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What you’ll do
- PhD or equivalent research depth, with a track record of technical mentorship. PhD in CS, Statistics, Math, or Physics. Publications in SIGIR, KDD, NeurIPS, or ICLR, and 5+ years building large-scale recommender systems in AdTech, e-commerce, or social. You’ve owned architectural bets and had accountability for outcomes.
- You set the research direction. You identify the highest-leverage problems at the intersection of generative AI and recommendation, define the multi-quarter research agenda, and align engineering and product leadership. That means owning how Generative Retrieval, Deep Ranking, and Re-ranking evolve across a stack built on 770 million users' behavioral data.
- Deep expertise in PyTorch and large-scale model optimization. Hands-on with high-concurrency optimization, quantization, and distillation — getting large generative models to run under extreme production constraints, not just in research environments.
- You are the company's deepest resource on generative recommendation. You translate SOTA research into systems adjoe can ship, review architectural decisions across teams, and raise the ML quality bar company-wide. When there's a hard bottleneck, you're the first call.
- You grow the teams around you. You mentor senior and mid-level scientists, lead architectural debates, and drive long-horizon investments without needing a roadmap handed to you.
What’s in It for You?
At adjoe, you’re not here to just close JIRA tickets, you’re helping build the infrastructure behind one of the most impactful platforms in adtech. The systems you work on will reach hundreds of millions of users and power billions of decisions every day.
- Go Big. Own projects with impact on 770M users and push adtech boundaries.
- Move Fast. Ship solutions multiple times a day, learn from results, and keep momentum.
- Be Direct. Solve problems openly and collaborate across teams.
- Thrive Together. Grow with a diverse, global team of people from over 40 different countries that learn from each other.
- Have Fun. Celebrate wins, enjoy daily victories, and bring your energy.
Other
🌎 We welcome applications from talent worldwide and provide relocation support to Hamburg, Germany for those ready to join our team.
SAP MM/SD Consultant (with German)
Location: Worldwide
Work Mode: Remote
What we offer
- 89% of projects use the newest SAP technologies and frameworks, e.g., S/4HANA Cloud, BTP, CPI, RAP, CDS, and OData.
- 98% of active development projects, with rare short-term support contracts.
- Expert communities and internal courses.
- Market-based compensation and regular performance reviews.
- Valuable perks to support your growth and well-being.
Requirements
- 3+ years of experience in consulting and delivering full-cycle implementation services for various customers.
- Good understanding of Finance processes and their business value drivers.
- Strong knowledge and experience with SAP MM/SD S/4HANA configurations.
- Knowledge in the integration with the other modules.
- Proficiency in German (B2+) and English (B2+).
What you'll do / Responsibilities
- Lead the design and implementation of SAP S/4HANA solutions in Sourcing & Procurement and Sales (MM, SD).
- Work directly with international clients to align SAP functionality with real-world business needs.
- Facilitate workshops to guide process improvements and solution architecture.
- Configure, test, and deploy integrated systems across procurement and sales processes.
- Ensure smooth knowledge transfer and long-term client self-sufficiency.
- Contribute to pre-sales by crafting solution proposals and showcasing business value.

What You Will Own
People & Teams
- Lead and develop four teams (Java, JavaScript/Go, Python, PHP) totalling ~18 engineers
- Build a culture of technical excellence, accountability, and continuous improvement
- Define hiring plans, conduct performance reviews, and drive career development for your reports
- Manage onboarding and ramp-up of new team members, projects, and libraries into the team's scope
Technical Direction
- Set and enforce standards for CVE analysis, vulnerability assessment, patch backporting, and security release processes across all language ecosystems
- Drive consistency in tooling and workflows across teams (CI/CD pipelines, patch delivery, release processes)
- Evaluate and guide AI-assisted automation for backporting and vulnerability discovery
- Serve as the final technical escalation point for complex or cross-team security issues
Delivery & Operations
- Own SLA compliance across all language platforms
- Align team efforts with client expectations and delivery commitments
- Organise and continuously improve development workflows and engineering processes
- Coordinate internal documentation and ensure it reflects the actual state of each project
- Ensure smooth coordination between language teams and OS, Docker, and platform teams
- Manage scope boundaries and overlap with OS and platform teams, particularly around shared dependencies and cross-ecosystem vulnerabilities
Requirements
Must have:
- Strong background in software development across multiple language ecosystems — at least 6 years of hands-on experience
- 3+ years of engineering leadership experience (Team Lead or Engineering Manager) in a product company
- Proven experience with technical delivery and accountability for team outcomes
- Solid Java experience is required; working knowledge of additional languages such as JavaScript, Go, Python, or PHP is a plus
- Hands-on experience with security research or vulnerability analysis: CVE triage, patch backporting, or similar
- Ability to work effectively in distributed teams and within larger organisational structures
- Strong communication skills — capable of interfacing with stakeholders and meeting external delivery expectations
- Experience building or improving engineering processes from scratch
- Experience with CI/CD systems (GitLab CI, Jenkins) and dependency management tooling (Maven/Gradle, npm, pip, Go modules)
- Upper-intermediate or higher English (written and spoken)
Nice to have:
- Hands-on experience identifying and analysing vulnerabilities in language-ecosystem applications
- Understanding of the security vulnerability lifecycle (CVE, CVSS, CWE, CSAF/VEX)
- Background in open-source security, supply chain security, or ELS-type products
- Experience integrating AI tooling into research or patching workflows
- Knowledge of Docker, Kubernetes, or cloud-native ecosystems
Benefits
What's in it for you?
- A strong focus on professional development with opportunities for learning and growth:
- Interesting and challenging projects,
- Mentor and other knowledge-exchange programs;
- Fully remote work with flexible working hours, that allows you to schedule your day and work from any location worldwide;
- Paid 24 days of vacation per year, 10 days of national holidays, and unlimited sick leaves to ensure you maintain a healthy work-life balance;
- Compensation for private medical insurance;
- Co-working and gym/sports reimbursement;
- The opportunity to receive a reward for the most innovative idea that the company can patent, fostering a culture of creativity and innovation.
Pre-Sales Engineer
REMOTEPython Java ScriptAI/MLB2 English level fluency
We are looking for a Pre-Sales Engineer to handle hands‑on technical tasks—architecture and setup—while also contributing to presales activities for the US market. You’ll focus on designing, building and supporting solutions across modern web and cloud stacks, occasionally engaging with clients and sales teams to shape technical proposals and discovery. This role offers varied technical challenges, exposure to diverse industries and clients, the chance to influence both project execution and proposal direction, and includes onboarding, ongoing support, and mentorship from an experienced colleague.
What you'll do
- Design architectural solution options and define technical approaches
- Lead project setup and kickoff: run init sessions, configure environments, and provide starter artifacts
- Support and oversee project launches and early iterations
- Provide technical leadership and mentorship: conduct reviews, guide tech‑stack selection, and ensure alignment with presales commitments
- Coordinate across business, development, and delivery teams
- Gather, analyze, and formalize customer requirements; translate business objectives into technical solutions
- Prepare estimates (costs, timelines, team composition), proposals, roadmaps, and presentations
- Participate in presales activities: demos, technical consultations, and RFP/RFI responses
- Identify risks and constraints, and propose mitigation plans.
We'd love to hear from you if you have
- 5–7 years of professional software development experience
- Strong full‑stack background with Python or JavaScript
- Practical experience with AI/ML technologies and model integration
- Proven hands‑on experience delivering end‑to‑end solutions (backend, frontend, and ML/AI integration)
- Systemic thinking and ability to make fast architectural decisions
- Proactive, mature mindset with a passion for cutting‑edge technologies and continuous improvement
- Strong client orientation and excellent communication skills for cross‑functional collaboration
- English — B2 or higher (for client communication and documentation).

Senior Automation QA Engineer
What you'll do
Test Automation: Design, develop, and maintain scalable test automation frameworks and test suites in Python for backend services and data pipelines. Backend & Data Testing: Perform comprehensive functional, integration, and performance testing of backend services, APIs, and data feeds. Release Management: Plan, coordinate, and execute production releases, ensuring zero-downtime and high quality. Process Optimization: Identify bottlenecks in the software development lifecycle (SDLC) and improve QA processes by automating routine tasks and integrating tests into the CI/CD pipeline. Root Cause Analysis: Analyze application logs, system metrics, and data anomalies to troubleshoot, isolate, and diagnose complex issues. Collaboration & Documentation: Work closely with developers, product managers, and data engineers to clarify requirements, refine user stories, and track issues in Jira/Confluence. Data Research: Assist the team in researching complex data discrepancies and data quality issues.
Responsibilities
- Design, develop, and maintain scalable test automation frameworks and test suites in Python for backend services and data pipelines.
- Perform comprehensive functional, integration, and performance testing of backend services, APIs, and data feeds.
- Plan, coordinate, and execute production releases, ensuring zero-downtime and high quality.
- Identify bottlenecks in the SDLC and improve QA processes by automating routine tasks and integrating tests into the CI/CD pipeline.
- Analyze application logs, system metrics, and data anomalies to troubleshoot, isolate, and diagnose complex issues.
- Collaborate with developers, product managers, and data engineers to clarify requirements, refine user stories, and track issues in Jira/Confluence.
- Assist the team in researching complex data discrepancies and data quality issues.
What makes you the perfect fit
- Senior-level QA Expertise: 5+ years of experience in QA with a strong focus on backend testing, test design techniques, and implementing Left-Shift testing methodologies.
- Python Proficiency: Strong programming skills in Python with solid experience in test automation frameworks (e.g., PyTest).
- Data & SQL: Strong knowledge of SQL and experience validating data integrity and processing across databases.
- API Testing: Proficient in testing REST/gRPC APIs using automation tools as well as hands-on tools like curl and Postman.
- Linux & Infrastructure: Comfortable with Linux/Unix environments, command-line tools, and basic shell scripting.
- Observability: Experience working with application logs and monitoring/metrics tools (e.g., Grafana, Prometheus, Zabbix, ELK) to diagnose system behavior.
- AI Tooling: Experience leveraging AI assistants (e.g., GitHub Copilot, ChatGPT) to accelerate test generation and code analysis.
- Soft Skills: Excellent analytical skills, attention to detail, and a proactive mindset towards quality.
- Will be a plus: Experience in finance or trading domain; Familiarity with TradingView as a product; Deep background in Data Testing (ETL pipelines, big data validation); Hands-on experience with cloud platforms, specifically AWS (S3, EC2, CloudWatch, etc.); Experience with CI/CD tools (GitLab CI, Jenkins, or GitHub Actions).
What we offer you
- Flexible working hours and a hybrid work format
- Well-equipped offices for focused and collaborative work
- A global, distributed team of 500+ professionals
- Learning, mentorship, and long-term career growth
- Relocation support and private health insurance
- Performance-based bonuses
- TradingView Premium access
- Regular team events and company-wide meetups
- Join the TradingView team and help us build a product used by millions of traders and investors worldwide
Who you are
Today you are a QA professional with backend testing strength, comfortable in a data-heavy environment, and excited by building robust test automation that scales with large data pipelines and services.

Technical Writer – Middle
SOFTSWISS is looking for a Technical Writer to join our team. In this role you will work on a wide range of user and technical documentation, helping us deliver clear, useful, and well-structured content for internal and external audiences.
What you'll do
- Create, edit, and maintain procedural documentation including but not limited to user guides, how-tos, and tutorials.
- Create, edit, and maintain technical documentation, including API documentation.
- Create release notes.
- Work closely with writers, developers, product owners, business analysts, QA team, and others.
Who you are
- Proficiency in English (C1 or higher).
- Russian at B2 level.
- Minimum of 3+ years of experience in technical documentation.
- Expertise in fintech domain.
- Docs-as-code experience.
- Proven experience in writing user guides in explanatory and procedural styles for multiple audiences.
- Excellent knowledge of Microsoft Style Guide, Google Style Guide, or similar.
- Experience in API writing, familiarity with API documentation tools.
- Experience with Git.
- Experience working with Cursor, VS Code, or similar dev tools.
- Experience in writing release notes.
- Proficiency with managing Confluence content.
- English not lower than C1 and higher.
- Experience in writing and proofreading of content, especially technology-related content.
- Excellent communication skills, both written and verbal.
- Critical thinking.
- Must be a self-motivator who works well independently and in a team environment with little or no direct supervision.
- Ability to influence and communicate effectively with both technical and non-technical people.
Nice to have
- Example of user guides you’ve created.
- Example of APIs that you’ve created.
- Example of release notes that you’ve created.
Main Advantages
- Private health insurance
- Sports benefits
- Comprehensive Mental Health Program
- Free English lessons (online)
- Local language courses
- Paid time off
- Maternity leave support
- Referral program rewards
- Upskilling, internal workshops, and participation in professional conferences and corporate events

Frontend Engineer, Expansion
What you’ll do
- The Expansion pod brings creativity and executional rigor to attracting new prospects and driving conversion, focusing on user journeys, interactive and highly polished tools for users, and building targeted experiences for our global users.
- As a frontend engineer you will reimagine the user experience moments that contribute to acquisition journeys.
- You will build delightful and original interactive tools and resources that attract users.
- You will collaborate deeply across design, engineering, and cross-functional teams and work across teams and tech stacks to create new site capabilities.
- You’ll enable prospective clients to self-select into the right Stripe product lines, bring additional partners into the authoring process while upholding our high quality bar, and directly impact Stripe’s success by marrying data-driven rigor with our deep commitment to craft.
Responsibilities
- Work closely with other engineers, pairing, mentoring, and continually building a culture of excellence
- Build beautiful, best-in-class end-user experiences to solve complex problems
- Utilize, maintain, and extend our design systems
- Integrate our web platform with self-serve authoring and experimentation
Who you are
We’re looking for someone who meets the minimum requirements to be considered for the role. If you meet these requirements, you are encouraged to apply. The preferred qualifications are a bonus, not a requirement.
Minimum requirements
- 2+ years of relevant web front-end development or creative technology experience at a tech-forward, product-driven company
- Experience writing clear, elegant code in a team environment
- Excellent verbal and written communication
- Passion for engineering solutions focused around growth hacking & enablement
Preferred qualifications
- A good understanding of the formal elements of design, not just limited to the web and including typography, layout, balance, and proportion
- Experience building highly complex interactive tools, including state management and data fetching
- Proficiency with React, with a focus on interactions, animation, performance, and polish
- Experience with A/B testing, synthetic monitoring, or accessibility testing

Senior Android Developer (f/m/d)
Location: Hamburg
Employment Type: Full time
Location Type: Hybrid
What you’ll do
- Own the core development and optimization of the adjoe Ads SDK (Kotlin & Android Internals), running inside hundreds of publisher apps, ensuring zero tolerance for instability across millions of devices.
- Collaborate with backend teams to design APIs and capture behavioral signals powering 50 billion daily ML predictions; design APIs with backward-compatible changes for thousands of external integrators; work with high-performance networking protocols (gRPC, Protobuf, Wire, OkHTTP).
- Design for minimal footprint to optimize battery and memory usage, ensuring native and fast ad impressions inside third-party apps.
- Monitor, debug, and maintain SDK reliability at scale; use observability and data tools (Sentry, Kibana, AWS: S3, QuickSight, Athena) to turn data into engineering decisions.
- Maintain and improve CI/CD pipelines (Gradle, GitLab CI) to automate testing, building, and packaging of mobile libraries.
- Plus – contribute experience in ad-tech/programmatic advertising (IAB specifications), NDK/JNI (C/C++ interop on Android), or cross-platform iOS development to support the ecosystem.
Who we are looking for
- Kotlin & Android Internals Expertise: 5+ years of Android experience (or 3+ years in SDK/library development) with deep understanding of Android lifecycles, ProGuard/R8, and multithreading.
- High-Performance Network Design: Strong API design background with backward compatibility for external integrators; experience with gRPC, Protobuf, Wire, OkHTTP.
- Resource-Constrained Optimization: Ability to design for minimal footprint, optimize battery and memory usage for code running inside other apps/devices.
- Data-Driven Observability: Experience with Sentry, Kibana, AWS (S3, QuickSight, Athena) to monitor and analyze SDK behavior.
- Build Automation & Delivery: Hands-on experience with Gradle and GitLab CI for automated testing, building, and packaging.
- Plus: AdTech/programmatic advertising experience, NDK/JNI or cross-platform iOS development is valued.
What’s in it for you
- Global team with relocation support to Hamburg, Germany.
- Impactful projects affecting hundreds of millions of users and billions of decisions daily.
- Move fast: ship solutions multiple times a day; learn from results; maintain momentum.
- Direct collaboration across teams; transparent problem-solving.
- Thriving, diverse team from over 40 countries; continuous learning from colleagues.
- Fun environment with daily wins and energy.
Benefits & perks
- Relocation support to Hamburg for eligible candidates.
- Global, diverse team culture.
Senior iOS Developer (Swift/Objective-C) - Remote Position
We're seeking an accomplished Senior iOS Developer to become an integral part of our innovative development team. In this fully remote role, you'll architect, build, and maintain sophisticated iOS applications utilizing Swift and Objective-C. The ideal candidate possesses at least 3 years of hands-on mobile development experience and demonstrates unwavering commitment to crafting exceptional user experiences across Apple's ecosystem.
Key Responsibilities
- Design and develop native iOS applications leveraging Swift 5.9+ and Objective-C frameworks.
- Create clean, maintainable code adhering strictly to SOLID, KISS, and DRY principles.
- Collaborate with cross-functional teams to conceptualize, design, and ship new features.
- Identify performance bottlenecks and resolve bugs to enhance application responsiveness.
- Maintain code quality and organization through meticulous Git version control practices.
- Implement responsive user interfaces that align precisely with design specifications.
- Integrate RESTful APIs and third-party services into mobile applications seamlessly.
- Perform thorough peer code reviews and provide constructive feedback to team members.
- Stay current with the latest iOS development trends, tools, and methodologies.
- Contribute to technical documentation and knowledge sharing within the team.
Required Skills & Qualifications
- 3+ years of professional iOS application development experience with a demonstrable portfolio.
- Strong proficiency in both Swift (5.0+) and Objective-C programming languages.
- Comprehensive understanding of iOS SDK, UIKit, and contemporary iOS features.
- Practical application of SOLID, KISS, and DRY principles in mobile development projects.
- Experience with Git for version control and collaborative development workflows.
- Proficiency with Xcode IDE and iOS simulators for efficient development cycles.
- Knowledge of RESTful APIs and JSON data structure parsing.
- Understanding of concurrent programming paradigms and memory management techniques.
- Bachelor's degree in Computer Science, Software Engineering, or equivalent practical experience.
- Excellent problem-solving capabilities coupled with meticulous attention to detail.
Nice to Have
- Experience with SwiftUI for creating modern, fluid user interfaces.
- Familiarity with Core Data frameworks for sophisticated local data persistence.
- Expertise writing comprehensive Unit and UI tests using XCTest framework.
- Understanding and implementation of architectural patterns (MVC, MVVM, VIPER, Clean Swift).
- Experience with dependency managers such as CocoaPods and Swift Package Manager.
- Knowledge of CI/CD pipelines specific to iOS application development.
- App Store submission and review process experience.
- Contributions to open-source projects or personal GitHub repositories.
- Proficiency with Reactive programming paradigms (RxSwift or Combine).
- Understanding of BLE connectivity, push notification systems, and background processing.
Why Join Us
Become part of our forward-thinking team and contribute to innovative projects while enjoying the freedom to work from anywhere across the globe. We foster a collaborative environment where you can expand your technical expertise, work with cutting-edge technologies, and make a substantial impact. Our flexible work arrangements, competitive compensation package, and commitment to professional growth make this an exceptional opportunity for passionate iOS developers seeking to advance their careers in mobile technology.

Senior Software Engineer
Responsibilities:
- Construir y evolucionar software con un enfoque en la creación de funcionalidades de plataforma que otros equipos utilicen en su trabajo.
- Producir una gran cantidad de código de alta calidad para construir APIs escalables, eficientes y seguras.
- Utilizar habilidades de frontend para construir componentes efectivos en React.js que puedan usarse en todo Checkr.
- Diseñar y mejorar la arquitectura de sistema de nuestra plataforma que impulsa los productos de Screening de Checkr.
- Colaborar con ingenieros Staff y Principales para influir y ejecutar nuestros diseños técnicos.
- Comunicarse eficazmente con los ingenieros de todo Checkr que dependen de la funcionalidad que estás construyendo: ¡ellos serán tus clientes principales!
- Redactar documentación clara sobre cómo interactuar con las funcionalidades que construyes, aplicaciones y buenas prácticas de software.
- Implementar pasos en el pipeline de CI/CD y gestionar el control de versiones (Git).
- Mentorear y guiar a otros desarrolladores dentro de la organización de Ingeniería.
- Ayudar a identificar y resolver errores (bugs) complejos.
What you bring:
- Inglés avanzado (escrito y hablado).
- 6+ años de experiencia en desarrollo de software full-stack.
- Dominio de Ruby, JavaScript (React.js), HTML, CSS, protocolos HTTP y Regex.
- Disponibilidad para trabajar híbrido 3x2 en Santiago (oficina ubicada en torre gran costanera).
- Sólida comprensión de fundamentos de Ciencias de la Computación: bases de datos relacionales, estructuras de datos y algoritmos, ORM y APIs REST.
- Sólidas prácticas de desarrollo usando TDD, DDD y programación funcional u orientada a objetos.
Requisitos indispensables:
- Experiencia con bases de datos relacionales y no relacionales (MongoDB, Redis) es deseable.
- Experiencia con microservicios y patrones como Event Sourcing o API Gateways.
- Experiencia con arquitecturas orientadas a eventos (Kafka, RabbitMQ o SQS).
- Experiencia en observabilidad (Datadog, Grafana o Splunk).
- Experiencia en IA (Inteligencia Artificial) es deseable.
- Fuerte sentido de propiedad y capacidad para colaborar con equipo y stakeholders.
- Entusiasmo por aprender, innovar y divertirse; mentalidad de A-player y orientación a la acción.
Lo que ofrecemos:
- Ambiente dinámico y colaborativo; programa de learning and development; compensación competitiva en cash y equity; oportunidades de crecimiento.
- Cobertura médica, dental y de visión 100%.
- Reembolso de hasta $25K para servicios de fertilidad, adopción y planificación parental.
- Política de PTO flexible y estipendio mensual de bienestar.
- Ambiente de oficina con sede en Denver, CO; San Francisco, CA; Nashville, TN; y Santiago, Chile; preferencia por trabajo presencial 3+ días a la semana en oficina.
- Perks de oficina como almuerzo varias veces a la semana, estipendio de transporte y snacks.
- Posibilidad de stipend de reubicación para quienes se muden a una ubicación de hub de Checkr.
Nota de transparencia de pago y ubicación

Backend Engineer - Customer Identity
Department:Tech - Customer Identity
Location: Barcelona
What you’ll do
- Design, develop, test, deploy and maintain software in a thriving environment
- Manage individual project priorities and deliverables whilst working in a team who enjoy knowledge sharing sessions
- Work with international, highly engaged peers.
- Work with people and teams who have a getting things done attitude.
What you need to be successful
Background:- Experience in developing software using Java or Kotlin.
- The ability to work independently.
- Be highly motivated and a fast learner.
- Be a problem solver.
- Full professional proficiency in English.
- Strong call to action and for getting things done.
- Motivation to write code which is well-tested and well-documented.
- Give and receive open, direct and timely feedback.
What’s in it for you
- Accelerate your career growth by joining one of Europe’s most talked about disruptors 🚀.
- Employee benefits that range from a competitive personal development budget, work from home budget, discounts to fitness & wellness memberships, language apps and public transportation.
- As an N26 employee you will have access to a Premium subscription on your personal N26 bank account. As well as subscriptions for friends and family members.
- Additional day of annual leave for each year of service.
- A high degree of autonomy and access to cutting edge technologies - all while working with a friendly team of peers of diverse nationalities, experiences, and backgrounds.
- A relocation package with visa support for those who need it.
SAP MM/SD Consultant
What you’ll do
- Functional SAP experience, including hands-on MM Configuration responsibilities in the following areas:
- Enterprise and Procurement Organization Structure
- Purchase Order Processing
- ATP
- MRP
- Pricing
- Delivery Processing
- Customer Master
- Invoicing and EDI
- Inventory management, etc.
Who you are
- Strong background in logistics and integration processes;
- Minimum 3 full life cycle implementation experience from blue print to go live for SD and/or MM module;
- Proven functional consulting experience with experience in system implementation/migration projects;
- Proven ability to work creatively and analytically in a problem-solving environment;
- Experience with ERP and S/4HANA;
- Experience with Agile/Activate methodologies;
- Excellent client-facing and internal communication skills;
- SAP certification(s) strongly preferred;
- Ability to work independently with minimal supervision;
- Polish and German will be a plus;
- English (written and spoken) upper-intermediate or better.
Requirements
- As listed under “What you’ll do” and “Who you are” above.
Perks and Benefits
- Be part of a multinational team working with industrial leaders on full-cycle projects.
- Access individual employee development plans, certifications, and opportunities to work with cutting-edge technologies.
- Participate in internal meetups, attend professional events, and take company-sponsored English, German, and Polish language courses.
- Expand your knowledge with access to professional literature, with the option to request new books at company expense.
Requirements
Equal to the list in “What you’ll do” and “Who you are.”
About LeverX
We are proud to be an SAP Gold Partner—a global company with 20 years of experience and a track record of successful international projects. We’re about our people, sustainable growth, community support, and continuous learning. We believe in you.

Software Developer | C#/.NET + ReactJS (Full-Stack Web)
Software Web Developer contributes to the development of the cloud/web part of a medical imaging product portfolio (R&D, SW Development). Working as part of a Scrum team, the developer builds the product functionalities defined in the roadmap together with teammates, and stays continuously up to date with the latest development technologies to make the most appropriate choices for the products.
Responsibilities
- Understand functional needs and translate them into development activities
- Develop back-end services hosted in Microsoft Azure Cloud, based on the C# .NET framework
- Develop web applications based on the ReactJS framework
- Interact with MS SQL databases using Entity Framework
- Collaborate with Software Quality Engineers and Product Owners to meet customer needs and quality standards
- Collaborate with the DevOps team to deploy solutions to production environments
- Interact with other Scrum teams based in France and China for broader capability delivery
- Accountable, together with the Scrum team, for the quality of products delivered to end customers (market fit driven by the Product Owner; timelines driven by the Program Manager and facilitated by the Scrum Master)
Skills
Must have- Engineering diploma in computer science
- Experience with C#.NET and ReactJS technologies
- Experience developing back-end services in a Microsoft Azure cloud context
- Knowledge of MS SQL and interaction via Entity Framework
- Knowledge of REST API principles
- Comfortable with English, written and spoken
- Customer focus in every task
- Team player, easy to collaborate with
- Makes technical decisions aligned with customer expectations, timing constraints and code quality
- Experience working in a regulated environment is a plus
Other
- Languages: English: B2 Upper Intermediate
- Seniority: Senior
Responsibilities
- Own and deliver IVVQ activities across aircraft, system, and item levels for the ZA200 fuel cell system
- Develop and maintain V&V, integration, and qualification plans, ensuring alignment with lifecycle and programme schedules
- Plan and execute validation, integration, verification, and DO-160G environmental qualification campaigns
- Authorise test specifications, procedures, execution, and results; lead defect investigation and resolution
- Lead IVVQ reviews and represent IVVQ at design reviews, managing verification risk and stakeholder alignment (customer, regulator, suppliers)
- Collaborate cross-functionally (Airworthiness, Certification, Safety, Test, Design) to deliver compliant IVVQ in line with ARP4754B / ARP4761A
Experience & Qualifications
- Degree in Aerospace, Electrical, Mechanical, or related engineering discipline (Master’s preferred)
- ~6+ years’ systems engineering experience in aerospace, including certified or in-certification programmes
- Strong working knowledge of ARP4754B (essential), with familiarity of ARP4761/A, DO-178C, DO-254
- Proven experience planning and executing system-level IVVQ programmes, including verification strategy, test development, and traceability
- Experience with DO-160G environmental qualification and supplier test oversight (including witnessing and data acceptance)
- Proficiency with requirements tools (e.g., Polarion); experience in propulsion, fuel cell, electric, or emerging aerospace systems advantageous
Why Join Us?
We want to help you be your best self, at work and at home, that’s why we provide our employees with…
- Private health and dental care– get access to services and support when you need them. Add your family members too.
- Mental health support– enjoy a culture where positive mental health is front of mind with our trained Mental Health First Aiders, Employee Assistance Programmes and wellbeing support.
- Free lunch and healthy snacks– keeping you fuelled up so you can help us deliver the technology of the future**
- Sports, games and culture clubs– connect and keep fit with other ZeroAvians by joining one of our clubs – such as, running, cycling, padel, trivia, theatre and gardening.
We also offer:
- Stock options– so you can share in our success.
- 25 days holiday, plus public holidays and additional days awarded for long service
- Free EV Charging and membership in our EV Club.
- Salary Sacrifice Schemes for EV Club, Curry's Tech and Cycle to Work
- Weekly Spot Bonuses to reward excellence.
- Income Protection and Legal Support for peace of mind.
- Relocation Support to make your move seamless.
Diversity and Inclusion
As an emergent company shaping the aviation industry, we know that diversity fuels success and unlocks potential. We embrace being an equal-opportunity employer and actively seek individuals from diverse backgrounds. We value the multitude of skills, perspectives, and mindsets everyone can bring to the table. These experiences ignite creativity, originality, and growth. We proudly reject discrimination in all forms, including that based on race, religion, color, national origin, sex, gender expression, sexual orientation, age, marital status, veteran status, or disability status.

Responsibilities
- Design and develop backend architecture for business systems, ensuring high availability, high performance, and scalability.
- Perform service governance and performance tuning in high-concurrency scenarios to continuously improve system stability, throughput, and response efficiency.
- Develop core services and business modules, including user systems, authentication, authorization, and open API capabilities.
- Participate in microservices architecture design and implementation, promoting system modularization, service-orientation, and engineering excellence.
- Troubleshoot production issues, analyze performance, and resolve complex technical problems.
- Collaborate with product, frontend, QA, and cross-functional teams to ensure high-quality delivery of requirements.
- Continuously optimize development processes, code quality, and technical solutions to improve maintainability and R&D efficiency.
Qualifications
- Bachelor's degree or above in Computer Science or a related field.
- 3-5+ years of Java backend development experience with a solid technical foundation. Outstanding fresh graduates may also be considered.
- Proficiency in Java core technologies, with a deep understanding of JVM, concurrency programming, collection frameworks, I/O, and network communication.
- Familiarity with mainstream frameworks like Spring Boot and Spring Cloud, with experience in microservices development and governance.
- Experience in developing high-performance, high-concurrency systems, with familiarity in caching, asynchronous processing, rate limiting, circuit breaking, and thread pools.
- Proficiency in common middleware such as MySQL, Redis, Kafka, and Elasticsearch, with an understanding of their use cases and performance optimization methods.
- Understanding of common distributed system issues and solutions, including idempotency, consistency, distributed locks, transaction processing, and service fault tolerance.
- Strong analytical and problem-solving skills, capable of independently troubleshooting production issues and resolving complex problems.
- Familiarity with authentication and authorization mechanisms, with experience designing and developing with OAuth2, JWT, SSO, RBAC, and Session.
- Experience with Kubernetes, including containerized deployment, service orchestration, auto-scaling, and configuration management.
- Experience with AWS cloud services is a plus.
- Strong coding standards, documentation skills, and teamwork abilities.
What you'll do
See responsibilities above.
Who you are
See qualifications above.
Tech stack
- Java
- Spring Boot, Spring Cloud
- MySQL, Redis, Kafka, Elasticsearch
- Kubernetes
- AWS
Team description
Cross-functional collaboration with product, frontend, QA, and other teams to deliver high-quality backend services and microservices.
Benefits & perks
Not specified in provided content.
AI Ruby on Rails Engineer
European, the Middle East or African working hours
Apply now
What you’ll be working on:
- Designing and building AI/LLM-assisted product features
- Integrating LLM APIs into Ruby on Rails systems
- Combining AI approaches with business logic, tests, fallbacks, and production safeguards
- Owning features from technical design to production
- Improving reliability, accuracy, consistency, latency, cost, security, and maintainability
- Writing and maintaining automated tests, including unit, integration, and E2E tests
- Debugging production issues and improving system behavior over time
What we’re looking for:
- Practical experience building with AI/LLM technologies, not just using AI tools casually
- Strong Ruby on Rails experience, ideally at a senior level
- Good judgment about when AI is useful and when simpler engineering is better
- Strong backend skills, including databases, API design, performance, background jobs, and security
- Ability to break down ambiguous problems into clear technical solutions
Why Join OTGS?
- Stable & self-funded: Founded in 2007, profitable, and independent.
- Industry leaders: Creators of WPML, the #1 multilingual plugin for WordPress, used on 1.5M+ sites
- Fully remote, async-friendly: Work from anywhere within EMEA hours
- Engineering-driven culture: Ownership, autonomy, testing, and thoughtful problem-solving
- Fair compensation and great benefits: Designed to support your well-being both inside and outside of work.
Want to make a lasting impact on a product used by thousands of real customers? We would love to hear from you.
Senior Gameplay Engineer
Playground Games is looking for a Senior Gameplay Engineer to join our Fable team on a permanent basis.
What you’ll do
- Provide guidance and mentoring to the gameplay engineering team.
- Own significant gameplay and engine features within our custom, proprietary engine.
- Work closely with other teams, providing reliable and effective workflows, empowering them through our technology.
- Become a key collaborator who can work effectively within a large multi-disciplined team.
What you’ll bring
- 5 years of Gameplay Engineering experience, with demonstrable work on at least one published title.
- Strong C++ experience.
- Experience working with proprietary engines is a plus.
- Excellent task planning and delivery mindset.
- A genuine passion for video games.
About us
Playground Games is looking for a Senior Gameplay Engineer to join our Fable team on a permanent basis.
About the role
As a Senior Gameplay Engineer, you will play a crucial role within the gameplay engineering team, promoting good practices, mentoring other engineers, and guiding the delivery of high-quality systems that are performant and scalable. You will work with the design teams to understand and deliver game features, game systems, and mechanics. You will work with the lead engineer to establish high-level goals for the team, and directly with the dev team to plan and deliver gameplay features. Our ideal candidate is an expert Gameplay Engineer who is passionate about their craft, autonomous, skilled in C++, and has a proven track record in games development.
Location and benefits
This is a permanent role based at our state-of-the-art facilities in Royal Leamington Spa, with a hybrid work model in place. Relocation assistance is available if required.
Who you are
Strong candidate with a genuine passion for video games, capable of mentoring others and driving features from concept to delivery within a large team.
Playground Games is proud to be an equal opportunity employer, we believe that diversity and inclusion fuels creativity. We are dedicated to creating a safe, comfortable and welcoming working environment. We strive to build an inclusive culture that encourages, supports and celebrates the diverse voices of our team members. It drives our innovation and connects us closer to our players. We are committed to equity, diversity, and inclusion across age, disability, gender reassignment, marriage and civil partnership, pregnancy and maternity, race, religion or belief, sex and sexual orientation.
At Playground Games we recognise the importance of self-development, career progression, well-being and retention of our colleagues. We celebrate difference and welcome everyone to join us and to be themselves at work.
If you require any reasonable accommodation to apply for this position, please contact us on recruitment@playground-games.com

Security engineer
A few examples of your responsibilities
- Assess and strengthen security. Identify security loopholes across systems and infrastructure using modern security tools, automation, and continuous testing.
- Attack and defend. Conduct internal security assessments and implement countermeasures that safeguard the integrity and confidentiality of company data.
- Automate security practices. Design and build solutions that embed strong security controls directly into infrastructure and engineering workflows.
- Partner on privacy and compliance. Work with privacy experts to translate regulatory requirements into robust, practical, technical safeguards.
- Stay ahead of threats. Track emerging vulnerabilities, attack techniques, and security practices, and share knowledge with Spooners to continuously strengthen our security posture.
What we look for
- Reasoning ability. Given the necessary knowledge, you can solve complex problems. You think from first principles, and structure your ideas sharply. You resist the influence of biases. You identify and take care of the details that matter.
- Drive. You’re extremely ambitious in everything you do—and your initiative, effort, and tenacity match the intensity of your ambition. You feel deeply responsible for your work. You hold yourself to a high—and rising—bar.
- Team spirit. You give generously and without the expectation of receiving in return. You support the best idea, not your idea. You're always happy to get your hands dirty to help your team. You’re reliable, honest, and transparent.
- Proficiency in English. You read, write, and speak proficiently in English.
What we offer
- Incredibly talented, entrepreneurial teams. You’ll work in small, result-oriented, autonomous teams alongside some of the brightest people in your field.
- An exceptional opportunity for growth. We go to great lengths to hire individuals of outstanding potential—then, our priority is to put them in the ideal position to thrive. Spooners in their 20s lead products worth hundreds of millions of dollars. And if you’ve got what it takes, you’ll soon be playing an essential role in major projects, too.
- All. These. Benefits. Flexible hours, remote working, unlimited backing for learning and training, top-of-the-market health insurance, a rich relocation package, generous parental support, and a yearly retreat to a stunning location. We help each Spooner set up the conditions to do their best work.
- A flexible start date and part-time options. You don't need to wait until graduation to apply. We offer flexible start dates and the possibility to begin part-time, transitioning to full-time as you complete your degree. Many Spooners joined before graduating and progressively took on greater responsibility, with arrangements that allowed them to do so without compromising their education.
- Competitive pay and access to company equity at a discounted price. Typically, we offer individuals with limited experience an annual salary of £85,797 in London and €66,065 elsewhere in Europe. For a candidate that we assess as possessing considerable relevant experience, the salary on offer tends to be between £112,189 and £250,512 in London, and €107,837 and €188,848 elsewhere in Europe. Compensation varies by location and expected impact, and grows rapidly as you gain experience and translate it into greater contributions. For individuals who demonstrate exceptional capability, we may offer compensation that extends beyond the usual ranges to reflect their higher expected impact. If you're offered a permanent contract, you'll also be able receive some of your pay in company equity at a discounted price, thus participating in the value creation we achieve together. If relocating to Italy, you may enjoy a 50% tax cut.

Engineering Manager, Verifications
What you’ll do
- Lead and grow the Verifications engineering team — setting technical direction, driving performance and career development conversations, and building a hiring pipeline that strengthens the team over time
- Own the reliability and quality of a broad portfolio of fulfillment integrations — partnering closely with vendors and internal stakeholders to reduce friction, improve turnaround times, and minimize candidate and customer impact when issues arise
- Partner with Product to define and execute the roadmap across employment, education, drug and health, and compliance products — translating customer and regulatory requirements into clear engineering priorities
- Drive technical strategy for scaling a complex, integration-heavy system — making deliberate architecture decisions that improve coverage, reduce manual exceptions, and build toward a more automated and consistent verification experience
- Lead the team's adoption of AI-assisted development practices — helping engineers move faster while maintaining the quality and accuracy standards that a regulated, data-sensitive product requires
- Represent Verifications in cross-functional planning — serving as the engineering voice on team capacity, tradeoffs, and roadmap sequencing with Product, Compliance, and Engineering leadership
What you bring
- 4+ years as an engineering manager, with a track record of building and developing high-performing teams
- 8+ years as a software engineer, with strong command of service architecture, distributed systems, and system design
- Experience managing complex third-party integration environments — you’re comfortable owning reliability across systems you don’t fully control, and know how to structure teams and processes around that reality
- A track record of improving operational metrics — reducing incident frequency, improving detection time, or shipping reliability improvements in high-stakes production environments
- Familiarity with AI-assisted development and agentic coding tools — you understand how to help your team adopt these responsibly and can reason about the tradeoffs between velocity and quality they introduce
- Experience working on regulated products where data accuracy and legal compliance are non-negotiable
- Strong incident management skills — you can lead both the technical response and the stakeholder communication when things go wrong
- Ability to make prioritization decisions quickly, with a clear framework for balancing short-term reliability work against longer-term product investments
- Strong communication skills across technical and non-technical stakeholders — Product, Operations, Compliance, and senior leadership
- A genuine investment in developing people — through career conversations, stretch assignments, and creating conditions for engineers to grow
- Humility, openness to feedback, and eagerness to learn
- An A-player mindset with a strong bias for action: you raise the bar, move with urgency, stay resilient through ambiguity, and take ownership to deliver meaningful outcomes
What We Offer
A fast-paced and collaborative environment
- Learning and development allowance
- Competitive cash and equity compensation, and opportunity for advancement
- 100% medical, dental, and vision coverage
- Up to $25K reimbursement for fertility, adoption, and parental planning services
- Flexible PTO policy
- Monthly wellness stipend
- In-office perks and hub locations with required in-office days

Job Overview
We are looking for a Technical Artist to join Wargaming and be a part of the product team working on World of Tanks Console.
What will you do?
- Support the vehicle art pipeline on console: validate incoming assets, troubleshoot integration issues, and keep content production stable across the team
- Improve the current artist workflow: identify bottlenecks, propose practical fixes, and roll out pipeline changes that reduce manual work and error rates
- Develop and maintain tools, scripts, and workflows in Maya, 3ds Max, and Blender to speed up modeling checks, scene setup, export, and delivery for console builds
- Build and maintain Substance Designer graphs and material templates used across the pipeline; support Substance Painter handoff and texture validation for console-ready PBR sets
- Implement and integrate art content into the game engine using proprietary tools (Tank Importer, Forge), including game object templates, material assignments, texture setups, and XML configuration
- Maintain shader, material, and asset validation workflows to catch issues before content hits console builds
- Optimize art content for Xbox and PlayStation: LODs, texture memory, draw calls, and other platform-specific performance constraints
- Contribute to pipeline documentation and provide technical guidance to artists on naming conventions, file structure, export rules, and engine requirements
- Run in-engine QA on console builds to verify asset correctness, visual consistency, and performance against platform budgets
- Collaborate with artists, designers, and engineers on pipeline improvements and fixes for recurring production blockers
- Professional proficiency in English
What are we looking for?
- 3+ years of experience as a Technical Artist in game production, preferably on console titles
- Strong scripting skills (Python, MaxScript, or similar) and comfort building practical production tools
- Solid understanding of the game art pipeline: modeling, UVs, baking, PBR texturing, rigging, and engine implementation
- Proficiency in Maya, 3ds Max, and/or Blender; working knowledge of Substance Painter, Substance Designer, and Photoshop
- Experience integrating and validating assets in a proprietary or in-house game engine; comfortable working without off-the-shelf DCC-to-engine plugins
- Good grasp of console platform constraints (Xbox, PlayStation): memory budgets, LOD strategy, shader cost, and build-time validation
- Understanding of console optimization pipelines: how assets move from DCC through bake/export/import into builds with platform budgets enforced at each step
- Experience with version control systems (Perforce, SVN, or similar)
- Ability to read and maintain structured data (XML or equivalent) and debug configuration issues
- Clear documentation habits and enough communication skills to unblock artists without slowing production
What additional skills will help you stand out?
- Experience supporting vehicle or hard-surface asset pipelines
- Familiarity with character pipelines: rigging validation, skinning checks, and engine-ready character setup
- Familiarity with cloth pipeline workflows: simulation export, deformation, and in-engine cloth setup or troubleshooting
- Familiarity with rigging and skinning workflows from a tooling or validation perspective
- Understanding of BC/DXT texture compression formats and how compression choices affect visual quality and memory on console
- Prior experience with proprietary game engines and custom import/editor tooling
- Prior work on World of Tanks, World of Tanks Console, or similar vehicle-based titles
- Hands-on experience profiling and fixing art-related performance issues on console hardware or dev kits
- Knowledge of tank asset structure and how vehicle content is organized in a live-service game
- Interest in World of Tanks Console gameplay and how content updates ship to players
Work mode
- Hybrid (2-3 days of work from the office)
- This role is eligible for relocation & immigration support
Benefits
- Benefits and perks are tailored to the local market and culture. Our benefits in Belgrade include:
- Additional vacation days based on years of service at Wargaming: up to 5 days on top of the statutory minimum
- Additional paid time off (5 Personal Days, Birthday Leave, Marriage Leave, Compassionate Leave)
- Sick Leave Compensation, Maternity Leave Benefits
- Premium Private Health Insurance
- Career development and education opportunities within the company
- English clubs and platform for learning languages
- Mental well-being program (iFeel)
- Commuting allowance
- Company events
- FitPass membership
- Discounts for employees
- Personal Gaming Account
- Coffee, fruits, and snacks in the office
- On-site canteen with subsidized prices for food and drinks
- Seniority Awards
- Referral program - you can recommend the best talents to the Company and receive a reward
- Please submit your CV in English to ensure smooth processing and review.
About Wargaming
Wargaming is an award-winning online game developer and publisher headquartered in Nicosia, Cyprus. Operating since 1998, Wargaming has become one of the leaders in the gaming industry with 15 offices worldwide, including studios in Chicago, Prague, Shanghai, Tokyo, and Vilnius. Our diverse and multicultural team works together to deliver a top-class experience to millions of players who enjoy Wargaming's titles across all major gaming platforms. Our flagship products include free-to-play hits World of Tanks, World of Warships and World of Tanks Blitz.