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Excitingly, we're developing new products, including Busy Bar, which connects deeply with online services. This growth means that establishing a secure, resilient infrastructure with excellent monitoring is a critical area of focus for us right now.
Requirements
- Linux โ advanced level: architectural knowledge, deployment, debugging
- K8S โ advanced level: architecture, public and private clouds, networking (including service mesh), debugging
- Docker โ packaging web services and auxiliary tools
- Observability โ Monitoring (Zabbix/Nagios, etc), Logging (graylog, logstash, etc), Metrics (Prometheus) Networks โ OSI Model, Linux network stack
- Python โ for practical tasks related to automation of deployment, testing, monitoring
Nice-to-haves
- MacOS, Windows skills
- Knowledge of GitHub/GitLab CI/CD
- Experience configuring L2/L3 network equipment
Your responsibilites
- Managing Flipper Devices infrastructure and k8s
- Improving infrastructure access control policies
- Reviewing and improving deployment automation processes
- Expanding existing monitoring systems
- Building processes for regular infrastructure audits
- Incident management
What we offer
- Choose your work format: office, hybrid, or fully remote from anywhere in the world
- You will be provided with all the necessary equipment for a comfortable working environment
- Benefits such as VHI, corporate sports, foreign language courses, and therapy sessions
- A five-day workweek with a flexible start of the working day

Hyperskill is a fast-moving startup that helps people develop essential computer science and AI skills. Weโre building a new line of B2B AI bootcamps for companies looking to integrate AI into their workflows โ and weโre looking for an AI Engineering Expert to help us make these programs truly practical and impactful.
This is a part-time, flexible, project-based role โ perfect to combine with your main job or personal projects.
We're fast, remote, async, and allergic to bureaucracy.
Weโre async-first, remote, and fast-moving. Decisions are made quickly and iterated on even faster โ we prefer 70% clarity today over perfect decisions next month. We care more about impact than process.
About the Role
Youโll work with our team to shape AI bootcamps designed for corporate teams โ both tech and non-tech. Your role is to make sure what we teach is grounded in reality, not theory. Youโll bring real experience of AI integration into enterprise environments and help turn it into educational content, toolkits, and workflows that people actually use.
Youโll help companies use AI meaningfully โ not just for hype, but for actual outcomes. Your input will directly shape what our clients learn, how fast they adopt AI tools, and how confidently they integrate them into production workflows. Youโll make our content credible and useful for real teams solving real problems.
What Youโll Do
- Review and improve pilot B2B AI bootcamps
- Share practical cases of AI adoption in enterprise settings
- Draft toolkits, workflows, and checklists for learners and managers
- Co-create program concepts for new clients
- Provide expert feedback on draft content
- Optionally join live sessions or internal workshops as a guest expert
- Contribute ~5โ10 hours/week on a flexible schedule
What Weโre Looking For
- 5+ years in software engineering, automation, or digital transformation
- Solid Python skills for scripting and automation
- Ability to explain complex topics clearly and systematically
- Comfortable with async communication in distributed teams
- Familiarity with enterprise environments and constraints
- Hands-on experience integrating AI tools (GPT, Claude, OpenAI API, etc.) into corporate workflows
Nice to Have:
- Experience with LangChain, HuggingFace, agentic frameworks
- Mentoring or teaching experience
- Curiosity about emerging AI tools and automation trends
What We Offer
- Contractor agreement with a US-registered legal entity
- 100% remote, async-friendly collaboration: You can work from anywhere in the world
- ~5โ10 hours/week, with flexibility to work around your schedule
- Hourly rate: $20โ40/hour, depending on experience
- Creative freedom and real ownership
- Direct impact on educational products
- Opportunity to grow into a lead expert or curriculum partner role
If youโre excited about shaping how real companies adopt AI โ and you prefer progress over perfection โ weโd love to hear from you!

This is a remote based role that will involve occasional travel to business offices across the UK as per business needs.
Purpose of the Role
This exciting remote based opportunity will lead on all networking aspects of Low Level and High-Level Designs for Infrastructure services within the IT Operations team. A Network Infrastructure expert, you will collaborate with Engineers and Architects on projects and maintaining BAU. A third line support you will also lead technical investigations into complex issues through to conclusion, review new technology, provide recommendations and line manage a small team of engineers.
What you will do
This is an overview and not an exhaustive list of responsibilities. Collaborating with your Line Manager, you will develop your own objectives but focus on all of the following and more:
- Scoping, planning, documenting, and implementing of technologies as required to the highest standards.
- Lead as a Network technical subject matter expert, providing guidance and knowledge to the IT Operations.
- Produce Low Level and High-Level Network Design documentation for all project workstreams as required.
- Deliver customer and stakeholder management to all those with an interest in any works undertaken
- Research Cloud and Network solutions through internal and external knowledge base, as needed.
- Liaise with business, vendors and other IT personnel for the progression of change works.
- Escalate issues with accurate documentation to suitable technical expert or vendor, when required.
- Create knowledge articles for project solutions to be used for future support.
- Provide suggestions for continual improvement.
- Day to day line management and running of the Field Delivery Engineers and Network Engineers, including managing workloads, escalation and communication of status and challenges to higher management.
Who we are looking for
This is an opportunity for an experienced Senior Network Leader who is willing work as part of a team and manage stakeholders at all levels. We are looking for someone has:
- Networking knowledge and experience, with LAN, WAN and data communication systems, with emphasis on SDWAN technologies.
- Cloud network and Azure infrastructure monitoring knowledge.
- Experience of Enterprise Voice Solutions (BT CloudWorks used in the network).
- Branch office network design incorporating ISE technologies, circuit provision design and sizing.
- In depth understanding of our networking stack (or at least some aspects): Cisco Meraki, Cisco ISE, BT SDWAN, InfoBlox, Cisco FTD Firewalls, Azure Firewalls.
- Solid foundation in security to design and manage secure network systems effectively.
- Solid Understanding of IAM principles, including user authentication and authorization, vital for controlling access to network resources.
- Solid understanding of storage technologies to effectively design and manage network infrastructures that support data storage and retrieval.
- General M365 knowledge and experience of network integration with its services.
- Knowledge of Infrastructure as Code โ Terraform/Ansible.
- Demonstrate excellent knowledge and experience of multi cloud technologies
- General on-Premise Active Directory and Microsoft Entra knowledge and experience
- General device management using SCCM/Intune and administration knowledge and experience
- Ability to analyse network infrastructure, highlighting area of risk and put forward suggestions for systems improvements.
- Line management and mentorship
This is an opportunity for a self-disciplined leader with strong interpersonal and leadership skills, who can work independently but also as part of a team. You will need to have excellent attention to detail, critical thinking and problem-solving skills with experience delivering projects from start to finish. We are looking for a proactive, collaborative, organised individual to join and lead the team.
In return you will be welcomed and supported by our Ardonagh family and be joining an organisation that cares about you as a person and your wellbeing.
Some of the other benefits are:
- Holiday entitlement of 26 days plus bank holidays
- Opportunity to progress your career across the entire Ardonagh family
- Award-winning learning & development offering and support to obtain professional qualifications to enhance your knowledge and career prospects
- Pension scheme for when you feel itโs time to retire
- 24-hour Employee Assistance support for you and your familyโs physical and mental wellbeing
- Corporate perks such as discounted gym memberships, cinema tickets, shopping, Eyecare vouchers, cycle to work and much more
- One day paid volunteering to give back to our communities
- Ardonagh Community Trust (ACT) - raising funds for charity with donation matching in your local community
- The Spotlight Awards, where we celebrate the best of the Ardonagh Group and all the bright talent across our business.
We offer genuine potential for both personal and professional development, come and be part of our story and help us shape our future. So, what are you waiting for? Apply today and one of our team will be in touch.

We are looking for a talented self-driven Mobile Developer to join our development team, to support the delivery of current and upcoming projects.
The role is responsible for contributing to the development of high-quality mobile applications and progressive web apps using React Native and Ionic frameworks, ensuring scalable, secure and high-performance solutions.
We offer the opportunity to work with an experienced, skilled, and friendly team that takes pride in the quality of our work. If our mission excites you and you believe you can contribute to our culture, direction, and growth, weโd love to hear from you.
This is a remote-working role for applicants based in the UK only.
If you are interested, use the application form at the bottom of this page.
Roles & Responsibilities
- Develop high-quality mobile applications using React Native and Ionic
- Collaborate with design and product teams for features/updates
- Design efficient mobile architecture, UI/UX and responsive design
- Design and maintain efficient API integrations between systems
- Enforce coding standards for maintainable, scalable code delivery
- Conduct code reviews and provide constructive developer feedback
- Identify and address application performance bottlenecks
- Communicate effectively with stakeholders on development progress
- Attend daily stand-ups and maintain project tickets
- Conduct client demonstrations showcasing product features
Experience
- 5+ years in React Native, Typescript
- API integration experience including RESTful services
- Version control systems and collaborative development experience
- Ionic experience would be beneficial
Knowledge, Skills & Abilities
- Explain technical concepts to technical and non-technical stakeholders
- Respond positively to changing priorities
- Work under pressure in fast-paced environments
- Use strong verbal and written communication skills
Additional Requirements
- Be available for occasional after-hours support when needed
- Travel for industry events, client and team meetings
- Have flexibility to adapt to changing business priorities
Benefits
- A friendly, supportive, and family-friendly working environment
- 27 holiday days per year + Bank Holidays
- UK-based remote-first working
- Health and Medical support
- Provision of high standard equipment
- Stakeholder pension

Weโre looking for a Principal Security Engineer with a passion for securing cloud environments and a proven history of leading complex security transformations. This is a hands-on, deeply technical role, not an advisory position, ideal for someone who thrives at the intersection of engineering and client engagement.
You'll use your expertise in cloud security, software security, and penetration testing to guide clients through high-impact security initiatives. A key focus of the role is conducting forensic investigations across cloud platforms (AWS, Azure, GCP), including containerized environments like Kubernetes.
In this role, you'll lead the design and implementation of modern security solutions, working directly with clients to assess needs and embed best practices across their teams. Youโll get your hands dirty configuring, maintaining, and remediating infrastructureโparticularly within Google Cloud or Microsoft Azureโincluding networks, firewalls, and web application firewalls.
If youโre looking to lead, build, and solve real-world security problems in the cloud, this role was built for you.
A Day in the Life of a Principal Security Engineer:
- Lead and execute security transformation initiatives for enterprise clients, focusing on cloud security, application security, and vulnerability management.
- Solid knowledge of operating systems, file systems, memory structures, and log analysis.
- Proficiency in scripting and automation (e.g., Python, PowerShell, Bash) to streamline investigations.
- Proficiency in forensic tools (e.g., EnCase, FTK) and evidence handling.
- Serve as a primary client-facing security expert, building strong relationships and effectively communicating complex technical concepts to both technical and non-technical stakeholders.
- Architect, design, and implement robust security solutions for cloud-native and traditional applications, with a strong emphasis on AWS, Azure, or GCP.
- Conduct in-depth security assessments, penetration tests, and code reviews to identify vulnerabilities and recommend remediation strategies.
- Develop and implement secure software development lifecycles (SSDLC), integrating security best practices throughout the entire development process.
- Provide expert guidance on OWASP Top 10 vulnerabilities, secure coding practices, and threat modeling.
- Drive the adoption of automated security testing tools and processes.
- The candidate will be available on occasional nights and weekends to support the Security Operations team and will be on-call in the event of any security incident.
- Mentor and provide technical leadership to other security engineers and client teams.
- Stay abreast of the latest security trends, threats, and technologies, continuously enhancing our service offerings.
What Youโll Need:
- Bachelorโs degree in Computer Science, Cyber Security, Risk Management, or a related field (Masterโs preferred).
- 10+ years of experience in information security, including securing cloud environments (Azure/GCP), application security, and security operations.
- Deep expertise in network and infrastructure security within major cloud platforms, including IAM, network configuration, and cloud-native security tools.
- Hands-on experience with vulnerability management, penetration testing, and common attack vectors; familiarity with SAST, DAST, and SCA tools.
- Strong understanding of the OWASP Top 10, secure coding principles, cryptography, and threat modeling.
Proven track record leading client-facing security projects and transformation initiatives. - Experience configuring and supporting SIEMs, managing security alerts, and writing custom scripts in PowerShell, Python, or Bash.
- Exceptional communication and interpersonal skills; able to influence and collaborate across technical and non-technical teams.
- Relevant certifications required: CISSP (required), CISM/CCSP/OSCP desirable; Azure or GCP certifications strongly preferred.
- Demonstrated ability to thrive in a dynamic, fast-paced, and client-focused environment.
Nice-to-Haves:
- Certifications such as CCSP, OSCP, CISM, or cloud-specific credentials (e.g., Google Cloud Security Engineer, Azure Security Engineer, AWS Security Specialty).
- Experience with Infrastructure-as-Code (IaC) tools like Terraform, CloudFormation, or ARM templates to automate security controls.
- Familiarity with container security and orchestration (Docker, Kubernetes).
- Knowledge of DevSecOps principles and integrating security into CI/CD pipelines.
The Perks of Working for Appspace:
For all our US based team members, we offer a variety of benefits from competitive salaries, medical, dental and vision coverage, disability coverage, employer paid life insurance, mental health resources, 401(k) plan and a fully paid parental leave program.
Additional perks include:
- Generous PTO
- Flexible work schedules
- Remote work opportunities
- Paid company holidays
- Appspace Quiet Fridays (No non-essential internal meetings scheduled)
- A casual dress work environment

Wallet in Telegram is a digital asset solution natively embedded into Telegramโs interface. Backed by The Open Platform, Wallet in Telegram gained 100M+ user accounts in 2024, and aims to make its solution available to all 1BN+ of Telegramโs users. Wallet in Telegram offers a dual-wallet experience with Crypto Wallet (a multi-chain wallet for trading and sending crypto to contacts) and TON Wallet (a self-custodial wallet with access to the TON ecosystem of dApps and tokens).
We are looking for an experienced Python Engineer to join our Blockchain team. In this role, you will work directly with blockchains. Your main responsibility will be to design and implement blockchain solutions that ensure secure, efficient, and scalable transactions for our users.
Responsibilities:
- Research, design, and develop new blockchain technologies using Python.
- Implement new features for existing blockchains.
- Write well-tested code with high test coverage.
- Optimize system performance to handle large volumes of data and users.
- Collaborate with cross-functional teams to deliver top-notch blockchain solutions.
Requirements:
- 3 years of experience working in crypto/blockchain development using Python or other programming languages.
- Strong software development background with knowledge of algorithms and data structures.
- Proficiency in writing efficient and secure code.
- Deep knowledge in at least one of the following blockchain ecosystems: TON, Ethereum, or Solana.
- B2+ Level English.
Nice to Have:
- Proficient in developing smart contracts being a plus.
- Solid understanding of cryptography and security principles in blockchain being a plus.
Why it is a fantastic opportunity:
- Our business is growing at an exponential scale.
- Non-bureaucratic management that focuses on results.
- Regular performance reviews to assess your progress.
- Remote setup with access to our hubs in Dubai, Yerevan, London and Belgrade.
- Compensation for medical expenses.
- Provision of necessary equipment.
- 20 working days of paid vacation annually.
- 11 days off per year.
- 14 days of paid sick leave to support your health and recovery when needed.
- Access to internal conferences, English courses and corporate events.

The team was created to support Deel engineering growth and build a platform for product teams, so they could ship business value faster. Deel is at a very unique position because we are big enough that we need the platform but we are young enough to not have it yet. There is a dedicated DevOps team and they take care of the infrastructure, while we work on the edge between DevOps and engineering enforcing standards and best practices, creating tooling, maintaining internal libraries, providing architectural guidance and owning some high-loaded core services, responding to production incidents when needed. Itโs 70% Engineering and 30% DevOps. We have a lot of freedom, but it comes with responsibility.
Who are we looking for?
- 5+ years of experience in engineering
- Strong node.js knowledge
- AWS or similar cloud experience
- Kubernetes, Helm and Docker knowledge
- Experience with Postgres/Mysql, RabbitMq/Nats/Kafka
- Strong system design and problem solving skills, we often deal with the โunknownโ
- Strong communication skills, we often need to orchestrate projects with 20+ teams
- You are hands-on troubleshooter
- You are ready for challenges
Extra brownie points if youโฆ
- Have experience building internal tooling: npm packages, frameworks
Total Rewards
Our workforce deserves fair and competitive pay that meets them where they are. With scalable benefits, rewards, and perks, our total rewards programs reflect our commitment to inclusivity and access for all.
Some things youโll enjoy
- Stock grant opportunities dependent on your role, employment status and location
- Additional perks and benefits based on your employment status and country
- The flexibility of remote work, including optional WeWork access

We are looking for a Data Engineer to join our BI Infrastructure team.
Responsibilities:
- Design reliable data pipelines
- Unify data from various sources, including in-game activity events and aggregated partner data
- Develop optimal data models for game and marketing analytics
- Handle data enrichment, transformation, and validation
- Take responsibility for data quality
Requirements:
- 3+ years of experience as a Data Engineer
- Understanding of mobile app metrics
- Strong skills in writing and optimizing complex SQL queries
- Hands-on experience with ETL/ELT systems
- Experience building data loaders
- Strong analytical skills and a data-driven mindset
Will be a plus:
- Experience with Google BigQuery, Looker Studio, or Apache Superset
- Familiarity with MMP platforms such as AppsFlyer, Adjust, etc.
- Experience working with ClickHouse
- Knowledge of Golang or Python
- Experience with tools like dbt or Cube
What we offer:
- Opportunity to work for ZiMAD, a US company with a diverse portfolio of global free-to-play (F2P) projects with a multi-million monthly user base
- Involvement in the entire product development cycle
- Career growth prospects within an international company
- Remote work opportunities
- Flexible working schedule
- Bonuses based on the achievement of KPIs and financial results of projects
- Paid conferences, training (including language courses), and workshops
- Opportunity to have sessions with psychologists to improve your mental health and well-being
- Participation in charity projects
Pure is a global dating app committed to bringing honesty and fun into the dating world. We believe that dating is more than just swiping โ itโs a delightful journey where everyone can discover something special, regardless of their preferences.
We're looking for a Senior iOS Engineer to join the team! You will be working on the current Pure app and our iOS SDK for the backend platform. At Pure, it's not just about rewriting old features - as our product is growing rapidly, we are constantly developing new features, so you wonโt get bored. This also means you will have an impact on our code base and get to bring new ideas to the table!
What are we looking for?
- 5+ years of experience with iOS app development.
- Strong knowledge of Swift - we use iOS 15+ with fancy modern stuff ;)
- Experience working with VIPER + Redux.
- Experience with TDD & unit testing.
- Working with manual layouts.
- Working with SwiftUI.
- Strong knowledge of Git.
What would be a plus? (we can always dream)
- Experience with audio and video calls.
- Messenger development experience.
- Experience with embedded shopping.
- Experience with dating apps.
- Experience with Kotlin Multiplatform
What will you be doing?
- Developing high-quality features on iOS using Swift.
- Collaborating with the team to ensure the app meets user needs and business objectives.
- Continuously seeking opportunities to improve application performance and code stability.
- Ensuring the performance, quality, and app responsiveness.
- Refactor code to make it easier to maintain and extend.
What do we offer?
- Remote work.
- A competitive salary that matches our expectations and your level of experience.
- Yearly performance bonus.
- An opportunity to work on a product in the growth stage.
- Yearly education budget.
- A multinational and diverse workplace.
At Pure, we are anything but boring. Join us on a mission to make dating more exciting for everyone!
P.S. Itโs a plus if you can include a link to any source code you think might be worth pursuing - it could be an OpenSource project, a pull request, or simply an archive of your work.

We are seeking a Lead Flutter Engineer, to drive the development of a next-generation Web3-native mobile application. You will define the technical vision, design the architecture, and mentor engineers while ensuring the product is secure, scalable, and user-friendly. This role blends hands-on coding with architectural ownership, leadership, and close collaboration with product and design teams.
Key Responsibilities:
- Architect and own the system design, technical roadmap, and overall delivery of the app.
- Lead and mentor a cross-functional engineering squad, setting coding standards and best practices.
- Contribute to development in Flutter/Dart while guiding quality and scalability.
- Design modular systems with theming, multi-language, and OTA update capabilities.
- Oversee integrations with backend services, blockchain protocols, and secure key management.
- Ensure security, compliance, and high performance across all features.
- Partner with product and design to align technical execution with strategic goals.
- Translate analytics and user feedback into iterative improvements and innovation.
About You:
- 7+ years of software engineering experience, including 2+ years in a Flutter leadership or architect role.
- Strong expertise in Flutter/Dart, with a proven track record of shipping consumer-grade mobile apps.
- Experience designing and scaling secure mobile systems (biometrics, encrypted storage, recovery flows).
- Solid understanding of blockchain, Web3, DeFi, or fintech systems.
- Skilled in modular architecture and resilient system design.
- Excellent communicator with experience mentoring and growing engineering teams.
- Passionate about decentralization, security, and building products that empower users globally.

We are actively implementing AI into game development. To speed up this process, we have created a cross-project team. It functions as an internal center of expertise, advising teams, selecting solutions, and integrating tools into workflows.
Our goal is to bring generative AI into the art pipeline, helping artists scale creativity while maintaining a consistent visual style across a huge volume of content.
We are currently looking for a Generative AI / ML Engineer who will work closely with the production producer to train and advance the models for the art style stabilisation and bringing the quality to a whole new level (backgrounds, characters, match-3, and UI elements).
This role requires relocation from Russia and Belarus to one of our offices or remote work from other countries (except Russia and Belarus). Find out more here.
Tasks
- Training generative models in Playrix's corporate art style โ fine-tuning models (LoRA, DreamBooth), LoRA training.
- Creating and optimizing prompts to achieve the desired artistic result.
- Working with ComfyUI and other AI tools to build convenient pipelines in production. .
- Writing guidelines and training artists in AI tools.
- Experimenting with new approaches and training strategies to achieve the ideal style.
Requirements
- 5+ years of experience as machine learning engineer.
- 3+ years of experience in working with Generative AI/Deep Learning (PyTorch, JAX, TensorFlow).
- Experience with diffusion models (Stable Diffusion, FLUX, Imagen, Qwen).
- Experience with generative models (fine-tuning, LoRA, DreamBooth).
- Experience with ControlNet, T2I-Adapter, Style Transfer tools.
- Understand the principles of dataset preparation and balancing.
- Experienced in inference customization and image generation.
- Fluent Russian language.
Our Perks
Flexibility at work
- For most positions we offer a flexible schedule, and employees can work from anywhere in the world (except for the Russian Federation and the Republic of Belarus). You can do your work however and wherever you like โ we only evaluate your results.
Caring for health and well-being
- We provide voluntary health insurance for employees and their children, and reimburse online sessions with a psychologist.
- We offer fully paid vacation days and sick leave. In certain circumstances, you can request additional days off.
- We support leading a healthy lifestyle and reimburse the cost of gym memberships and fitness app subscriptions.
Professional development and education
- We pay for participation in specialized conferences and courses and hold our own internal conferences.
- We offer discounts on English language courses and courses for the languages of the countries in which the company operates.
Events and merch
- We regularly hold offline events like team meetings, big corporate parties, and informal office parties.
- We also regularly organize fun competitions, quizzes, hackathons, and online fitness challenges.
- We have a merch store with an internal currency you can use to buy unique gifts. We give out this currency as a gift for significant dates, and you can earn more by participating in events and company activities.
Work Format
Remote or from one of the companyโs offices.

Ciklum is looking for a Middle Backend Engineer to join our team full-time in Poland.
We are a custom product engineering company that supports both multinational organizations and scaling startups to solve their most complex business challenges. With a global team of over 4,000 highly skilled developers, consultants, analysts and product owners, we engineer technology that redefines industries and shapes the way people live.
About the role:โ
As a Middle Backend Engineer, become a part of a cross-functional development team engineering experiences of tomorrow.
Responsibilities:
- Develop and maintain secure, scalable APIs and services on AWS using TypeScript.
- Write clean, efficient, and testable code for both backend and frontend applications.
- Collaborate closely with senior engineers, product managers, and designers to translate requirements into technical solutions.
- Implement security best practices in your code to protect user data and ensure platform integrity.
- Contribute to the entire development lifecycle, from planning and implementation to deployment and maintenance.
- Troubleshoot, debug, and upgrade existing software to enhance functionality and performance.
- Participate actively in code reviews, providing and receiving constructive feedback to maintain a high-quality codebase.
Requirements:
- 3+ years of professional experience in backend development.
- Strong proficiency with TypeScript and Node.js.
- Experience building and consuming RESTful or GraphQL APIs.
- Experience with core AWS services (e.g., Lambda, SQS, API Gateway, S3).
- Familiarity with containerization using Docker.
- Experience with NoSQL (e.g., MongoDB, DynamoDB) and/or relational (e.g., PostgreSQL) databases.
- A good understanding of web security principles and best practices.
- Strong problem-solving skills and a passion for writing quality code.
- Upper-intermediate or higher level of spoken and written English.
Desirable:
- Hands-on expertise in React.
- Familiarity with CI/CD practices and tools (e.g., Jenkins, GitLab CI, GitHub Actions).
- Experience with monitoring and logging tools (e.g., CloudWatch, Datadog).
- Working experience with .Net or Python is a plus.
- Experience with GCP and services like BigQuery.
What`s in it for you?
- Strong community: Work alongside top professionals in a friendly, open-door environment
- Growth focus: Take on large-scale projects with a global impact and expand your expertise
- Tailored learning: Boost your skills with internal events (meetups, conferences, workshops), Udemy access, language courses, and company-paid certifications
- Endless opportunities: Explore diverse domains through internal mobility, finding the best fit to gain hands-on experience with cutting-edge technologies
- Flexibility: Enjoy flexibility โ full remote working possibilities
- Care: Weโve got you covered with company-paid medical insurance, mental health support, and financial & legal consultations

We are currently looking for a Middle Python Engineer for our flagship project, Happy Color.
Key Responsibilities:
Data/Workflow:
- Develop and maintain DAGs in Airflow: sensors, custom operators, retries/SLAs, dependent pipelines.
- Integrate with external APIs/databases, ensure reliable error handling, idempotency, scheduling, and manage secrets.
Automation:
- Create scripts and services in Python (CLI, bots, utilities) to automate manual processes within teams.
- Develop small internal services/adapters (FastAPI/Flask).
Observability and Stability:
- Implement metrics/logs/traces using Prometheus/OpenTelemetry, Sentry; set up alerts and SLO/SLI.
- Create dashboards in Grafana: data sources, variables, alerts, business and technical metrics.
- Perform synthetic checks (health/e2e) and establish regression gates in CI.
AI and Prompts: - Design and iterate prompts (OpenAI), manage versions, and conduct experiments.
- Develop small pipelines/chains (LangChain/custom wrappers), handle retries, caching, and control costs and quality.
- Implement basic guardrails: validations, restrictions, data privacy.
Quality and Processes: - Manage CI/CD using GitLab CI, handle artifacts, environment configurations, and test infrastructure.
- Maintain documentation, manage incident workflows, and conduct postmortems.
Requirements:
- 2+ years of commercial experience as a Python engineer or QA Automation.
- Proficient in Python: standard library, requests/asyncio, type hinting, packaging (poetry/pip), pytest.
- 1+ year of experience with Airflow: DAGs, operators/sensors, dependencies, retries, variables/connections, task monitoring.
- SQL proficiency in writing efficient queries; experience with PostgreSQL/MySQL; basic knowledge of Redis is a plus.
- Monitoring experience: Grafana (dashboards/variables/alerts), Prometheus/Alertmanager, Sentry.
- Process automation: integrating with HTTP APIs, cron/orchestration, small utilities and bots.
- Basic skills with AI providers: OpenAI/Anthropic, prompt engineering, quality/cost assessment.
- Engineering practices: Docker, Git, code reviews, clean code, documentation.
- Communication skills: ability to gather requirements, decompose tasks, and explain solutions.
Preferred Qualifications:
- Experience with FastAPI.
- Knowledge of OpenTelemetry, Loki, Grafana Alerting/Contact Points/Annotations.
- QA expertise: Playwright for synthetic testing, contract tests (OpenAPI/Pact).
- Load testing experience: k6.
- Familiarity with cloud platforms: AWS, basic Helm.
- Experience with feature flags.
What We Offer:
- Competitive salary and benefits package.
- Opportunity to work with a talented and passionate team in a creative and dynamic environment.
- Flexible working hours and remote/office work options.
- Career growth and professional development opportunities.
- A fun and inclusive company culture that celebrates diversity and creativity.

Ruby Labs is looking for a Junior Golang Developer who will be responsible for building scalable and high-performing backend services. Develop, test, maintain, and improve our billing system. You will be a part of a cross-functional team, including engineers and product managers, focused on delivering results in a consistent, sustainable way. The successful candidate will have a passion for innovation, staying up-to-date with emerging technologies, and excellent communication and collaboration skills to work in a cross-functional team in a remote environment.
Key Responsibilities
- Software Development: Participate in the solution development and maintenance of high-performance backend services and applications using Golang.
- Microservices Architecture: Architect, implement, and optimize microservices-based applications, ensuring scalability, reliability, and maintainability.
- Container Orchestration: Collaborate with the DevOps team to deploy and manage Golang applications in Kubernetes clusters using Helm for efficient package management.
- Database Management: Design and optimize database schemas, queries, and transactions, specifically using Postgres. Ensure data integrity, performance, and scalability. Additionally, use Redis to improve application performance.
- Billing System: Develop and enhance the billing system to ensure accurate and timely processing of financial transactions.
- Code Review: Conduct code reviews to ensure code quality, best practices, and adherence to coding standards.
- Collaboration: Collaborate within the cross-functional team, including DevOps, Backend and Frontend developers, QA and product management to understand requirements and deliver high-quality software solutions. Documentation: Maintain comprehensive documentation for code, architecture, and processes to facilitate knowledge transfer and onboarding of team members.
- Testing: Ensure decent Unit test coverage of the applications and participate in keeping the autotest suite up-to-date.
Qualifications
- Experience: Minimum of 1 year of professional experience in development as a Golang developer, with a proven track record of delivering scalable and robust solutions.
- Golang: Expertise in Golang, with a deep understanding of its concurrency model, frameworks, and best practices.
- Microservices: Experience in designing, developing, and maintaining microservices architectures.
- Database Skills: Proficient in designing and optimizing databases, particularly with Postgres.
- Collaboration: Excellent communication skills and the ability to work collaboratively in a team environment.
- Problem-Solving: Strong problem-solving skills and the ability to think critically about complex technical challenges.
Nice to have
- Billing Systems: Previous involvement in the development and maintenance of billing systems.
- Cloud solutions: Experience using AWS services
- Database Skills: Experience using NoSQL databases
Location
Ruby Labs operates within the CET (Central European Time) zone. Applicants from any country are welcome to apply for the position as long as they are located within approximately ยฑ 4 hours of CET. This ensures optimal collaboration and communication during working hours.
Benefits
Discover the perks of being part of our vibrant team! We offer:
- Remote Work Environment: Embrace the freedom to work from anywhere, anytime, promoting a healthy work-life balance.
- Unlimited PTO: Enjoy unlimited paid time off to recharge and prioritize your well-being, without counting days.
- Paid National Holidays: Celebrate and relax on national holidays with paid time off to unwind and recharge.
- Company-provided MacBook: Experience seamless productivity with top-notch Apple MacBooks provided to all employees who need them.
- Flexible Independent Contractor Agreement: Unlock the benefits of flexibility, autonomy, and entrepreneurial opportunities. Benefit from tax advantages, networking opportunities, reduced employment obligations, and the freedom to work from anywhere.
Be part of our fast-growing team and seize this excellent opportunity for personal and professional growth!
Interview Process
After submitting your application, we conduct a thorough review which typically takes 3 to 5 days, but may occasionally take longer due to the volume of applications received. If we see a potential fit, we proceed with the following steps:
- Recruiter Screening (40 minutes)
- Technical Interview (90 minutes)
- Final Interview (60 minutes)

Right now we are looking for a talented iOS Developer who will join the Innovation Department โ where new product ideas are born, tested, and shipped fast.
Push the pace of innovation and build a future of a healthier world with us!
Key Responsibilities:
- Work on the frontlines of product development โ turning raw ideas into functional prototypes and MVPs with real users in mind;
- Take full ownership of features from concept to code โ often without rigid specs or long planning cycles;
- Create beautiful, exciting UI that feels alive โ not just functional, but emotionally engaging;
- Explore new technologies, APIs, interactions โ and build things that havenโt been done before;
- Collaborate with product, design, and research โ but without bureaucracy or slow loops;
- Move fast: this role is not about endless โpixel pushingโ or tweaking paddings for weeks โ itโs about designing bold, gorgeous, high-impact experiences that matter.
What weโre looking for:
- You genuinely love iOS โ and have a passion for beautiful interfaces, smooth animations, delightful interactions;
- Youโve shipped your own apps to the App Store (or built something end-to-end);
- You enjoy hackathons, side-projects, or just building cool stuff for the sake of it;
- You thrive when given freedom and trust โ and youโre excited to shape the future of the product, not just maintain the past;
- You move fast, think like a maker, and see constraints as fuel, not friction.
Our current tech stack:
- Swift
- SwiftUI
- GRDB
- PinLayout
Weโve recently migrated to SwiftUI and async/await as part of our modernization efforts. Our minimum deployment target is iOS 17.5, so youโll get to work with the latest APIs without legacy constraints.
Perks and Benefits:
- Open-minded teams, a welcoming and inclusive company culture, plus the opportunity to make a real difference with a game-changing health tech product;
- A competitive salary package based on your unique expertise, skillset, and impact on the product plus stock options;
- In-office or hybrid work (3 days in office) opportunities;
- Relocation package (Cyprus) - optional;
- The equipment whatever you need to be happy and productive;
- A premium SIMPLE subscription;
- 21 days annual leave, plus bank holidays (those observed where you live);
- Flexible hours. We focus on your results, not how long you spend at your desk.

Our business is expanding, and we seek a Senior Rendering Engineer to help us improve Altium products.
A Day in the Life of Our Senior Rendering Engineer:
- Innovative Code Development: Design, develop, and optimize rendering systems for real-time applications.
- Algorithm Mastery: Develop cutting-edge algorithms and specifications that form the backbone of our software solutions.
- Ongoing Support: Provide invaluable support for existing source code across a spectrum of products, ensuring their continued success in the market.
Who Weโre Looking For:
- Seasoned Expertise: Min. 5 years experience in software development.
- Language Proficiency: Strong C++, C#, and shader languages like HLSL and GLSL.
- Experience with rendering APIs: DirectX 11/12 and OpenGL/WebGL.
- Rendering: Deep understanding of real-time rendering techniques and GPU architectures.
- Strong mathematical skills: Linear algebra, vector math, and transformations.
- Modern Techniques: Demonstrate your proficiency in modern programming techniques and patterns, showcasing your adaptability and innovation.
- Optimization Acumen: Experience with performance profiling and debugging tools like PIX, NSight, RenderDoc.
- Cross-Platform Expertise: Showcase your capability in writing efficient, compact, and cross-platform code, ensuring our solutions are accessible and versatile.
- Algorithmic Fluency: Exhibit a deep understanding of algorithms and data structures, with hands-on experience in complexity analysis.
- Modular Design: Highlight your expertise in designing and implementing modular, easily extensible solutions that pave the way for future growth and development.
- Communication Skills: Ability to effectively communicate in English, both written and verbal, within a professional environment, ensuring seamless collaboration and understanding.
Benefits
- Private medical insurance ย
- Group life insurance
- Contributions to your Kafeteria MyBenefit account
- nilo.health, mental health and wellbeing support
- Professional development support
- Performance bonuses ย
- Home internet allowance
- Flexible working arrangements available based on role and location
- Free lunch on Tuesdays, snacks and drinks
- Free Parking

Responsibilities
- Create services from scratch and support existing ones;
- Work closely with core backend team and RND department to build ML solutions into production;
- Develop HL architecture;
- Supervise the process of delivering the feature to the user;
- Work closely with gRPC;
- Develop data storage schemas;
- Participate in creating a backend culture in the company.
Requirements
- Experience in Python3 development from 3 years;
- Experience and understanding of synchronization principles in asynchronous programming: multithreading, multiprocessing, asyncio;
- Experience with PostgreSQL or other RDBMS for 2 years or more;
- Ability to write and raw SQL query and using ORM. Understanding of the need to use one or another type of index in different situations;
- Experience creating RPC API/REST API;
- Experience with Kafka/RabbitMQ or other message brokers;
- Experience with FastAPI/Django/Flask or other Python web frameworks.
How we hire:
- HR interview
- Tech interview
- Final interview ะกะขะ
- Reference check
Conditions:
- Professional development โ paid training and courses, online / offline lectures, workshops and trainings. Our employees take part in all major IT meetups;
- Adaptation โ qualitative onboarding, we help to quickly and smoothly solve all problems. regularly collect feedback throughout the trial period;
- Career development โ Review is conducted every 6 months, we monitor results and help improve performance;
- Balance between work and personal life โ ability to conveniently build your work schedule, take vacations and days o๏ฌ without a bunch of approvals and bureaucracy;
- Health โ extended voluntary health insurance (on the territory of Montenegro);
- Office space โ a cool office in Montenegro, with comfortable workplaces and lounge areas;
- Relocation โ we o๏ฌer a full package of documents for those who are ready to move to Montenegro, and we help with obtaining a residence permit;
- Prequel+ โ premium access to the entire Prequel product.

We are looking for a skilled Blockchain Developer to build and enhance the TON smart contracts for Doggverse โ a core infrastructure product enabling secure and seamless interaction between wallets and decentralized applications in the TON ecosystem. With your expertise, we aim to scale the protocol, improve security and performance, and deliver a reliable experience to millions of users worldwide.
Responsibilities:
- Design, implement, and ship TON smart contracts with clean APIs and secure distribution.
- Build core metaverse flows: NFT minting, shared land purchasing, send/receive, and stable dApp connections (TON Connect).
- Deliver assets & history: balances, tokens/jettons, NFTs, and accurate transaction previews/emulation.
- Ensure security, performance, and reliability; maintain robust automated tests and sample integration apps.
Requirements:
- 5+ years blockchain development with FunC/Tact or similar (Solidity experience a plus).
- Strong networking & concurrency, long-lived connections, retry/backoff; background processes mastery.
- Offline-first persistence: databases, schema/versioning, data caching.
- Security fundamentals: secure key handling, hardware-backed keys.
- Performance & quality: profiling, unit/integration tests, CI.
- Clear technical communication in English.
Nice-to-have:
- Web3/TON exposure: mnemonics/derivation, signing, tokens/NFTs, TON Connect/WalletConnect, TonCenter v3.
- Event-driven/reliable messaging: queues, retries, idempotency, offline event stores.
- Auth UX: Biometrics, passkeys/FIDO2, secure session design.
- Telemetry/analytics for smart contracts; open-source contributions.
- Deep integration with TON mini apps.
Why it is a fantastic opportunity:
- Our business is growing at an exponential scale.
- Non-bureaucratic management that focuses on results.
- Regular performance reviews to assess your progress.
- Remote setup with access to our hubs if needed.
- Compensation for medical expenses.
- Provision of necessary equipment.
- 20 working days of paid vacation annually.
- 11 days off per year.
- 14 days of paid sick leave to support your health and recovery when needed.
- Access to internal conferences, English courses, and corporate events.
- Payment starts after Christmas (December 2025), with potential $DOGG token incentives.

We are currently looking for Senior Backend Developers to join the Payments team. It will be necessary to develop a unified payment service (Payments API) that is used for processing payments across all Joom Group projects.
Tech stack: Go, MongoDB, AWS, Kafka, Spark (Scala), gRPC
Responsibilities
- Come up with architecture
- Program in Go (Go is not a must for us; it is more important for a successful candidate to have solid algorithm skills, fundamental technical knowledge, and great coding skills in general)
- Provide fault tolerance for coded services in an AWS environment
- Be prepared for a constant increase of processed and stored data loads and volumes
- Participate in new feature and product development discussions
Requirements
- Confident knowledge of any of the programming languages: Go/Java/Kotlin/C ++/Python/Scala
- Complex project development experience
- Excellent algorithmic training
- Experience in development for Linux / Unix
Preferred
- Experience in people management, leading and coaching others developers
- Experience with highload
- Experience with MongoDB
- Experience with Kubernetes
We offer
- Compensation package: base salary and performance-based bonuses
- Office-first: flexible hours with a possibility to work remotely 52 days per year
- Care & Wellbeing: health insurance (including dental care) for employees and their children, daily meal allowance, and 100% paid sick leave
- Relocation Support: full assistance for a smooth relocation for the employees and their family
- Team & Growth: collaboration with colleagues across Portugal, Brazil, Latvia and China, with opportunities for promotions, professional trainings, and English & Portuguese courses
- Community & Engagement: annual team building activities, knowledge-sharing workshops, and a strong sense of team work

As an Android Engineer at N26, you will be encouraged to embrace the latest technological updates and given a platform to work on complex, interesting problems on a daily basis.In this role, you will:
- Collaborate closely with your team on architecting new features and seeing them through to completion
- Design, develop, test, deploy and maintain software in a thriving environment
- Stay up to date with the latest trends in technology and you are not afraid to propose some findings during our Get Stuff Done Days
- Work within your cross-functional team to uphold the highest technical standards right across the product
What you need to be successful:
- Deep knowledge of Kotlin
- Thorough experience with the Android Open Source Platform and Material Design principles
- Code quality tingles your senses - you can see, feel and smell the difference between good and bad architecture
- Experience with Model-View-ViewModel architectural patterns
- Experience with Reactive programming - Kotlin Flows and Coroutines
- Able to build software with a focus on testability - Test/Behaviour Driven Development, Dependency Injection
- You have previous experience around CI/CD infrastructure for Mobile products
- Experience in building components that act as a foundation for your fellow Engineers
- Outstanding communication skills, and the ability to drive iterations to improve even further your work
Nice to have:
- Active participant/speaker at meet-ups and conferences in the Android community
Traits:
- Actively help yourself (and others) be successful
- Continuously learn and challenge the status quo
- Think globally, act locally
- Strong bias for action
- Give and receive open, direct and timely feedback
Whatโs in it for you:
- Accelerate your career growth by joining one of Europeโs 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.
- Come together with your team in the office for a dedicated day of teamwork each week, plus another day of your choice, and enjoy the flexibility of remote work the rest of the time. Some roles may require additional in-office presence.
- 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. ย
- Additional day of annual leave for each year of service. ย
- A high degree of autonomy and access to cutting edge technologies - all while working with a friendly team of peers of diverse nationalities, life experiences and backgrounds.
- A relocation package with visa support for those who need it.