Senior React Developer w Warszawa, Polska is listed on Jobeax. Browse 130,000+ vacancies available.
SNI is serving as a trusted IT Outsourcing partner in line with the needs of World's most prestigious firms and carried out successful projects worldwide. Responsibilities: Partner with product and design to shape solutions, validate assumptions, and deliver user-facing features. Architect, build, and maintain large-scale React and JavaScript applications, including established codebases. Diagnose and resolve complex dependency, build, integration, and cross-browser runtime issues. Drive automated testing (unit, integration, UI) and maintain CI/CD pipelines through production releases. Optimize app performance, handle production monitoring, and contribute to technical design and estimation. Skills: Extensive experience building scalable web applications using React and core JavaScript. React architecture, state management, component design, WebViews, caching, and modern web standards. CI/CD pipelines, automated testing frameworks, and collaborative Git workflows. Product-minded approach with experience working directly with cross-functional design and product teams. Strong communication skills suited for remote-first environments. Nice to Have WebViews embedded within native iOS/Android applications. Web accessibility standards (WCAG), PWAs, and offline caching patterns. GitHub Actions, AWS CodeBuild, performance optimization and continuous delivery. Follow us on Linkedin!
... biznesowej, przez dane i komunikację asynchroniczną, aż po frontend. Szukamy osoby backend-first, bardzo mocnej w .NET/C#, która jednocześnie potrafi wejść w React/TypeScript i dowieźć funkcjonalność obejmującą cały stack. Stack technologiczny .NET 9 / C# 13 | React 18 / TypeScript | SQL Server | MongoDB / Redis | Azure ...
We are seeking a Senior Sharepoint Frontend Developer to join one of our projects from banking industry. Requirements: At least 5 years of experience developing SharePoint Online solutions using SPFx, React, and TypeScript Strong knowledge of: PnP SPFx Controls, PnPJs. Fluent UI. Microsoft Graph API. Experience developing ...
... 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 (70% frontend / 30% backend) to join a cross-functional engineering team building core components of the AI-driven document processing platform. ...
... https://jobeax.com/link/GrYTXLZMpxEMJknV Core + EF Core, MediatR lub równoważny pattern command/query, MS SQL Server z umiejętnością czytania planów wykonania i świadomego indeksowania. Frontend: React + TypeScript po obu stronach, z zarządzaniem stanem (Redux, Zustand, Jotai) wybranym i uzasadnionym. Chmura: Azure (App Service, Application Insights, Service ...
Projekt realizowany w obszarze usług bankowości elektronicznej dla klientów indywidualnych. Rola obejmuje rozwój nowoczesnych aplikacji frontendowych opartych o React, działających w architekturze mikroserwisowej. Twój zakres obowiązków Implementacja nowych funkcjonalności w aplikacjach frontendowych Rozwój i utrzymanie aplikacji ...
... pracy: 1 FTE / pełny etat Start: ASAP Okres współpracy: minimum 12 miesięcy, z możliwością kontynuacji Język pracy: angielski Poszukujemy doświadczonego Mobile Developera , który dołączy do zespołu rozwijającego nowoczesną aplikację mobilną dla sektora telekomunikacyjnego. Głównym obszarem odpowiedzialności będzie rozwój aplikacji ...
Talanto seeks a Senior Software Engineer to translate broad product ideas into scalable tech, owning features end-to-end. You will design APIs, schemas, and service boundaries, and apply an AI-native workflow using coding agents daily. Ideal candidates have strong TS/Node.js and React/Next.js expertise, with experience ...
Senior Full-Stack Engineer (Java and React) Important: if an employer asks you to log into their system via iCloud or Google, send a code, an SMS or Telegram password, run some code, or install software — refuse. These are signs of fraud. We are seeking a Senior Full-Stack Engineer with strong expertise in Java, Spring ...
... completion of higher education as a qualified IT specialist or university degree in computer science. - At least 2 years of experience working as a Frontend Developer or Fullstack Developer with React . - Experience with object-oriented software development in Java . - Knowledge of web development technologies, including ...
... rozwiązania technologiczne, masz wpływ na produkt, koncentrujesz się na rozwoju produktu, agile Skład zespołu, backend developer, frontend developer, fullstack developer Twój zakres obowiązków, Development End-to-End: Projektowanie i implementacja nowych funkcjonalności (Backend w Java 17/21, Frontend w React 18+)., Architektura: ...
Expected, Java, Kotlin, JavaScript, https://jobeax.com/link/6WcBICn0LM558SP0, Unix, Git, SQL Operating system, Linux About the project, As a Full Stack Developer, you will be working for our client within the Global Markets Technology sector. You will contribute to developing and supporting critical financial applications, ...
... with ERP, financial, or other enterprise business applications. Knowledge of C/C++. Experience with AI integrations, APIs, Model Context Protocol (MCP), or developer platforms. Experience mentoring senior engineers and working in distributed international teams. Additional Information Work model: Remote Type of contract: ...
... Microsoft technologies, including .NET, SQL Server, and a broad set of Azure services. We leverage Docker, Kubernetes, and modern web technologies (TypeScript, React), as well as open standards such as OData, OAuth, OpenTelemetry We are seeking a Senior Full Stack Developer to advance the AI enablement of our Product Lifecycle ...
... fullstack Generative AI applications, integrating advanced LLMs, image, and multimodal models into scalable products. Develop and maintain both frontend interfaces (React, https://jobeax.com/link/Z30sZYC3jcRenVso, etc.) and backend systems (Python, https://jobeax.com/link/JSd7UYCSg572jJDY, or similar) that power GenAI features. ...
... between speed and maintainability., Agile Rituals: Participate actively in dailies, retrospectives, and planning meetings., Tooling: Use a robust stack including React and TypeScript.] Requirements: React, TypeScript, https://jobeax.com/link/Z30sZYC3jcRenVso, REST, SEO, Microservices Additionally: Private healthcare, Flexible ...
... Seamlessly integrate third-party services and APIs, ensuring robust error handling and graceful degradation. - Continuously enhance system performance and developer experience through thoughtful automation and refactoring. - Diagnose and resolve complex issues across the stack while proactively identifying opportunities ...
... https://jobeax.com/link/JSd7UYCSg572jJDY, Express, SQL, Oracle, PostgreSQL, Docker, Kubernetes, Terraform, AWS About the project, Your role, Our cross functional teams of developers, UI/UX designers, business analysts and project managers are responsible for end-to-end enterprise application development process using various modern technologies ...