Senior Fullstack Engineer (.NET / Node.js + React)

🏢 Summary: Senior Full Stack Engineer role focused on building and scaling a headless, microservices-based SaaS platform for the FinTech sector. The position involves full ownership of architecture, development, and quality across a distributed system using Node.js and React. Fully remote B2B contract within a small expert team working in Scrum. 🗂️ Requirements: 4–6 years experience in B2B or B2C systems development, Strong proficiency in Node.js, Strong proficiency in React, Experience with microservices architecture, Experience with search engines, Experience with REST API integrations, Experience with data repositories integration, Knowledge of message queues, Knowledge of in-memory caching mechanisms, Experience working in Scrum, Experience creating technical documentation 📃 Skills: Node.js, React, Microservices, REST, Magento, APIs, MessageQueues, Caching, SearchEngines, SCRUM 🏢 Description: Dla naszego klienta poszukujemy kandydatów na stanowisko: Senior Full Stack Engineer Projekt: Budowa i skalowanie zaawansowanej platformy SaaS dla sektora nowoczesnych usług finansowych (FinTech) na rynku niemieckim. Skupiamy się na architekturze typu headless oraz rozwiązaniach mikroserwisowych. Stack technologiczny: Node.js, React, Microservices, REST APIs, Magento (integracje), Message Queues. Zespół: Kameralny, 7-osobowy zespół ekspertów pracujący w rozproszonej strukturze. Metodyka pracy: SCRUM z dynamicznym podejściem do dostarczania rozwiązań w cyklach tygodniowych. Model współpracy: Zdalna 100%. Wynagrodzenie: 20 000 - 23 000 PLN - kontrakt B2B. Zakres obowiązków: Kompleksowe zarządzanie procesem powstawania oprogramowania od fazy koncepcyjnej po wdrożenie. Pełna odpowiedzialność za architekturę rozwiązań oraz kontrolę jakości dostarczanych usług. Projektowanie i rozwój infrastruktury w oparciu o architekturę typu headless. Wsparcie merytoryczne i mentoring dla mniej doświadczonych członków zespołu technicznego. Aktywne uczestnictwo w dokumentowaniu i optymalizacji architektury wysokopoziomowej. Ścisła współpraca z działami biznesowymi w celu szybkiego dostarczania wartościowych funkcji. Implementacja procesów wewnętrznych oraz rozwiązywanie bieżących blokad technologicznych. Oczekujemy: Minimum 4-6 lat doświadczenia w rozwoju systemów klasy B2B lub B2C. Bardzo dobrej znajomości środowiska Node.js oraz biblioteki React. Praktycznej biegłości w pracy z architekturą mikroserwisową i silnikami wyszukiwania. Doświadczenia w integracji repozytoriów danych i systemów klasy commerce poprzez REST API. Znajomości kolejek komunikatów oraz mechanizmów cachowania w pamięci. Umiejętności pracy w zwinnym środowisku z krótkimi cyklami wydawniczymi. Doskonałych zdolności komunikacyjnych oraz umiejętności ustalania priorytetów. Doświadczenia w tworzeniu dokumentacji technicznej i projektowej. Oferujemy: Realny wpływ na kształt innowacyjnego projektu finansowego w międzynarodowym środowisku. Możliwość pracy z najnowszymi narzędziami technologicznymi. Kultura pracy oparta na autonomii, ciągłym rozwoju i wzajemnym zaufaniu. Elastyczne podejście do czasu pracy w trybie w pełni zdalnym. Atrakcyjne wynagrodzenie w oparciu o stabilny kontrakt B2B. O nas Next Technology Professionals to wyspecjalizowana agencja rekrutacyjna i firma outsourcingowa o silnym profilu technologicznym. Od ponad 10 lat wspieramy firmy w budowie zespołów IT, AI, Cybersecurity, SAP oraz w rekrutacjach dla finansów, inżynierii i marketingu. Zrealizowaliśmy ponad 1000 skutecznych procesów rekrutacyjnych dla korporacji, scale-upów i dynamicznie rosnących startupów. Przesyłając swoje CV do Next Technology Professionals, trafiasz do starannie wyselekcjonowanej bazy kandydatów realizujących projekty dla wiodących globalnych organizacji. Pracujemy wyłącznie w oparciu o aktualne, konkretne potrzeby klientów. Jeśli Twój profil będzie odpowiadał jednemu z prowadzonych procesów, skontaktujemy się niezwłocznie.

🏢 Summary: Senior Full-Stack Engineer role focused on building and scaling an AI-powered document processing and automation platform in a cloud environment. The position involves developing backend services in Python and front-end applications in TypeScript while delivering scalable APIs, microservices, and data workflows. The role requires hands-on contribution to architecture, cloud deployment, and integration of AI-driven features. 🗂️ Requirements: 6+ years of professional software engineering experience, Strong proficiency in Python, Experience with FastAPI, Flask, or Django, Solid experience with TypeScript, Experience with React or Next.js, Hands-on experience designing and implementing microservices, Experience building and integrating REST APIs, Strong knowledge of relational or NoSQL databases, Experience with AWS or Azure, Familiarity with CI/CD pipelines, Experience with Docker, Proficiency with Git, Understanding of scalability, reliability, performance, and security principles 📃 Skills: Python, FastAPI, Flask, Django, TypeScript, React, Next.js, REST, Microservices, PostgreSQL, MySQL, MongoDB, Firestore, AWS, Azure, Docker, Git, CI/CD 🏢 Description: Client Overview Our client is a global UK-based financial services and investment banking organization developing an AI-powered document processing and automation platform used across multiple business units. The platform focuses on large-scale data processing, workflow automation, integration with internal systems, and delivering modern digital capabilities for the wider banking group. Position Overview We are looking for a Senior Full-Stack Engineer to join a cross-functional engineering team building core components of the AI-driven document processing platform. This position requires strong backend engineering experience with Python as well as solid front-end or full-stack proficiency with TypeScript (preferably React, Next.js, or similar frameworks). You will work on delivering scalable APIs, microservices, data workflows, and UI components that power document automation features, internal tools, and operational dashboards. The role involves close collaboration with product, architecture, GenAI, and platform engineering teams. This role is ideal for someone who is hands-on, highly technical, and comfortable designing, developing, and deploying production-grade systems in cloud environments (preferably Google Cloud). Key Responsibilities Design, develop, and maintain backend services using Python (FastAPI, Flask, Django, or similar frameworks). Build front-end components and UIs using TypeScript (React, Next.js, or similar frameworks). Develop and integrate REST APIs and microservices, ensuring strong performance, reliability, and observability. Collaborate closely with GenAI engineers to integrate AI-driven features and document-processing flows. Implement data processing pipelines for structured and unstructured data. Contribute to the platform’s architecture, design patterns, and technical decision-making. Write automated tests and ensure a high level of code quality, maintainability, and security. Partner with product managers, designers, and QA engineers to deliver high-quality solutions on time. Document code, service interfaces, workflows, and architectural decisions. Requirements 6+ years of professional software engineering experience, with significant work in both backend and full-stack roles. Strong proficiency in Python (FastAPI, Flask, Django, or similar). Solid experience with TypeScript and modern front-end frameworks (React, Next.js, or similar). Hands-on experience designing and implementing microservices, APIs, and backend systems. Strong understanding of databases: relational (PostgreSQL, MySQL) and/or NoSQL (MongoDB, Firestore). Experience with any cloud providers (AWS/Azure). Familiarity with CI/CD pipelines, Docker, Git, and modern DevOps practices. Strong understanding of software engineering principles: scalability, reliability, performance, and security. Experience working in agile, cross-functional teams on complex products. Excellent communication skills and ability to work with both technical and non-technical stakeholders. Nice to Have Experience working with AI/ML or GenAI-driven systems. Experience with Google Cloud Platform Familiarity with Vertex AI, Gemini, or integration with LLM-powered services. Experience with WebSockets, event-driven architectures, or Pub/Sub. Knowledge of authentication/authorization standards (OAuth2, JWT, IAM). Experience with document processing, OCR, or workflow automation.

🏢 Summary: Senior Fullstack TypeScript Engineer role in a fintech environment focused on building and maintaining scalable, secure full-stack applications with a backend emphasis (Node.js) and React frontend. The position involves system and API design, real-time components, testing, and production support, using modern engineering practices including AI-assisted development. It is a hands-on role centered on architecture quality, performance, and reliable delivery. 🗂️ Requirements: Strong experience with Node.js, TypeScript, JavaScript (ES6+), React, Experience building full-stack web applications, Solid understanding of REST APIs and authentication, Knowledge of scalable system design (stateless services, caching, queues, performance), Experience with relational databases (PostgreSQL or MySQL), Experience with unit, integration, and E2E testing, Understanding of performance optimisation and debugging, Ability to evaluate technical trade-offs and system design decisions, Experience using AI tools in development workflows with critical validation of outputs, Professional English proficiency 📃 Skills: TypeScript, Node.js, JavaScript, React, REST, PostgreSQL, MySQL, SQL, Testing, CI/CD, Authentication, Caching, Queues, AI, Git, HTML, CSS 🏢 Description: Senior Fullstack TypeScript Engineer – Fintech London / Remote | B2B | Competitive package Our client is a UK-based fintech company with 25+ years of experience delivering innovative solutions for repo and securities financing markets. Their platform connects major market participants and provides real-time services that enable efficient and accurate trading. We are looking for a Senior Fullstack TypeScript Engineer to join our client’s engineering team. This role has a strong backend focus (approximately 60% backend / 40% frontend) and involves working across both frontend and backend systems, contributing to scalable architecture, feature delivery, and engineering best practices. This is a hands-on, delivery-focused role with a strong emphasis on system design, quality, and modern engineering practices, including AI-assisted development workflows. Responsibilities Build and maintain Fullstack applications using TypeScript (Node.js + React) Design and implement features across frontend and backend systems Participate in API and system design discussions Contribute to decisions around REST APIs, authentication, and architecture patterns Build secure, scalable, and maintainable systems Work with real-time and event-driven components where applicable Write and maintain unit, integration, and end-to-end tests Support production systems and assist in incident resolution when needed Participate in code reviews and contribute to engineering standards Use AI-assisted tools (e.g., Cursor, GitHub Copilot) to improve productivity, debugging, testing, and refactoring, while critically validating outputs Requirements Strong experience with Node.js, TypeScript, JavaScript (ES6+), React Experience in building full-stack web applications Solid understanding of REST APIs, authentication, and API design Knowledge of scalable system design (stateless services, caching, queues, performance) Experience with relational databases (PostgreSQL / MySQL) Experience with testing (unit, integration, E2E) Understanding of performance optimisation and debugging Ability to evaluate technical trade-offs and system design decisions Experience working in agile, collaborative teams Strong communication and ownership mindset English – professional working proficiency AI & Engineering Mindset Comfortable using AI tools in daily development work Able to: validate AI-generated code for security, maintainability, and performance use AI for debugging, refactoring, and test generation critically assess outputs instead of blindly accepting suggestions Awareness of secure usage of AI tools and data handling practices Nice to have AWS / cloud experience Docker / Terraform Event-driven architecture GraphQL experience State management (Redux / Zustand) Tailwind / Styled Components Observability (logging, metrics) Load / performance testing Data visualization (D3.js)

🏢 Summary: Senior Fullstack Engineer role focused on building modern, scalable web applications using React and Node.js, with strong emphasis on frontend development. The position covers the full application stack, including backend services, API design, and data management. You will collaborate with cross-functional teams to deliver high-quality, accessible, and high-performance digital products. 🗂️ Requirements: Strong commercial experience with React, Strong commercial experience with Node.js, Experience with React Router, Experience with TanStack Query, Experience integrating Headless CMS (preferably Contentful), Understanding of API design principles, Experience with PostgreSQL, Experience with Redis, Experience with Vitest, Experience with Playwright, Knowledge of WCAG accessibility standards, Experience with performance optimisation, Ability to work across full software development lifecycle 📃 Skills: React, Node.js, TypeScript, Fastify, PostgreSQL, Redis, React Router, TanStack Query, Contentful, Vitest, Playwright, WCAG, SAP Gigya, Salesforce 🏢 Description: Senior Fullstack Engineer (React & Node.js) About the Role We are looking for a Senior Fullstack Engineer to join a product team building modern, scalable web applications and digital experiences. You will work across the entire application stack, from user-facing interfaces to backend services and integrations. The role has a strong focus on frontend engineering while also involving backend development, API design, and data management. You will collaborate closely with product, design, and engineering teams to deliver high-quality, accessible, and performant applications. Responsibilities Develop and maintain modern web applications using React, Node.js, and TypeScript. Build scalable and reusable UI components integrated with a design system. Develop and maintain backend services and APIs using Node.js and Fastify. Integrate applications with CMS platforms and third-party services. Work with PostgreSQL and Redis to support application functionality and performance. Write and maintain automated tests, including unit and end-to-end tests. Ensure high standards of accessibility, performance, and code quality. Participate in architectural discussions and contribute to engineering best practices. Requirements Strong commercial experience in fullstack development using React and Node.js. Solid experience with modern frontend technologies, including React Router and TanStack Query. Experience integrating with Headless CMS platforms, preferably Contentful. Good understanding of API design and backend development principles. Experience with PostgreSQL and Redis. Experience with automated testing frameworks such as Vitest and Playwright. Strong understanding of accessibility standards (WCAG) and performance optimisation. Ability to work across the entire software development lifecycle in a product-oriented environment. Nice to Have Experience with authentication and identity platforms such as SAP Gigya. Experience integrating Salesforce products or loyalty platforms. Experience in highly scalable, customer-facing digital products. Experience working in agile, cross-functional product teams.

🏢 Summary: Senior Full-Stack React and Python Developer role focused on building and enhancing an AI-driven investment research platform. The position involves developing React frontend features and Python/Node.js backend services, integrating REST APIs, and ensuring high-quality, scalable solutions in a fintech environment. Fully remote within the EU. 🗂️ Requirements: 6+ years Full-Stack development experience, Strong React experience with hooks, Backend development in Python or Node.js, Experience building and integrating REST APIs, Understanding of state management patterns, Ability to work across frontend and backend, Experience with code reviews, Strong debugging skills across full stack, Fluent English, Legal right to work in the EU 📃 Skills: React, JavaScript, Python, Node.js, REST, APIs, HTML, CSS, Git 🏢 Description: Empower innovation at the forefront of financial technology — shape the future of AI-driven investment research! EU-based opportunity with a remote work model (up to 5 days per week). As a Senior Full-Stack React and Python Developer , you will be working for our client, a pioneer in building AI-powered infrastructure for investment research. You will contribute to automating expert interviews, managing global expert networks, and delivering critical insights to hedge fund clients under strict compliance standards. Join a growing platform that is redefining data-driven finance and unlock new career heights in a cutting-edge environment. Your main responsibilities: Build and iterate on React-based frontend features for our web application. Develop and maintain backend services in Python and/or Node.js. Integrate frontend components with REST APIs and data services. Participate in code reviews and promote engineering best practices. Debug issues across the entire stack—from UI rendering to API behavior. Collaborate with design and product teams to implement clean, user-friendly interfaces. You're ideal for this role if you have: At least 6 years of experience as a Full-Stack Developer, ideally within fintech or data-heavy environments. Strong React experience with modern hooks-based development. Backend development experience in Python and/or Node.js. Comfort working across the full stack and owning features end-to-end. Solid understanding of REST APIs and state management patterns. Clean coding habits and familiarity with code review processes. It is a strong plus if you have: (optional) Experience with TypeScript on both frontend and backend. Knowledge of cloud deployment platforms such as Azure or AWS. Background in financial technology, data-intensive applications, or compliance-focused products. Experience with testing frameworks like Jest or Pytest. Language Required for the role: Fluent English Eligibility for the role: Only candidates with an existing legal right to work in the European Union will be considered for this role. #MAKEYourCareerBETTER Interested? Apply now and include your CV (preferably in English) along with a statement confirming your consent to the processing and storage of your personal data.

🏢 Summary: Senior Full Stack Developer role focused on building and maintaining scalable financial-sector applications using .NET and React. The position involves backend and frontend development, API design, automated testing, and collaboration with cross-functional teams in a global engineering environment. 🗂️ Requirements: 6+ years of Full Stack Development experience, Strong knowledge of C#, Strong knowledge of .NET, Strong knowledge of React, Experience with Microsoft SQL Server, Experience with REST APIs, Experience with automated testing, Experience with CI/CD, Experience with Git, Experience with Docker, Understanding of software architecture, Understanding of microservices, Understanding of distributed systems, Strong problem-solving skills, Strong communication skills, Fluent English 📃 Skills: C#, NET, React, SQL, REST, Git, Docker, CI/CD, Microservices 🏢 Description: Senior Full Stack Developer (.NET & React) We are looking for an experienced Senior Full Stack Developer to join a global engineering team building business-critical applications for the financial sector. You will be responsible for designing, developing, and maintaining scalable backend services and modern web applications, working closely with business stakeholders and cross-functional teams. Responsibilities Design, develop, and maintain applications using C#/.NET and React . Build scalable APIs and responsive user interfaces. Collaborate with business and technical teams to deliver high-quality solutions. Write automated tests and contribute to CI/CD and DevOps best practices. Support production systems and drive continuous improvements in performance and reliability. Requirements 6+ years of experience as a Full Stack Developer. Strong expertise in C#/.NET , React , and Microsoft SQL Server . Experience with REST APIs, automated testing, CI/CD, Git, and Docker. Good understanding of software architecture, microservices, and distributed systems. Strong problem-solving and communication skills. Fluent English. Nice to Have Experience in the financial services or trading domain. Experience working in distributed, international teams.

🏢 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: Senior Full Stack Developer role focused on building enterprise-grade applications for capital markets and risk using React and C# .NET Core. The position involves developing scalable microservices, REST APIs, modern web UIs, and data-driven solutions in a cloud environment. Responsibilities include CI/CD implementation, event-driven architecture, cloud migration, and Power BI reporting. 🗂️ Requirements: Strong experience with React and TypeScript, Strong experience with C# and .NET Core, Experience building REST APIs, Experience developing microservices and distributed systems, Experience with CI/CD pipelines, Experience with Azure or AWS cloud platforms, Experience with Power BI and data modeling, Strong SQL and database knowledge, Experience with Docker and Kubernetes, Experience in capital markets domain especially credit risk or market risk, Strong understanding of software architecture and system design 📃 Skills: React, TypeScript, JavaScript, C#, DotNetCore, REST, Microservices, Azure, AWS, PowerBI, SQL, Docker, Kubernetes, Kafka, AzureDevOps, Jenkins, GitHubActions 🏢 Description: About the Role We are looking for a Senior Full Stack Developer with strong expertise in React on the frontend and C# .NET Core on the backend to build and enhance enterprise-grade applications in the capital markets and risk domain. The role involves developing scalable microservices, modern web applications, and data-driven solutions in a cloud environment. Key Responsibilities Design, develop, and maintain full stack applications using React and C# .NET Core Build and maintain REST APIs and microservices in distributed environments Develop modern, responsive UI components using React, TypeScript, and modern frontend patterns Work closely with business stakeholders in capital markets and risk domains (credit risk, market risk) Develop and maintain Power BI dashboards and data models for business reporting Implement and maintain CI/CD pipelines and automated deployment processes Contribute to event-driven architecture using tools such as Kafka or similar messaging technologies Participate in cloud migration and modernization initiatives (Azure or AWS) Ensure code quality through testing, code reviews, and best engineering practices Mentor junior developers and contribute to architectural decisions Requirements Strong experience with React, JavaScript/TypeScript Strong experience with C#, .NET Core, REST APIs Experience building microservices and distributed systems Experience with CI/CD tools (Azure DevOps, Jenkins, GitHub Actions) Experience with Azure or AWS Experience with Power BI and data modeling Strong SQL and database knowledge Experience with Docker / Kubernetes Experience working in capital markets , especially credit risk or market risk Strong understanding of software architecture and system design Excellent communication skills and experience working with business stakeholders

🏢 Summary: Senior Full Stack Engineer role focused on building and maintaining scalable end-to-end web applications in the financial industry using modern frontend and backend technologies. The position involves full-stack development, database optimization, API integration, AI-assisted coding tools, and collaboration with cross-functional and DevOps teams. The offer includes flexible remote work, professional development programs, certifications, and comprehensive benefits. 🗂️ Requirements: Bachelor's or Master's degree in Computer Science, Software Engineering or related field, 5+ years of experience as a Full Stack Engineer, Proficiency in React, Proficiency in JavaScript, Proficiency in Python, Experience with FastAPI, Flask or Django, Knowledge of SQL Server, Snowflake and PostgreSQL, Understanding of RESTful API design principles, Experience building and consuming APIs, Proficiency in Git, Strong knowledge of data structures and algorithms, Ability to troubleshoot and debug backend systems, Experience working in collaborative development environments, Communication and teamwork skills 📃 Skills: React, JavaScript, Python, FastAPI, Flask, Django, SQL, SQLServer, Snowflake, PostgreSQL, REST, Git, Cursor, Claude, Codex, MongoDB, Redis, AWS, Azure, GCP, Docker, Kubernetes 🏢 Description: We are seeking a skilled and versatile Senior Full Stack Engineer to join our dynamic development team, combining strong programming and data management expertise with familiarity with financial instruments. You will design, develop and maintain end-to-end software applications and systems, from frontend to backend, leveraging a modern technology stack to build scalable and high-quality solutions within the financial industry domain. Responsibilities Design, implement and optimize responsive, user-friendly web interfaces using the latest UI/UX technologies Develop and maintain server-side components of software applications Monitor and optimize performance, scalability and reliability of backend systems Collaborate with cross-functional teams including data engineers, product managers and designers to ensure seamless integration of frontend and backend components Write clean, efficient and well-documented code following best practices and coding standards Use AI coding agents such as Cursor, Claude Code and Codex Build and optimize database structures and queries for efficient data storage and retrieval Perform thorough testing and debugging to identify and resolve issues or bottlenecks Stay updated with industry trends and propose improvements to backend architecture and development processes Participate in code reviews to maintain code quality and mentor junior developers Partner with DevOps engineers to deploy and maintain applications in production environments Provide technical guidance and support to team members as needed Requirements Bachelor's or Master's degree in Computer Science, Software Engineering or a related field 5+ years of experience as a Full Stack Engineer developing scalable web applications, with strong proficiency in computer science fundamentals such as data structures and algorithms Proficiency in React, JavaScript and Python Experience with FastAPI, Flask or Django Knowledge of relational databases such as SQL Server, Snowflake and PostgreSQL Background in the Financial Industry or curiosity to learn and engage in Private Equity/Credit business domains Understanding of RESTful API design principles and experience building and consuming APIs Proficiency in Git and collaborative development workflows Strong problem-solving skills and ability to troubleshoot and debug complex backend issues Excellent communication and collaboration skills with the ability to work effectively in a team environment Nice to have Familiarity with NoSQL databases like MongoDB or Redis Knowledge of Accounting or Advent Geneva Understanding of Data Engineering tools and platforms such as data pipelines and data lakes Experience with cloud platforms like AWS, Azure or Google Cloud Platform and containerization technologies like Docker or Kubernetes Experience in bank loans/leveraged loans, fixed-income products, CLOs, derivatives, ABS and CMBS products We offer We gather like-minded people: Engineering community of industry professionals Friendly team and enjoyable working environment Flexible schedule and opportunity to work remotely within Poland Chance to work abroad for up to 60 days annually Business-driven relocation opportunities We provide growth opportunities: Outstanding career roadmap Leadership development, career advising, soft skills, and well-being programs Certification (GCP, Azure, AWS) Unlimited access to LinkedIn Learning, Get Abstract, Cloud Guru English classes We cover it all: Stable income (Employment Contract or B2B) Participation in the Employee Stock Purchase Plan Benefits package (health insurance, multisport, shopping vouchers) Strategically located offices featuring entertainment and relaxation zones, table tennis and football, free snacks, fantastic coffee, and more Referral bonuses Corporate, social and well-being events Please, note: The set of bonuses might vary based on the role you apply for – specifics will be discussed with our recruiter during the general interview. We will reach out to selected candidates exclusively. EPAM is a leading global provider of digital platform engineering and development services. We are committed to having a positive impact on our customers, our employees, and our communities. We embrace a dynamic and inclusive culture. Here you will collaborate with multi-national teams, contribute to a myriad of innovative projects that deliver the most creative and cutting-edge solutions, and have an opportunity to continuously learn and grow. No matter where you are located, you will join a dedicated, creative, and diverse community that will help you discover your fullest potential.

🏢 Summary: Senior Full Stack Engineer role focused on building scalable end-to-end web applications for the financial industry using modern frontend, backend and database technologies. The position involves developing responsive interfaces, backend systems, APIs and database solutions while collaborating with cross-functional teams and DevOps. The offer includes remote work flexibility, professional development programs, certifications and comprehensive benefits. 🗂️ Requirements: Bachelor's or Master's degree in Computer Science, Software Engineering or related field, 5+ years of experience as a Full Stack Engineer, Strong knowledge of data structures and algorithms, Proficiency in React, Proficiency in JavaScript, Proficiency in Python, Experience with FastAPI, Flask or Django, Experience with SQL Server, Snowflake or PostgreSQL, Understanding of RESTful API design, Experience building and consuming APIs, Proficiency in Git, Ability to troubleshoot and debug backend systems, Strong communication and collaboration skills 📃 Skills: React, JavaScript, Python, FastAPI, Flask, Django, SQL, SQLServer, Snowflake, PostgreSQL, REST, Git, MongoDB, Redis, AWS, Azure, GCP, Docker, Kubernetes, Cursor, Claude, Codex 🏢 Description: We are seeking a skilled and versatile Senior Full Stack Engineer to join our dynamic development team, combining strong programming and data management expertise with familiarity with financial instruments. You will design, develop and maintain end-to-end software applications and systems, from frontend to backend, leveraging a modern technology stack to build scalable and high-quality solutions within the financial industry domain. Responsibilities Design, implement and optimize responsive, user-friendly web interfaces using the latest UI/UX technologies Develop and maintain server-side components of software applications Monitor and optimize performance, scalability and reliability of backend systems Collaborate with cross-functional teams including data engineers, product managers and designers to ensure seamless integration of frontend and backend components Write clean, efficient and well-documented code following best practices and coding standards Use AI coding agents such as Cursor, Claude Code and Codex Build and optimize database structures and queries for efficient data storage and retrieval Perform thorough testing and debugging to identify and resolve issues or bottlenecks Stay updated with industry trends and propose improvements to backend architecture and development processes Participate in code reviews to maintain code quality and mentor junior developers Partner with DevOps engineers to deploy and maintain applications in production environments Provide technical guidance and support to team members as needed Requirements Bachelor's or Master's degree in Computer Science, Software Engineering or a related field 5+ years of experience as a Full Stack Engineer developing scalable web applications, with strong proficiency in computer science fundamentals such as data structures and algorithms Proficiency in React, JavaScript and Python Experience with FastAPI, Flask or Django Knowledge of relational databases such as SQL Server, Snowflake and PostgreSQL Background in the Financial Industry or curiosity to learn and engage in Private Equity/Credit business domains Understanding of RESTful API design principles and experience building and consuming APIs Proficiency in Git and collaborative development workflows Strong problem-solving skills and ability to troubleshoot and debug complex backend issues Excellent communication and collaboration skills with the ability to work effectively in a team environment Nice to have Familiarity with NoSQL databases like MongoDB or Redis Knowledge of Accounting or Advent Geneva Understanding of Data Engineering tools and platforms such as data pipelines and data lakes Experience with cloud platforms like AWS, Azure or Google Cloud Platform and containerization technologies like Docker or Kubernetes Experience in bank loans/leveraged loans, fixed-income products, CLOs, derivatives, ABS and CMBS products We offer We gather like-minded people: Top tech minds driving innovation in AI, cloud and digital platform modernization Supportive team and agile, startup-like culture Hybrid by design mode and opportunity to work remotely within Poland Chance to work abroad for up to 60 days annually Business-driven relocation opportunities We provide growth opportunities: Career development programs Thought leadership, mentoring, soft skills and well-being programs Certification (Anthropic, Gemini, GCP, Azure, AWS) English classes We cover it all: Stable pay Participation in the Employee Stock Purchase Plan with a 15% discount Benefits package (health insurance, multisport, shopping vouchers) Referral bonuses up to $2,000 Offices featuring entertainment and relaxation zones, table tennis and football, free snacks, coffee and more Corporate, social and well-being events Please, note: Benefits listed above are available to employees only We are open for working with Contractors. Terms of B2B cooperation agreements are agreed individually We will reach out to selected candidates exclusively EPAM is a leading global provider of digital platform engineering and development services. We are committed to having a positive impact on our customers, our employees, and our communities. We embrace a dynamic and inclusive culture. Here you will collaborate with multi-national teams, contribute to a myriad of innovative projects that deliver the most creative and cutting-edge solutions, and have an opportunity to continuously learn and grow. No matter where you are located, you will join a dedicated, creative, and diverse community that will help you discover your fullest potential.