Top Front End Developer Jobs in Poland

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.

Own and build the frontend for Alternative Payment Methods: create and maintain SPAs for Hub and Olimp, integrate new APMs into the payment form, improve merchant UI/UX, collaborate with Go backend engineers on Buf/Connect RPC contracts, and establish frontend patterns, tooling, and review practices for the team.

Develop and maintain React and Next.js web applications for mobile and desktop. Responsibilities include improving performance, quality, responsiveness, security, and code reliability; troubleshooting bugs and bottlenecks; developing distributed microservices and REST APIs; participating in agile scrums; collaborating with cross-functional and offshore teams; testing applications; and sharing technical knowledge through workshops.

Develop and maintain high-quality React and Next.js applications for mobile and desktop. Responsibilities include writing reusable code, optimizing performance, troubleshooting bugs, collaborating with cross-functional and offshore teams, participating in Agile ceremonies, maintaining code quality, testing applications, and sharing technical knowledge. The role requires strong JavaScript and TypeScript expertise, web security and performance knowledge, distributed microservices experience, cloud development, responsive design, and modern frontend testing practices.

The Software Engineer will design and maintain payment processing systems, mentor other engineers, and ensure security in client transactions within the crypto ecosystem.

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.

The Frontend Engineer will develop a graphic interface for a SaaS simulation platform, requiring strong software engineering skills and proficiency in Angular, HTML, and CSS.

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 scale customer-facing eCommerce and subscription experiences using React and Next.js. Translate designs into responsive, accessible, high-performance features, integrate APIs and third-party services, optimize Core Web Vitals, write tested code, review pull requests, resolve bugs, and own projects through deployment. Collaborate with product, design, marketing, backend engineering, and operations while contributing to architecture and engineering process improvements.

Lead frontend architecture and technical strategy for scalable CMS and consumer-facing gaming applications. Improve frontend infrastructure, Core Web Vitals, SEO, PageSpeed, code quality, and development workflows. Lead code reviews, integrate APIs and experimentation tools, manage internationalization systems, and communicate technical progress to product and nontechnical stakeholders across globally distributed teams.

Develop and maintain the React front end, integrate AI tools (Claude Code, MCP/FGMA), connect frontend to backend via APIs/cloud code, optimize performance and accessibility, review and maintain code quality, collaborate with CTO and designer, and own tasks end-to-end.

Lead technical execution for a frontend team building an enterprise low-code platform: implement and review code, define testing and AI-first workflows, enforce quality standards, mentor engineers, drive CI/CD and developer experience improvements, coordinate integrations, and manage technical debt and planning inputs.

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.

The Frontend Developer will create high-quality game front-ends using TypeScript and React, enhancing existing features and ensuring performance while collaborating with the development team.

Lead design and implementation of complex frontend and platform capabilities. Build and maintain shared UI components and design systems, drive modernization and AI-assisted development, improve quality, accessibility, security, and performance, mentor engineers, influence architecture and technical direction, and create internal developer productivity and AI-powered tooling.

Lead the Pro team to design, develop, and deliver frontend systems for Kraken's trading interface, focusing on user experience and mentoring engineers.

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.

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.

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.

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.

Build and scale developer-focused products and tooling using React and Electron; prototype quickly, contribute to open-source and community growth, work in a small cross-functional team, integrate with Kubernetes and cloud services, consume and design APIs (OpenAPI/GraphQL), and follow Git/GitOps, CI/CD and agile workflows.

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.

Full-Stack Engineer responsible for developing and maintaining front-end and back-end components, collaborating on product solutions, and improving user interfaces.

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.