Top Front End Developer Jobs in Poland

The Senior Frontend Engineer at ClickUp will collaborate with backend teams to develop features, ensure code quality, manage projects, and resolve performance issues using Angular and associated technologies.

As a Staff Frontend Engineer, you'll develop features in Angular, collaborate with teams, manage project priorities, resolve performance issues, and ensure code quality through tests.

Full-stack Developers at QuantCo build user interfaces for machine learning solutions, collaborating with data scientists and engineers to deliver actionable products.

Own end-to-end features across Java backends and a TypeScript/Angular frontend for a multi-tenant SaaS platform. Design APIs, schema and queries (MySQL/ClickHouse), build performant UIs, write unit/integration/e2e tests, deploy via containers/CI-CD, and integrate LLM/agentic workflows to help users find and fix data quality issues.

Lead frontend work on a TypeScript/Angular product, owning component architecture, state management, performance, and tests. Build data-dense UIs and Storybook-driven components, ship agentic (LLM) features, shape APIs and implement backend Java endpoints, write SQL, mentor engineers, and work directly with product, design, and customers to deliver end-to-end features.

Lead front-end technical strategy across multiple teams for a complex, data-dense merchant platform. Own architecture, component systems, state management, performance, accessibility, and front-end observability. Mentor engineers, drive cross-team alignment, and partner with Product, Design, and backend engineers to deliver a cohesive merchant experience including the Primer AI Companion.

Build and own merchant-facing frontend projects end-to-end. Lead frontend architecture, produce RFCs/ADRs, create composable performant accessible UI, monitor production impact, respond to incidents, and mentor engineers while ensuring high code quality and measurable outcomes.

Join Cerebras Systems to optimize and develop frontend compiler infrastructure for PyTorch models on their unique wafer-scale AI platform, focusing on model representation and optimization.

Freelance frontend developer to build web (React) and mobile (Flutter) apps, create and maintain component libraries/design systems, implement AI-ready code architecture and documentation, work within CI/CD workflows, and collaborate remotely with English communication.

Design and maintain a modular, high-performance frontend: implement a pixel-perfect design system, optimize rendering and bundle sizes, architect client-side state for real-time data, integrate complex APIs, and ensure global availability and operational readiness for a Web3 consumer platform.

Lead front-end engineer on the Mapper Team building scalable data-visualization and real-time multi-user front-end features. Own end-to-end projects, contribute to architecture and processes, mentor peers, participate in hiring, and deliver high-performance, testable, maintainable UI code.

Build and maintain responsive, high-performance user interfaces using React and modern front-end technologies. Translate UI/UX designs into reusable code, integrate with backend APIs, optimize performance and cross-browser compatibility, and contribute to testing, code reviews, and engineering best practices in a product-driven, remote environment.

The role involves developing high-quality Vue.js applications, creating interactions, collaborating with back-end engineers, and writing tests.

Serve as a senior Java full-stack engineer building and maintaining backend services for blockchain applications, integrate APIs with React/Vue frontends, design scalable enterprise blockchain solutions, troubleshoot complex backend issues, and collaborate with cross-functional teams to apply best practices.

The role involves building creative tools for content editing, enhancing features with PixiJS and WebGL, and improving collaboration workflows.

The Frontend Product Engineer will develop and maintain the core booking engine, build user-facing features, write tests, and collaborate across various tech teams.

Own and evolve a multimodule Angular frontend for maritime operations. Build domain-rich UI components, integrate real-time data feeds, collaborate with .NET backend engineers, ship via Azure DevOps CI/CD, and maintain observability and high code quality.

Build and maintain a large-scale React + TypeScript frontend, own complex UI components (search, filters, maps, tables), design frontend data flows with REST/BFF, integrate Auth0/PostHog/Sentry and mapping engines, optimize performance, ship via GitHub Actions CI/CD, and contribute to architecture and UX decisions.

Develop next-gen HR Tech SaaS products, manage Agile development activities, drive quality culture, mentor teams, and solve complex problems.

As a Frontend Software Engineer, you will build user interfaces for Amplemarket's sales platform, collaborating with co-founders and cross-functional teams to enhance product usability and user experience.