Top Front End Developer Jobs in Poland

Develop and maintain React.js user interfaces, reusable components, and front-end libraries. Optimize application performance across browsers and devices, translate designs into code, collaborate with product and backend teams, write tests, debug production issues, and maintain modern React development practices and tools.

Build core web experiences for Chat, Notes, Calendar, Docs, and Sheets. Own frontend architecture, complex interactive features, real-time collaboration, rich-text editing, scheduling, spreadsheets, streaming AI integrations, performance, accessibility, and reliability. Collaborate with product, design, backend, and AI teams to take features from concept through production.

Develop and maintain distributed systems for internal and external clients, including frontend and backend applications. Responsibilities include technical design, coding, configuration, unit and performance testing, defect resolution, production support, troubleshooting, code reviews, continuous integration and deployment, and technical guidance for junior developers. The role also researches technologies, develops proofs of concept, documents designs, and promotes engineering best practices.

Develop user interfaces for mission-critical operations, focusing on map-driven web applications for monitoring and predicting flight trajectories.

Design, architect, implement, and maintain React and TypeScript web applications. Develop responsive HTML/CSS pages and email templates optimized for SEO and Core Web Vitals. Write unit and integration tests, solve technical challenges, collaborate with the team, and take ownership of project delivery. Preferred experience includes Redux, React Query, Jest, Cypress, and SSR/SSG frameworks such as Next.js, Astro, or Remix.

Own complex frontend features across web and mobile, design React and React Native systems, improve rendering and runtime performance, and build reusable abstractions. Collaborate with product, backend, and QA teams to deliver simple user experiences. Maintain quality through code reviews and unit, end-to-end, and visual-regression testing. Mentor colleagues and help raise frontend engineering standards.

Shape frontend architecture and engineering direction across React, React Native, and shared monorepo teams. Own platform capabilities, shared libraries, design-system foundations, developer tooling, performance, testing, migrations, and developer experience. Diagnose systemic web and mobile issues, remain hands-on with implementation and technical investigation, influence cross-team decisions, partner with product and QA, and mentor senior engineers. This is an individual contributor role focused on sustained organizational impact rather than people management.

As a Senior Frontend Developer, you will work with React and Angular, manage a frontend team, mentor juniors, and design architecture while focusing on testing and quality assurance.

Build and maintain user-facing features and interfaces for Restream web services. Design and implement UI and business logic, collaborate with product designers and engineers, perform code reviews, improve reliability and scalability, and evaluate emerging technologies.

Design and implement complex customer-facing frontend features using TypeScript and React. Provide technical leadership, mentor junior engineers, drive frontend architecture and best practices, improve performance and accessibility, partner with product/design, integrate with backend APIs, and manage technical debt and scalability.

Develop modern mobile applications using React Native and TypeScript, optimize performance, conduct testing, and collaborate within Agile teams.

The Frontend Developer will work on diverse projects using ReactJS and related technologies, contributing to agile development and team collaboration.

Seeking a Frontend Developer with 2+ years experience, proficient in React, JavaScript, and Node.js, with strong communication skills.

Design, develop, test, and maintain SAP HCM full‑stack solutions: build SAP Fiori/UI5 frontends, create OO‑ABAP backend logic and OData services, troubleshoot HCM modules (PA, OM, PY, TM), integrate with external platforms, automate background jobs, and support deployments in an Agile/BizDevOps pipeline.

Develop frontend business applications for broadband and mobile services using React and TypeScript. Responsibilities include designing technical solutions, implementing automated and integration tests, evaluating UX concepts, participating in agile planning, reviewing code, fixing bugs, supporting production releases, and transferring knowledge to internal teams. The role involves close collaboration with product, business, UX, and architecture stakeholders in a hybrid work environment.

Build and improve Restream’s web interfaces and user-facing features for the AI Clips team. Design UI and business logic, collaborate with product designers, participate in code reviews, improve system reliability, and evaluate emerging technologies. The role requires strong JavaScript and TypeScript expertise, advanced React knowledge, CSS preprocessor experience, and familiarity with backend development, cloud infrastructure, containers, and continuous deployment.

Develop and deliver innovative HR Tech SaaS solutions, collaborate with product teams, participate in Agile practices, mentor peers, and ensure high-quality standards.

Build and maintain production front-end features with React and Next.js, implement responsive UX, integrate with REST APIs, improve architecture and performance, collaborate with backend and product, participate in code reviews, and work fully on-site in Mostar.

Design, build, and maintain scalable, high-performance React/TypeScript web applications and frontend SDKs. Integrate with REST and GraphQL backends, implement secure auth (OAuth/JWT), translate Figma into accessible component architectures, and ensure code quality via unit and E2E tests. Collaborate with product, backend, and design teams to optimize client-side performance and deliver polished commerce workflows.

Greet customers, pack and carry groceries to customers' cars, maintain front-end cleanliness, restock supplies, and provide friendly customer service during varied shifts including weekends and holidays.

Year-round front-end store role providing high-level customer service, packaging groceries efficiently, multitasking in a fast-paced environment, and maintaining attention to detail. Requires availability during store hours and at least 18 hours/week.

Assist customers by bagging groceries, escorting groceries to cars, and providing friendly, high-quality service. Maintain store cleanliness and safety, multitask in a fast-paced environment, and work as part of a team. Must meet scheduling and hourly minimums.

As a Frontend Engineer, you will build and enhance frontend solutions for financial configurations, develop internal tools, and create customer-facing interfaces, ensuring high performance and quality in financial applications.

The Staff/Lead Fullstack Engineer will enhance the Mimica Webapp by architecting scalable UI components, managing large datasets, and optimizing performance while collaborating with cross-functional teams.

Design and implement developer-facing UI from Figma to production using Hotwire (Turbo + Stimulus) and ViewComponents. Own the dashboard, API playgrounds, docs, marketing site, and data visualization. Optimize performance and bundle size, maintain a coherent component system, and ship polished, production-ready front-end with tests and CI/CD.