Top Front End Developer Jobs in Berlin

Develop end-to-end AI product features using LLM APIs, build and optimize RAG and retrieval pipelines, design agent orchestration for legal workflows, implement scalable FastAPI/Python backends, create evaluation/benchmarking infrastructure, ensure security and data privacy, and collaborate with Product and Legal Engineering to prototype and refine legal AI features.

Drive end-to-end product development for iTero 3D imaging systems by translating clinical needs into software requirements, leading cross-functional agile teams, driving ML diagnostic initiatives from PoC to productization, analyzing clinical usage data for improvements, and embedding customer feedback into product decisions to enhance usability, performance, and clinical value.

As a Senior Frontend Engineer at 8returns, you'll design and implement user interfaces, manage the entire frontend process, and collaborate with merchants and founders to enhance user experience.

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.

Lead frontend architecture and delivery for complex Web3/DeFi applications. Build UIs for lending, trading, staking, bridging, and stablecoins; mentor engineers; collaborate with founders, smart contract and backend teams; align with customers on scope and timelines; ensure performance, quality, and secure production-grade products.

Lead modernization of frontend architecture for React Native mobile apps and supporting React web surfaces. Improve performance, reliability, accessibility, developer experience, testing and CI/CD. Drive large-scale refactors, establish best practices, mentor senior engineers, and collaborate across backend, product, and design to deliver scalable, high-quality user experiences.

As a Cloud-Native Frontend Developer Intern, you'll assist in developing innovative software solutions, focusing on micro frontends and application deployment while working closely with experienced team members.

Build interactive AI-driven agent types inside a complex React+TypeScript editor and extend the video player. Own frontend features end-to-end (UI, state, logic), implement real-time interactions, collaborate with product/design, and make small Node.js backend changes to ship interactive learning experiences.

Design and implement modern, high-performance frontend solutions within a headless CMS architecture using Vue.js/Nuxt. Collaborate in a cross-functional DevSecOps team, influence system design and architecture, ensure code quality, performance and security, and work with product owners and stakeholders to deliver scalable customer-facing platforms.

Lead KoRo's unified product and engineering organization, owning customer-facing storefront, ERP/operations, integrations, and data platform. Set product vision and prioritized roadmap, drive commercial and operational outcomes, hire and develop senior leaders, ensure engineering delivery and reliability, scale into new markets, and embed experimentation and data-informed decision-making.

Own and build high-traffic e-commerce frontends using TypeScript, Vue 3 and Nuxt 3. Implement UX and conversion-focused features, ensure pixel-perfect designs, maintain code quality with testing (Vitest/Playwright/Jest), collaborate across product and engineering, and contribute to architecture and design systems.

Lead frontend engineering for high-traffic eCommerce UIs using TypeScript and modern frameworks (Vue 3/React). Architect features to improve UX and conversion, drive projects end-to-end, collaborate with cross-functional teams, mentor peers, and participate in technical decision-making and retrospectives.

The Senior Frontend Engineer will lead the development of frontend features, ensuring high-quality delivery and collaboration with cross-functional teams. Responsibilities include architectural design, code reviews, and maintaining frontend systems while focusing on user experience and performance.

Build and maintain agentic, AI-powered frontend features across Scalable's products. Work in a cross-functional Data Science & AI team to design, implement, and ship components (CLI, MCP server, agentic chat), lead technical discussions, make architecture decisions, and ensure code quality, security, testability, and scalability.

Contribute to the React frontend codebase, write clean testable TypeScript code, implement integrations for A/B tests and feature flags, collaborate with backend and product teams, and learn under senior engineer mentorship while using AI-assisted development tools.

Build and maintain scalable React + TypeScript frontend applications and AI agent interfaces, integrate with backend APIs and AI systems, implement component-based architecture, ensure performance, accessibility, testing, and collaborate within a small cross-functional product squad.

The Senior Frontend Engineer will manage the frontend codebase, enhance CI/CD pipelines, maintain shared libraries, and improve platform observability while collaborating with product teams to drive performance and reliability.

Lead architecture and delivery of Zalando's B2B ZEOS platform: design scalable React/TypeScript frontends and Node.js services, drive micro‑frontend and SPA strategies, ensure secure AWS/Kubernetes deployments with OpenID/Okta, foster CI/CD, testing, and design system maturity, and align multi-disciplinary teams and stakeholders.

As a Front-End Web Developer, you will create responsive, user-friendly web applications, collaborating with designers and back-end developers to optimize user interfaces.

Oversee product development, develop visual layouts and UI/UX, write reusable code, optimize applications, and collaborate with engineers.

Join the ZEOS B2B Platform team to build React + TypeScript user interfaces within a micro-frontend and SPA architecture. Implement features end-to-end, collaborate on API contracts and design, maintain code quality and performance, use CI/CD, and operate production services with AWS/Kubernetes.

Join a cross-functional team to build and maintain a React/TypeScript web application: develop UI features, review code, make architectural decisions, collaborate with UX and product, plan projects with stakeholders, and mentor junior developers.

Design and build publisher-facing web interfaces using TypeScript and React, integrate with backend via GraphQL and PHP, maintain and improve features and infrastructure, and collaborate with product, design, and engineering to deliver user-centric solutions.

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.

Build, test, and optimize responsive web applications using Next.js and React. Collaborate with designers and back-end engineers to implement high-performance, cross-browser UIs, manage state with Redux/Context API, integrate RESTful APIs, and debug front-end issues while following best practices and maintaining clean, scalable code in a remote team.