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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Frontend Engineer (React/TypeScript) - **Company:** Conxai Technologies GmbH - **Location:** München, Germany - **Experience:** Expert - **Contract:** Permanent contract - **Skills:** Clean Code Principles, JavaScript (Programming Language), Multitier Architecture, Application Programming Interfaces (APIs), Artificial Intelligence, Amazon Web Services, Amazon Cloudfront, Amazon S3, Automation of Tests, Cascading Style Sheets (CSS), Software Quality, Code Review, Performance Tuning, Software Architecture, Ui Patterns, Systems Integration, TypeScript, ReactJS, Large Language Models, Backend, Webpack, AI Platforms, Integration Tests, Front End Software Development, React Testing Library, Restful APIs - **Published:** September 5, 2026 - **Apply:** https://startup.jobs/sr-frontend-engineer-react-typescript-munich-conxai-technologies-gmbh-8288211 ## About the Role Required * 5+ years of professional frontend experience * Advanced React & TypeScript expertise * Strong architectural thinking (FSD, Clean Architecture, or similar) * Experience with modern state management * Strong testing mindset (unit & integration) * Experience integrating REST APIs * Strong written and verbal English communication skills * High standards for code quality and maintainability Highly Valued * Experience building complex B2B SaaS products * Knowledge of scalable frontend architecture patterns * Experience with performance optimization * Experience with AWS (Cognito / Amplify / S3 / CloudFront) Nice to Have * Experience in AEC, construction, or document-heavy domains * Exposure to AI/ML integrations in frontend applications * PDF rendering or document processing experience ## Description As a Senior Frontend Engineer, you will play a key role in shaping and evolving a modern, scalable frontend architecture within a complex B2B AI platform. You won't just implement features - you'll design systems. You'll think in terms of structure, boundaries, and long-term sustainability. Your focus will be on building robust, maintainable solutions that can grow with the product and the organization. This role is ideal for someone who: * Takes ownership of architectural decisions * Values clean abstractions and clear domain boundaries * Thinks beyond short-term delivery toward long-term scalability * Enjoys collaborating across teams to align technical direction * Sees frontend engineering as system design, not just UI implementation You will influence how the frontend evolves, contribute to technical standards, and help ensure the platform remains scalable, testable, and maintainable as it grows. What You'll Do Architect & Build at Scale * Develop complex B2B features using React 18 + TypeScript * Work within a structured Feature-Sliced Design (FSD) architecture * Design clean domain boundaries and public APIs between layers * Build reusable features, widgets, and domain entities * Maintain architectural integrity using dependency rules and validation tools Deliver High-Quality Code * Write type-safe, production-grade TypeScript * Implement unit & integration tests (Jest, React Testing Library) * Optimize performance, bundle size, and rendering efficiency * Implement robust error handling and monitoring Build Advanced Product Capabilities * Implement efficient server-state management with TanStack Query * Work on complex UI patterns * Collaborate on AI feature integration (LLM workflows, structured outputs) Collaborate & Lead * Work closely with backend engineers on RESTful APIs * Contribute to architectural decisions and technical planning * Conduct thoughtful code reviews * Mentor mid/junior engineers on architecture and best practices Our Tech Stack * React 18 + TypeScript 5.5+ * Feature-Sliced Design (layered architecture) * TanStack Query + Zustand * Material-UI (MUI v5) + Emotion * SCSS Modules * Webpack 5 * AWS Amplify & Cognito * Jest + React Testing Library + MSW * CI/CD pipelines with automated testing ## Related Videos - [WeAreDevelopers LIVE – Frontend Inspirations, Web Standards and more](https://www.wearedevelopers.com/videos/1761-wearedevelopers-live-frontend-inspirations-web-standards-and-more) - [Micro Frontends with Module Federation: Why and How?](https://www.wearedevelopers.com/videos/165-micro-frontends-with-module-federation-why-and-how) - [Watch Tests Go Brrrr! : Getting Started with Cypress in ReactJS](https://www.wearedevelopers.com/videos/282-watch-tests-go-brrrr-getting-started-with-cypress-in-reactjs) - [Developing the Backend with Stefan Lingler, CTO at Shpock](https://www.wearedevelopers.com/videos/100360-developing-the-backend-with-stefan-lingler-cto-at-shpock) - [Meet Your New BFF: Backend to Frontend without the Duct Tape](https://www.wearedevelopers.com/videos/682-meet-your-new-bff-backend-to-frontend-without-the-duct-tape) - [Micro-Frontends with Module Federation: Beyond the Basics](https://www.wearedevelopers.com/videos/298-micro-frontends-with-module-federation-beyond-the-basics) ## Related Articles - [Frontend Developer Salary in Germany [2023]](https://www.wearedevelopers.com/magazine/195-frontend-developer-salary-in-germany-2023) - [Tech Conferences Germany: The Best Tech Events For 2023](https://www.wearedevelopers.com/magazine/181-tech-conferences-germany-the-best-tech-events-for-2023) - [c't <webdev> 2023](https://www.wearedevelopers.com/magazine/307-c-t-webdev-2023) - [The Biggest German Tech Companies](https://www.wearedevelopers.com/magazine/424-the-biggest-german-tech-companies) - [Best Coding Boot Camps in Germany](https://www.wearedevelopers.com/magazine/237-best-coding-boot-camps-in-germany) - [16 Best Free React UI Libraries in 2025](https://www.wearedevelopers.com/magazine/148-16-best-free-react-ui-libraries-in-2025)