Senior Full Stack & AI Developer

🏢 Summary: B2B opportunity for an AI Technical Lead to design and deliver production-ready AI solutions, combining modern web technologies with advanced AI architectures such as RAG and multi-agent systems. The role involves leading AI projects end-to-end, defining system architecture, and guiding teams in building scalable, high-quality AI-driven products. Monthly compensation ranges from 20,000 to 25,000 with paid days off. 🗂️ Requirements: 5+ years commercial software development experience, Minimum 2 years experience with AI projects in production, Strong experience with TypeScript, Strong experience with Node.js, Strong experience with React, Strong experience with Next.js, Experience leading AI projects end-to-end, Knowledge of RAG architecture, Experience with vector databases, Experience with LLM integrations, Experience with multi-agent frameworks, Experience with workflow orchestration, Experience with validation and observability, Knowledge of AI models and providers, Experience with API management and cost optimisation, Proficiency in Python, Experience with PyTorch, TensorFlow or scikit-learn, Ability to define system architecture, Fluent English (B2+), Fluent Polish (B2+) 📃 Skills: TypeScript, Node.js, React, Next.js, Python, PyTorch, TensorFlow, scikit-learn, RAG, LLM, Pinecone, Chroma, MongoDB, Postgres, Multi-agent, Orchestration, Validation, Observability, API, ReactNative, Meteor, GraphQL, Apollo 🏢 Description: About us At Vazco, we don’t just follow technology trends – we redefine what’s possible with AI. Every project we take on is a chance to build meaningful digital experiences powered by smart, scalable AI solutions. Whether we’re automating complex processes, enhancing user journeys, or enabling data-driven decisions — we’re here to make innovation real. Excited about solving tough challenges for startups, scale-ups, and enterprises around the world? Curious about how AI can drive real business value, not just hype? That’s the space we operate in. You won’t have to choose between commercial impact and meaningful tech — our portfolio includes Open Source projects, nonprofit work, and deep partnerships with forward-thinking companies. Apart from that, you will find yourself in an authentic and open company culture. Our non-hierarchical structure means minimal management and transparent communication with everyone (including the CEO). Now, let’s see what else makes joining our Crew so exciting! ⛵ About your project/work As an AI Technical Lead at Vazco, you’ll work with a team building real, production-ready agentic AI systems and LLM-powered applications. You’ll keep growing your skills in areas like multi-agent architectures, orchestration, evaluation, and modern AI engineering practices. You’ll work closely with AI Engineers, AI-UX Designers, QA Specialists, and Product Managers who care about doing solid technical work and shipping things that actually matter . On top of that, you’ll have a real impact on how the company works, how we shape our methodology and offer, and you’ll get to meet and collaborate with interesting people from the industry. You meet all our criteria if you have: 5+ years of commercial experience, including at least 2 years on AI-based projects in production. Strong background in TypeScript , Node.js , React , and Next.js . Proven experience leading AI projects end to end, from scoping and estimation to production rollout. Solid understanding of RAG architecture, vector databases, and LLM integrations. Experience with multi-agent frameworks , workflow orchestration, validation, and observability . Familiarity with textbots, voicebots, image/video generation, avatars, and automation systems. Strong knowledge of AI models and providers, including cost optimisation and API management. Good command of Python and libraries such as PyTorch, TensorFlow, or scikit-learn. Strong client communication skills , with the ability to define architecture and guide the team. Fluent written and spoken English and Polish , at least B2 level. Strong understanding of prompt engineering, tool usage, reasoning control, context management, and hallucination mitigation . Experience with advanced LLM patterns, including function/tool calling, structured outputs, MCP workflows, and agentic orchestration . Understanding of AI evaluation methods and prompt optimisation workflows. Nice-to-haves We would be absolutely astonished* if you had: (* don't worry, it's okay to learn these skills later) Experience with React Native, Meteor, GraphQL, Apollo . Background in startup or agency environments. Experience with AI security, red teaming, or open-source contributions. Involvement in tech communities. Your responsibilities will include Designing, leading, and implementing production-ready, AI-driven solutions, including multi-agent architectures and RAG-based systems. Conducting technical discovery and estimation sessions with clients — translating requirements into architecture and implementation plans. Advising product and tech teams on AI strategy, tool selection, and long-term scalability. Ensuring technical excellence, code quality, and mentoring team members. Supporting the adoption of AI-UX and agentic design principles across products. Monitoring the performance and resilience of deployed systems to maintain quality over time. What success looks like after 6 months Led 1-2 agentic projects end to end, from discovery through production launch. Established strong architecture standards for RAG and agentic systems. Mentored 3-5 engineers and helped raise the team’s technical bar. Improved production systems by reducing hallucinations, latency, and infrastructure costs. Perks & Benefits Team-building & Company Events - After a day of focused work, there's nothing better than having a much-deserved mental break from responsibilities. Even better when it involves your pals! Be it a go-kart race with your team, a chill session of board games , or a couple of days in Prague - we do whatever fits our fancy. 🕺 Flexible working hours - Flexible working hours are not about being able to start your work within a specific timeframe. It's about maintaining the work-life balance you deserve . We have no strict "office hours" and embrace your early bird or night owl lifestyle. When you need to take a pause or manage your affairs, it's fine by us. 📲 Training budget - Whether it comes to AWS, Domain-Driven Development, Public Speaking training, and many more, we can match you with the best tutors 🧑‍🎓. Show us the direction you'd like to grow in, and we'll go above and beyond to meet your expectations. Personal branding - Build your true Pro status through blogging & social media activity as a company ambassador, your speeches at various conferences and meetups , hosting workshops , and participating in other exciting initiatives. Do it all with our backup. 🤝

🏢 Summary: Role combining product management, business analysis, and delivery coordination for software projects, with ownership of product vision, client collaboration, and Agile processes across the full development lifecycle. Focused on translating business goals into actionable plans and driving AI-driven product initiatives. 🗂️ Requirements: Minimum 3 years of experience in IT in Project Management, Product Owner, Product Manager, or Business Analyst role, Hands-on experience delivering software solutions from design to delivery, Experience across product development lifecycle with coordination or leadership responsibilities, Practical knowledge of Agile software development, Experience facilitating workshops such as Design Sprint or Discovery, Ability to work with data and metrics for decision-making, Experience adapting project workflows to changing tools and team dynamics, Fluent English (B2 or higher), Experience using AI tools in daily work 📃 Skills: Agile, Scrum, Jira, ChatGPT, Claude, Perplexity, NotebookLM, AI, KPIs, ROI 🏢 Description: Join Our Journey at Vazco! ⛵ At Vazco, we build products that deliver real value - not just software. We combine product thinking with technology to create scalable, AI-driven solutions for startups, scale-ups, and enterprises. We stay close to both business goals and user needs, working across the full product lifecycle - from discovery to delivery. Our non-hierarchical culture means open communication, real ownership, and space to influence how we work. Now, let’s see what else makes joining our Crew so exciting! ⛵ About your future role As a Product & Delivery Specialist, you’ll work at the intersection of product, delivery, and client collaboration. This is a role for someone who wants to shape decisions - not just coordinate execution. You’ll be supported by an experienced PM team, while gradually taking ownership of your own areas. Depending on the project, you’ll move between Business Analysis, Product Management, and Scrum facilitation. Working across different projects, you’ll gain exposure to diverse challenges, take end-to-end ownership, and continuously grow - both in delivery and product thinking. Your responsibilities Support clients in defining the product vision and strategy, and ensure it's clearly communicated within the team. Help translate business goals into actionable plans and measurable KPIs. Work with project budgets and support efficient resource management. Facilitate workshops and discovery sessions, driving alignment on product direction between the team and client. Define stakeholder needs and manage expectations in line with the product strategy. Conduct market and competitive analysis to inform product decisions. Collaborate with the team to assign tasks and resolve challenges effectively. Work with subcontractors and partners to ensure high-quality delivery. Develop your understanding of ROI and learn to communicate the business value of delivered work to clients. Are we a match? At least 3 years of experience in IT as a project management or related role (e.g. Product Owner, Product Manager, Business Analyst). Hands-on experience working on software solutions - from design through delivery. Exposure to different stages of the product development lifecycle, with some experience in coordinating or leading parts of it. Experience in reviewing and adapting project workflows in response to changing tools, team dynamics, or delivery challenges Experience in reviewing and adapting project workflows in response to changing tools, team dynamics, or delivery challenges A solid understanding of Agile software development (both theory and practice). Experience contributing to or facilitating workshops such as Design Sprint or Discovery phases. Ability to work with data and metrics to support decision-making, and understanding of how to communicate business value to stakeholders. Strong interpersonal and communication skills. Fluent English (B2 or higher) - you'll collaborate daily with clients from all over the world. Strong self-organization and accountability - you take ownership of your actions and outcomes. Confidence in expressing opinions and negotiation skills. Experience using AI tools (e.g. ChatGPT, Claude, Perplexity, NotebookLM) in day-to-day work, and a strong willingness to work with AI-driven products. Nice to have Exposure to projects involving AI solutions. Experience in working with Jira . A certificate to prove your Agile/Scrum skills. Other Project Management methodologies . Perks & Benefits Team-building & Company Events - After a day of focused work, there's nothing better than having a much-deserved mental break from responsibilities. Even better when it involves your pals! Be it a go-kart race with your team, a chill session of board games , or a couple of days in Prague - we do whatever fits our fancy. 🕺 Flexible working hours - Flexible working hours are not about being able to start your work within a specific timeframe. It's about maintaining the work-life balance you deserve . We have no strict "office hours" and embrace your early bird or night owl lifestyle. When you need to take a pause or manage your affairs, it's fine by us. However, we expect you to deliver the work on time and stay responsive on Slack if your colleagues need you (11-15 p.m.). 📲 Training budget - Whether it comes to AWS, Domain-Driven Development, Public Speaking training, and many more, we can match you with the best tutors 🧑‍🎓. Show us the direction you'd like to grow in, and we'll go above and beyond to meet your expectations. Personal branding - Build your true Pro status through blogging & social media activity as a company ambassador, your speeches at various conferences and meetups , hosting workshops , and participating in other exciting initiatives. Do it all with our backup. 🤝 Turquoise culture - you’ll have real influence over the shape of your role, a clear path for growth, and a meaningful voice in how the whole company evolves. We treat your CV as a starting point - not the final word. What matters most to us is how you think, solve problems, and approach real challenges, not just what’s written on paper. That’s why our process begins with a short recruitment task. It’s a chance for you to show your skills in practice and for us to better understand how you work.

🏢 Summary: Senior Full Stack Developer role for an international product team focused on building scalable applications using TypeScript, React, Node.js, PostgreSQL, and Kafka. The contract is remote, B2B, initially for 6 months with possible extension, and includes collaboration in an agile international environment with AI-powered development tools. 🗂️ Requirements: 8+ years of commercial software development experience, Strong TypeScript experience, Experience with React, Experience with Node.js, Experience with NestJS, Knowledge of PostgreSQL, Knowledge of REST APIs, Knowledge of Kafka, Experience building scalable systems, Daily use of AI coding tools, English level B2+/C1 📃 Skills: TypeScript, React, Node.js, NestJS, PostgreSQL, REST, Kafka, Claude, Cursor, Codex, Copilot 🏢 Description: co.brick talents — powered by AI, powered by people. Senior Full Stack Developer (TypeScript / React / Node.js) Location: Remote Contract: B2B Rate: Up to 150–160 PLN/hour Duration: 6 months with a strong possibility of extension Start: ASAP About the project We are looking for an experienced Senior Full Stack Developer to join an international product development team. You will work on building and enhancing scalable software solutions in a modern technology stack, collaborating with experienced engineers in an agile environment. Your responsibilities Design, develop, and maintain scalable full stack applications. Build high-quality backend services and modern frontend solutions. Develop and integrate REST APIs. Work with PostgreSQL and Kafka-based architectures. Collaborate with cross-functional, international teams. Apply AI-powered coding tools to improve development efficiency and code quality. Requirements 8+ years of commercial software development experience. Strong experience with TypeScript on both the frontend and backend. Hands-on experience with React and Node.js/NestJS . Solid knowledge of PostgreSQL , REST APIs , and Kafka . Experience designing and building scalable systems or software products. Daily use of AI coding tools such as Claude Code, Cursor, Codex, GitHub Copilot , or similar ( must have ). Very good English communication skills ( B2+/C1 , must have ). Nice to have Experience building SaaS products. Experience developing on-premise software solutions. Recruitment process The recruitment process includes a technical assignment (approximately 5 hours) . During the task, you are welcome and encouraged to use AI coding tools , as we value modern software development practices.

🏢 Summary: Senior Full Stack Java Developer role focused on building secure, scalable enterprise applications in the fintech and payments domain. The position covers full-stack development, AI-assisted engineering, and CI/CD automation within a modern microservices architecture. The role involves end-to-end delivery from design to deployment in a hybrid work model. 🗂️ Requirements: 5+ years commercial experience with Java, Strong expertise in SpringBoot, Strong expertise in SpringSecurity, Strong expertise in Hibernate and JPA, Experience building REST APIs, Experience with microservices and distributed systems, Solid knowledge of HTML5 CSS3 JavaScript, Hands-on experience with React Angular or Vue, Experience with Jenkins pipelines, Experience with Docker and Kubernetes, Experience with MySQL PostgreSQL or Oracle, Knowledge of software architecture and design patterns, Experience working in Agile Scrum, Understanding of cryptography encryption digital signatures and key management, Experience writing unit and integration tests using JUnit and Mockito 📃 Skills: Java, SpringBoot, SpringSecurity, Hibernate, JPA, REST, Microservices, HTML5, CSS3, JavaScript, React, Angular, Vue, Jenkins, Docker, Kubernetes, MySQL, PostgreSQL, Oracle, JUnit, Mockito, CICD, Agile, Scrum, Cryptography, Encryption, DigitalSignatures, KeyManagement, DesignPatterns 🏢 Description: 🚀 Senior Full Stack Java Developer 📍 Hybrid | 1 day from the office in Gdańsk or Warsaw Are you an experienced Full Stack Developer passionate about building secure, scalable applications and leveraging the latest AI-powered development tools? Join our team and help shape innovative solutions within the payments and fintech space. We're looking for a Senior Software Engineer who combines strong Java expertise with a modern engineering mindset and enthusiasm for Agentic AI technologies such as GitHub Copilot, ChatGPT, Claude, and Cline. 💡 Your Mission As a Senior Full Stack Java Developer, you will: 🔧 Development & Engineering Design, develop, and maintain enterprise-grade full-stack applications. Build scalable backend services using Java, Spring Boot, and Spring Security. Develop modern, responsive user interfaces using React, Angular, or Vue.js. Optimize database interactions using Hibernate/JPA. Design and implement secure solutions for handling sensitive financial data. Participate in the full software development lifecycle—from concept to deployment. 🤖 AI-Powered Development Utilize Agentic AI tools to accelerate development and improve code quality. Apply AI solutions for coding, testing, documentation, and troubleshooting. Explore and adopt emerging AI technologies to enhance engineering efficiency. Share AI best practices and drive innovation within the team. ⚙️ CI/CD & DevOps Build and maintain Jenkins CI/CD pipelines. Automate testing, deployment, and release processes. Improve development workflows and delivery speed. ✅ Quality & Testing Create and maintain unit and integration tests using JUnit and Mockito. Participate in code reviews and quality assurance initiatives. Debug and solve complex technical challenges. 🤝 Collaboration Work closely with Product Managers, QA Engineers, Designers, and fellow Developers. Participate in Agile/Scrum ceremonies. Contribute to technical documentation and knowledge sharing. 🎯 Must-Have Skills Backend ✔️ 5+ years of commercial Java development experience ✔️ Strong expertise in: Java Spring Boot Spring Security Hibernate/JPA ✔️ Experience building RESTful APIs ✔️ Experience with microservices and distributed systems Frontend ✔️ Solid knowledge of: HTML5 CSS3 JavaScript ✔️ Hands-on experience with: React Angular Vue.js DevOps & Infrastructure ✔️ Jenkins CI/CD ✔️ Docker & Kubernetes ✔️ MySQL, PostgreSQL, or Oracle Engineering Practices ✔️ Software architecture and design patterns ✔️ Agile/Scrum methodologies ✔️ Understanding of cryptography, encryption, digital signatures, and key management ⭐ Nice to Have Experience with AWS, Azure, or GCP Android or iOS development experience Open-source contributions Technical blogging or community involvement 💳 FinTech & Payments Experience 2+ years in fintech, payments, or financial services will be great (nice to have) Knowledge of ISO 8583, EMV, and PCI DSS Experience with HSMs and key management systems Familiarity with tokenization and real-time payment systems Understanding of financial compliance and regulations 🎁 What You'll Get ✨ Opportunity to work on innovative fintech products ✨ Exposure to cutting-edge AI-powered development practices ✨ Hybrid work model (Gdańsk or Warsaw) ✨ Collaborative and supportive engineering culture ✨ Influence on architecture and technical decisions ✨ Continuous learning and professional growth opportunities 🚀 Ready to build the future of fintech with AI-enhanced engineering? Apply now and join a team where modern technology, innovation, and engineering excellence come together.

🏢 Summary: Full Stack Developer role working on diverse client projects using a modern TypeScript-based stack across frontend and backend. The position involves building and shaping digital products with direct client collaboration and strong code quality practices. You will contribute to product direction while developing scalable web applications. 🗂️ Requirements: Strong understanding of JavaScript, Commercial experience with React.js, Proficiency in TypeScript and its type system, Experience with Node.js backend development, Knowledge of server-client communication, Understanding of web platform and Web APIs, Experience with relational databases, Knowledge of CSS methodologies and preprocessors, Ability to write clean, maintainable code 📃 Skills: TypeScript, JavaScript, React, Next.js, Node.js, NestJS, PostgreSQL, CSS, SCSS, Tailwind, CSSinJS, APIs, SQL 🏢 Description: About the company WAYF is where ideas go to be made real. We're a digital product agency built for visionaries – from ambitious founders to global enterprises. Since 2020, our 35+ person team (primarily based in Poland, working globally) has helped category leaders design and deliver digital experiences that move the needle. We're trusted by the Council of Europe Development Bank (CEB) to reimagine how they communicate the human stories behind their multi-billion euro impact. We collaborate with large corporations like Ingersoll Rand on product design, engineering, and process innovation across global markets. We shape digital platforms for cultural icons like Okolice Ciała – whose books, viral content, and community inspire millions across Poland and beyond. Startups and scaleups like Framer and Rye (founded by Justin Kan of Twitch) choose us for product design, brand upgrades, and mission-critical product and marketing launches. VC firms like Primary and 201.vc rely on us to bring clarity and craft to their brands and portfolio companies. Our track record also includes helping shape early product and design foundations at Ramp Network – now one of the most recognisable crypto brands globally – in a multi-year collaboration that spanned their rise from bold beginnings to breakout success. Inside WAYF, feedback is fast and honest. People are kind, curious, and self-driven. We care deeply about the work – and each other. We operate like a tight-knit studio with the ambition of a global consultancy. It's a place to grow, do meaningful projects, and build what others say can't be done. About the role We're lucky to work with some really exciting ventures, which means we can offer new joiners a wide range of interesting projects. Our client base spans various sectors, giving you exposure to different industries and challenges. Since you're coming on board while we're in a growth phase, you'll have a unique chance to grow right along with us. It's a thrilling time to join – you'll be able to make a real impact and shape your role as the company continues to evolve. We've got the stability of an established business, but we haven't lost that startup energy and flexibility. We are looking for a Full Stack Developer to join our team permanently and work with our key clients on their most exciting projects! Technical info for this position General: TypeScript Backend: Node.js, NestJS, PostgreSQL Frontend: React.js, Next.js Mobile: React Native (optional/nice-to-have) ‎ Core tools we use Slack, Linear, Notion Tasks Use a modern tech stack: TypeScript, React.js, Next.js, Node.js Work directly with our clients, alongside our tightly knit team (Project Managers included!) Have direct impact on the product vision and direction Write clean, maintainable code Have 100% of your code reviewed Self-manage and organise your work as you like — as long as it's effective Join our knowledge-sharing initiatives Tech requirements ✔️ A solid understanding of JS, its benefits, and limitations ✔️ Commercial experience with React.js ✔️ Understanding of the Typescript type system, it's pros and cons ✔️ Knowledge of different techniques of writing CSS - CSSinJS, CSS modules, SCSS, Tailwind ✔️ Knowledge of web platform and its APIs ✔️ Understanding of how the web works from top to bottom - server-client communication ✔️ Understanding of how databases work and how to use them efficiently A note on AI We use AI tools daily: in development, in design, in how we think about problems. We're not looking for people who treat this as a threat or a shortcut, but as a fundamental shift in how great software gets built. If you're curious, adaptive, and already weaving AI into your workflow, you'll feel right at home. If you're waiting for it to blow over – this probably isn't the right fit. Soft requirements 🗣️ English B2+ (for communication with Clients and Partners) and Polish B2+ (for internal communication) ⛱️ Experience with working remotely 💬 Transparent communication 👀 Attention to detail 👩‍💻 Self-driven and can self-manage 👋 Kind and can take & give feedback openly 🚀 A knack for product understanding and value-driven development Compensation Junior - B2B 6 000 - 9 000 PLN Mid - B2B 10 000 - 17 000 PLN Senior - B2B 18 000 - 25 000 PLN Benefits 💰 Annual performance-based bonuses ⛱️ Work fully remotely with full autonomy (no micromanagement) 💻 Work with modern hardware and software (we aim to use MacBooks exclusively, Linux is an option in specific cases) 💊 Stay on top of your game with generous private healthcare coverage (including dental) 🏃‍♂️ Into sports? Enjoy our Multisport package for access to their wide range of discounts and free passes 🌴 Take time off whenever you need it. 23 paid vacation days per year (pro-rated during your first year) plus paid days off during our annual retreats 🍱 Enjoy a 0.5h paid lunch break every workday 💸 Grow through regular progress check-ins, with salary increases and promotions 👫 Join our bi-annual retreats to hang out with the team (optional but encouraged) What does our recruitment process look like? After your CV has grabbed our attention, you can expect: Quick intro call to get to know each other. Technical Interview - a 1.5h call with one of our senior developers, where you'll be tested for relevant theoretical and practical skills You get an offer from us and we start working together ASAP! Footnote Check out wayfdigital.com for more info We are committed to building an open, inclusive environment for all members of our collective. WAYF does not and shall not discriminate on the basis of race, color, religion, gender, gender expression, age, national origin, disability, marital status, military status, sexual orientation, or social status.

🏢 Summary: Senior Full Stack Developer role focused on architecting and delivering high-performance web applications using React and Node.js. The position involves leading system design, building scalable front-end and back-end solutions, and overseeing cloud-based deployments and DevOps processes. The role includes technical ownership of microservices, APIs, databases, and application performance in a hybrid Warsaw-based setup. 🗂️ Requirements: 7+ years full stack development experience, 2+ years in senior or technical lead role, Expert-level React.js with Hooks and Redux, Advanced JavaScript ES6+ proficiency, Strong Node.js and Express.js experience, Experience designing REST or GraphQL APIs, Experience with OAuth, JWT, sessions, RBAC, Database design and optimization with PostgreSQL, MySQL, or MongoDB, Hands-on Docker experience, Experience with AWS, Azure, or GCP, CI/CD pipeline management experience, Proficiency with Git workflows, Bachelor’s or Master’s in Computer Science or related field 📃 Skills: React, Redux, JavaScript, HTML5, CSS3, Node.js, Express, GraphQL, REST, OAuth, JWT, RBAC, PostgreSQL, MySQL, MongoDB, Docker, Kubernetes, AWS, Azure, GCP, Git, CI/CD, Webpack, Babel, Vite 🏢 Description: 🧩 About the Company Our client is a rapidly growing US-based technology firm with global operations. With a strong commitment to innovation and quality engineering, the company is building a new engineering hub in Warsaw. This is your opportunity to join a high-performing team and play a pivotal role in developing next-generation digital solutions for the private capital markets. 📍 Location & Setup Start remotely and transition to a hybrid model based in Warsaw (3 days/week in the office in the coming months). 🧠 The Role: Senior Full Stack Developer (React & Node.js) We’re looking for an expert-level Senior Full Stack Developer with at least 7 years of professional experience in designing, architecting, and delivering high-performance web applications. You will take ownership of complex technical challenges across both the front-end and back-end, drive architectural decisions, and provide technical leadership and mentorship within the software development lifecycle. 🔧 Key Responsibilities Technical Leadership: Architect and develop scalable, responsive UIs with React.js, Redux, and modern JavaScript (ES6+). System Design: Design, build, and scale advanced server-side applications, microservices architecture, and RESTful/GraphQL APIs with Node.js and Express. Data Architecture: Lead database design, optimization, and integration strategies (PostgreSQL, MySQL, or MongoDB). Quality Assurance: Define testing strategies, write robust unit/integration tests, and establish efficient debugging protocols for the team. DevOps & Deployment: Oversee and optimize CI/CD pipelines, containerization using Docker, and cloud deployments. Agile Mentorship: Lead agile collaboration with product managers, designers, and engineers, while mentoring mid-level and junior developers. Performance: Proactively monitor system performance, identify bottlenecks, and maintain high-availability production-grade applications. Standards: Establish and maintain comprehensive technical documentation and coding standards. 📌 What We’re Looking For Front-End: Expert-level experience with React.js, Hooks, Redux, and complex component-based architecture. Deep mastery of HTML5, CSS3, and ES6+. Advanced configuration and optimization experience with build tools like Webpack, Babel, or Vite. Back-End: Senior-level proficiency in Node.js & Express.js for enterprise applications. Extensive API design and architecture experience (GraphQL highly preferred, alongside REST). Deep understanding and implementation experience with advanced security and authentication protocols: OAuth, JWT, sessions, and RBAC. Databases & DevOps: Proven experience in scaling and optimizing relational and non-relational databases (PostgreSQL, MySQL, or MongoDB). Solid hands-on experience with Docker; Kubernetes experience is highly advantageous. Demonstrated experience designing and deploying applications on cloud platforms (AWS, Azure, or GCP). Advanced proficiency with Git workflows and driving Agile/Scrum methodologies. 🎓 Qualifications Bachelor’s or Master’s in Computer Science or a related field. 7+ years of hands-on experience in full stack development. 2+ years of experience in a senior or technical lead capacity. Proven track record of architecting, deploying, and maintaining high-traffic production applications. 💡 Soft Skills Strategic, analytical thinker and highly effective problem-solver. Strong technical leadership, team collaboration, and cross-functional communication skills. Self-motivated with excellent time management and the ability to drive projects autonomously. Passion for continuous learning, adopting new technologies, and sharing knowledge with the team. 🎁 What’s Offered Competitive salary up to $6,200 USD/month. Hybrid remote role with 3 days form office in the heart of Warsaw Generous Paid Time Off (PTO). Comprehensive full benefits package. The unique chance to shape the technical foundation of a new engineering hub and lead high-impact projects. A supportive, innovation-driven work environment that values technical excellence.

🏢 Summary: Full-time Senior Full Stack Developer role focused on building scalable frontend applications and BFF services using TypeScript, React, Node.js, and NestJS. The position involves API and LLM integrations, frontend architecture design, performance optimization, and collaboration with product and engineering teams. Hybrid work from Kraków is expected 2–3 days per week. 🗂️ Requirements: Strong experience with TypeScript, Several years of software engineering experience, Strong React and modern frontend development expertise, Experience with frontend unit and integration testing, API design and development experience with NestJS, Experience with Node.js, Understanding of server-side rendering and Server Components, Knowledge of CDN strategies and caching, Understanding of software architecture and system design, Experience with Docker, Experience with Git, Experience with CI/CD, Experience with Azure, Ability to work in uncertain environments and solve problems pragmatically 📃 Skills: TypeScript, React, NestJS, Node.js, Docker, Git, CI/CD, Azure, GraphQL, Zustand, ReactQuery, Python 🏢 Description: Role overview Svitla Systems Inc. is looking for a Senior Full Stack Developer for a full-time position (40 hours per week) in Kraków, Poland. Our client is a British wholesale distributor. You will be responsible for building user interfaces with TypeScript and React, developing and maintaining BFF services, integrating APIs and LLM services, designing scalable frontend architecture, optimizing application performance and user experience, implementing error handling and resilience patterns, and collaborating with product and engineering teams to deliver features from prototype to production. Office work is expected 2-3 days per week. Responsibilities Building user interfaces using TypeScript and React. Building and maintaining Backend for Frontend (BFF) services to orchestrate API calls and shape data for user interface needs. Integrating APIs, LLM services, and streaming endpoints to deliver product features. Designing and implementing scalable and maintainable frontend architecture. Ensuring performance, responsiveness, and optimal user experience across the application. Implementing error handling, loading states, and resilience patterns for distributed systems. Collaborating with product and engineering teams to bring concepts from prototype to production. Requirements Strong hands-on experience with TypeScript development. Several years of experience in software engineering, ideally with a strong focus on React and modern frontend development tools. Experience with frontend testing, including unit and integration testing. API design and development experience using NestJS and Node.js. Understanding of server-side rendering, Server Components, CDN strategies, and caching. Solid understanding of software architecture, clean code, and system design. Ability to work effectively in environments with a high degree of uncertainty and take a pragmatic, solution-oriented approach to problem-solving. Experience with Docker, Git, CI/CD, and Azure. Nice to Have Knowledge of GraphQL APIs. Experience with state management libraries (e.g. Zustand, React Query). Familiarity with Python, particularly in the context of working with backend services or AI-powered systems. Experience building data-intensive or real-time user interfaces. Familiarity with designing user experiences for AI-powered features or non-deterministic outputs. We offer US and EU projects based on advanced technologies. Competitive compensation based on skills and experience. Regular performance appraisals to support your growth. Flexibility in the workspace, either remote or in our welcoming office. Comprehensive medical insurance after one month. MultiSport card with access to 2500 sports facilities all over Poland Bonuses for recommendations of new employees. Bonuses for article writing, public talks, and other activities. 15 vacation days, 10 national holidays, 10 sick leaves, and family days off. Personalized learning program tailored to your interests and skill development. Free tech webinars and meetups organized by Svitla. Welcome and anniversary presents, gifts for children, and more. Regular corporate events and meetups. Awesome team, friendly and supportive community!

🏢 Summary: Mid-level Full-stack Developer role focused on building and maintaining web and mobile applications using React and .NET technologies. The position involves developing scalable backend services, microservices, and SEO-friendly frontends integrated with CMS, within a multinational Agile environment. The role combines frontend, backend, cloud, and DevOps responsibilities with regular team collaboration. 🗂️ Requirements: 2–4 years experience as FullStack Developer, .NET 8/10 proficiency, C# proficiency, Strong React knowledge, JavaScript proficiency, TypeScript proficiency, HTML5 knowledge, CSS3 knowledge, Experience with RESTful APIs, Experience with Git, Experience with Microsoft Azure (Functions, Durable Functions, CosmosDB, ServiceBus, Application Insights), Experience with CI/CD pipelines, Experience with Agile methodologies, Communicative English (B2+) 📃 Skills: .NET, C#, React, JavaScript, TypeScript, HTML5, CSS3, REST, Git, Azure, Functions, CosmosDB, ServiceBus, ApplicationInsights, CI/CD, ReactNative, Expo, Sanity, GROQ, Redux, RxJS, Tanstack, Sentry, Firebase, Analytics 🏢 Description: Join Our Team as a Full-stack Developer (React, C#)! We are seeking a talented Mid FullStack Developer proficient in .NET and React to join our team. As part of our company culture, we value collaboration and regular in-person interactions. Our team meets every two months in our Poznań office for informal gatherings to connect, share ideas, and strengthen teamwork in a relaxed setting. You will work in multinational environment and will be responsible for designing and implementing software solutions, utilizing both front-end and back-end technologies. This role requires strong problem-solving skills, excellent communication abilities, and a passion for delivering high-quality code. Ready to take the next step in your career? Apply now and join us! Key Responsibilities: • Design and develop SEO-friendly web application, based on React and TypeScript and integrated with Sanity CMS. • Contributing to a mobile application using React Native, TypeScript and Expo . • Build and maintain microservices to enhance the web experience, including features like roadside assistance, car repair bookings, and membership management. • Develop robust and scalable backend systems using .NET 8/10, Azure ServiceBus, Functions, CosmosDB and more. • Utilize Sentry for error monitoring and Google Analytics/Firebase to track user behaviour and optimize performance. Requirements : Proven experience (2-4 years) as a FullStack Developer Proficiency in .NET (preferably .NET 8/10), C# Strong understanding of front-end technologies, including React, JavaScript, TypeScript, HTML5, and CSS3 Practical knowledge of clean-code principles and patterns, drive to write clean, testable and maintainable code Experience with RESTful APIs and Web Services Knowledge of version control systems, such as Git Excellent problem-solving and analytical skills Familiarity with Microsoft Azure platform (Functions and Durable Functions, CosmosDb, ServiceBus, Application Insights) Experience with DevOps approach and CI/CD pipelines Strong communication and interpersonal skills, communicative English (B2+) Experience with Agile development methodologies Nice to have: Experience in working with Sanity CMS and GROQ query language (or any other headless CMS) Familiarity with Figma or similar tools At least basic knowledge about Server Side Rendering and libraries like: Redux, RxJS, Tanstack Experience in working with mobile apps and practical knowledge of React Native, Expo, Expo Application Services Knowledge of microservices architecture and software integration patterns We offer: Conference/workshop budget of approximately 10000 PLN!- the budget renews every year and can be used for conferences, workshops, training programs, certifications, studies, or other development initiatives. "Fabresikowe": one-time 1000 PLN bonus to create your work space more comfortable and more tailored to your needs! Relaxing office massages In-house trainings Team events Frequent company events Free breakfast every day Free beverages, fresh fruit, snacks Chill out room English and Norwegian classes

🏢 Summary: Senior Full Stack Developer role focused on building and scaling a global AI platform with modern frontend, backend, and AI-integrated technologies. The position involves developing enterprise-grade applications, AI features, cloud-native services, and distributed systems while collaborating with architects and AI specialists. 🗂️ Requirements: Senior-level full-stack software engineering experience, Strong React expertise, Backend development with Node.js, JavaScript proficiency, TypeScript proficiency, Python development experience, API design experience, Experience with distributed systems, Experience with microservices, Enterprise integration experience, Knowledge of authentication and authorization, Understanding of scalable application architecture, Familiarity with LLMs, Familiarity with RAG, Familiarity with embeddings, Prompt engineering knowledge, Experience with cloud platforms, CI/CD experience, Docker experience, Degree in Computer Science, Engineering, or equivalent experience 📃 Skills: React, Node.js, JavaScript, TypeScript, Python, Express.js, NestJS, API, LLM, RAG, Embeddings, Docker, CI/CD, GCP, Microservices 🏢 Description: Choosing Capgemini means choosing a company where you will be empowered to shape your career in the way you’d like, where you’ll be supported and inspired by a collaborative community of colleagues around the world, and where you’ll be able to reimagine what’s possible. Join us and help the world’s leading organizations unlock the value of technology and build a more sustainable, more inclusive world. Your role As a Senior Full Stack Developer within the Neo team at Capgemini, you will play a key role in shaping the next generation of our global AI platform. Neo connects employees worldwide with enterprise data, digital tools, and AI-powered experiences, enabling smarter and more efficient ways of working. This is an opportunity to contribute to a strategic AI initiative, influence technical decisions, and build scalable solutions that impact thousands of users across the organization. Working at the intersection of software engineering and AI, you will help transform innovative ideas into enterprise-grade products. Your tasks Design, develop, and evolve scalable full-stack applications that power Capgemini's global AI platform Drive technical excellence across frontend, backend, and AI-integrated services Build high-performance user experiences using React and modern frontend technologies Develop robust backend services and APIs using JavaScript/TypeScript and Node.js frameworks such as Express.js and NestJS Create Python-based components supporting AI capabilities, automation, and data processing Architect and implement integrations connecting AI services, enterprise systems, and business applications Contribute to the development of advanced AI features, including conversational experiences, RAG workflows, and intelligent response generation Partner with architects, AI specialists, and product stakeholders to define and deliver impactful solutions Support cloud-native deployments and engineering best practices, ensuring scalability, security, and operational excellence Prototype, test, and iterate rapidly within a fast-evolving AI ecosystem Your profile Proven experience in senior full-stack software engineering roles Strong expertise in React and modern frontend architecture Solid backend development experience with Node.js, JavaScript/TypeScript, and API design Strong Python skills, ideally gained through AI, machine learning, automation, or data-processing projects Experience designing and building distributed systems, microservices, and enterprise integrations Good understanding of authentication, authorization, security, and scalable application architecture Familiarity with modern AI application patterns, including LLMs, RAG, embeddings, and prompt engineering Experience working with cloud platforms (preferably GCP), CI/CD pipelines, Docker, and production-grade environments Ability to operate independently, influence technical direction, and take ownership of complex initiatives Degree in Computer Science, Engineering, or equivalent practical experience What You'll love about working here Practical benefits: yearly financial bonus, private medical care with Medicover with additional packages (e.g., dental, senior care, oncology) available on preferential terms, life insurance and access to NAIS benefit platform. Access to over 70 training tracks with certification opportunities (e.g., GenAI, Excel, Business Analysis, Project Management) on our NEXT platform. Dive into a world of knowledge with free access to Education First languages platform, TED Talks and Udemy Business materials and trainings. Cutting-Edge Technology: Position yourself at the forefront of IT innovation, working with the latest technologies and platforms. Capgemini partners with top global enterprises, including 145 Fortune 500 companies. Enjoy hybrid working model that fits your life - after completing onboarding, connect work from a modern office with ergonomic work from home, thanks to home office package (including laptop, monitor, and chair). Ask your recruiter about the details. Get to know us Capgemini is committed to diversity and inclusion, ensuring fairness in all employment practices. We evaluate individuals based on qualifications and performance, not personal characteristics, striving to create a workplace where everyone can succeed and feel valued. Do you want to get to know us better? Check our Instagram — @capgeminipl or visit our Facebook profile — Capgemini Polska . You can also find us on YouTube . About Capgemini Capgemini is an AI-powered global business and technology transformation partner, delivering tangible business value. We imagine the future of organizations and make it real with AI, technology and people. With our strong heritage of nearly 60 years, we are a responsible and diverse group of over 420,000 team members in more than 50 countries. We deliver end-to-end services and solutions with our deep industry expertise and strong partner ecosystem, leveraging our capabilities across strategy, technology, design, engineering and business operations. Ref. code: 514083 Posted on: 8 Jul 2026 Experience Level: Experienced Professionals Contract Type: Permanent Location: Warszawa, PL Opole, PL Kraków, PL Gdańsk, PL Poznań, PL Katowice, PL Wrocław, PL Lublin, PL Brand: Capgemini Professional Community: SaaS Solutions

🏢 Summary: Senior Fullstack Engineer role focused on rebuilding and enhancing a modern web application using a contemporary TypeScript-based stack. The position involves hands-on frontend and backend development, ownership of features, and ensuring high-quality delivery within a small engineering team. Strong emphasis on Next.js, system design, testing, DevOps, and AI-assisted development. 🗂️ Requirements: 5+ years experience as Full-stack Engineer, Expert-level Next.js, Expert-level React, Expert-level TypeScript, Experience with PostgreSQL, Experience with Prisma or modern ORM, Experience with type-safe APIs (tRPC or similar), Experience with monorepo architectures (Turborepo, Nx or similar), Experience with React state management (Tanstack Query, Zustand), Strong understanding of unit, integration, and E2E testing, Experience with CI/CD pipelines, Experience with DevOps principles, Experience with observability (logging, monitoring, tracing), Ability to use AI coding assistants effectively, Fluent English communication skills 📃 Skills: Next.js, React, TypeScript, JavaScript, tRPC, Prisma, PostgreSQL, Supabase, Trigger.dev, Python, Tanstack, Zustand, ReactHookForm, Tailwind, shadcn, better-auth, Vitest, Playwright, Turborepo, pnpm, GitHubActions, CI/CD, DevOps 🏢 Description: About Us Latent AI is a leading AI solutions implementation partner, dedicated to helping our diverse clients solve their most complex challenges with cutting-edge technology. Our strength lies in our small, agile, and expert teams who deliver bespoke AI and machine learning solutions. We foster a culture of collaboration, innovation, and deep technical excellence. As we grow, we are seeking a leader who is passionate about nurturing the talented individuals at the heart of our success. Company Website : https://www.reachlatent.com/ The Role Start Date: March 1st 2026 We are looking for a senior fullstack engineer to join the team and work on rebuilding and enhancing a modern web application. The role is hands-on, covering both frontend and backend development, with a strong focus on quality, collaboration, and delivery. The ideal candidate is comfortable working with modern JavaScript frameworks, rebuilding existing systems, and using AI-assisted development tools effectively. This role suits someone who is proactive, communicates clearly, and can work independently while contributing as part of a close-knit engineering team. Our Tech Stack Frontend: Next.js, React 19, TypeScript, Tailwind v4, shadcn/ui Backend: tRPC, Prisma ORM, PostgreSQL, Supabase Background Jobs: Trigger.dev (TypeScript + Python) State & Data: Tanstack Query (React Query), Zustand, React Hook Form Auth: better-auth Testing: Vitest (unit/integration), Playwright (E2E) Monorepo: Turborepo + pnpm workspaces CI/CD: GitHub Actions What You’ll Do Project & Delivery Team Player: You will operate as part of a small team of full stack engineers who rebuild and maintain a full-stack web application (frontend & backend). Participate in technical discussions, reviews, and solution design. Proactive Ownership : A deep sense of accountability for your solutions, theproduct's quality, and its timely delivery. Own the planning and development of features of our Next.js/Node.js/Python platform. Hands-On Technical Expertise Core Stack Mastery: Expert-level, hands-on ability with Next.js and TypeScript . You must be able to write production-grade code. Full-Stack Context: A strong grasp of the entire system, including the backend data-processing services ( TypeScript ) and databases ( PostgreSQL ). DevOps & CI/CD: Solid experience with DevOps principles and CI/CD pipelines . You must understand how to maintain and improve a fast, reliable, and automated path from code to production. Observability: Experience implementing or managing observability tools (e.g.,logging, monitoring, tracing) to understand system health, debug issues, andensure high availability. Technical Quality & Testing: A strong understanding of modern testing strategies (unit, integration, e2e) and a commitment to shipping high-quality, well-tested code. AI Adoption: Leveraging AI coding assistants wisely to enhance development efficiency while keeping production level quality. Who You Are Technical Expert: Deep, hands-on experience with Next.js , TypeScript , and full-stack systems. Strong Communicator: Fluent in English, with ability to communicate complex technical ideas clearly and confidently to both engineers and clients. Business-Minded Engineer: You understand the “why” behind the code - connecting technical priorities directly to business outcomes. Problem Solver : You have the ability to make recommendations and contribute to the team technical discussions, constantly seeking ways to move forward, even when dealing with ambiguity. Role Requirements Must: Minimum of 5+ years of experience as a full-stack engineer, specifically working with modern web applications. Expert-level, hands-on ability with Next.js, React, and TypeScript. Deep experience with PostgreSQL and modern ORMs (we use Prisma). Experience with type-safe APIs (tRPC or similar approaches). Experience with monorepo architectures (Turborepo, Nx, or similar). Familiarity with React state management (Tanstack Query, Zustand). Working effectively with AI coding agents to enhance productivity. Commitment to high-quality code, including strong understanding of modern testing strategies (unit, integration, e2e). Excellent written and verbal communication skills in English, capable of communicating complex technical ideas clearly. Proven ability to work independently, proactively own outcomes, and contribute effectively as part of a small, close-knit team. Advantage: Experience with Tailwind CSS and modern component libraries (shadcn/ui). Experience with form libraries (React Hook Form or similar). Understanding of background job systems ( Trigger.dev , or similar). Experience with E2E testing frameworks. Understanding and experience with DevOps principles and managing CI/CD pipelines. Experience implementing or managing observability tools (logging, monitoring, tracing). Experience with authentication systems. Bonus Points: Experience in a consulting or professional services environment. Prior exposure to AI, ML, or data-driven platforms. Familiarity with distributed teams and cross-timezone collaboration. Why Join Us? This is a unique opportunity to shape the engineering culture at a growing AI services company. You'll have a direct impact on the careers of our talented engineers and play a pivotal role in our ability to deliver world-class solutions to our clients. If you are a leader who believes that great technology is built by happy, empowered, and supported people, we would love to hear from you.