Senior Full-Stack Engineer (React / Typescript / Java)

We are a high-momentum Munich-based AI startup pairing rapid frontend prototyping and product design with deliberate architecture and AI-assisted execution. As a senior full-stack engineer, you'll prototype intuitive user experiences in Storybook before building out robust full-stack features alongside the CTO and experienced peers. Why this role matters We are scaling our engineering team past 6+ developers and need an experienced, versatile full-stack builder who excels at frontend craft and rapid design prototyping. We design and iterate directly in Storybook before building, ensuring exceptional user experience before locking in our robust Java/Spring backend architecture. Your contributions will directly accelerate our product velocity and lift our frontend and design standards across the board. What you'll own End-to-end feature delivery, rapid UI prototyping, and full-stack development across our core platform. • Rapidly prototype, iterate, and refine UI designs in Storybook before building production code. • Design, build, and ship polished frontend experiences using React, TypeScript, and modern design systems. • Build robust, scalable backend services and APIs using Java and Spring Boot. • Collaborate closely with the CTO and senior developers on domain modeling (DDD/Arc42), testing (TDD/BDD), and heavy execution. • Leverage AI-agent pairing workflows and modern CI/CD automation on Azure and Kubernetes to maximize development velocity. • Coach and support junior engineers through active code reviews, pairing, and shared UI/craft standards. Your first 90 days • Month 1: Ramp up on our product domain, explore our Storybook setup, and deliver your first rapid UI prototypes and production-ready contributions. • Month 2-3: Ship end-to-end features with polished UI design, tackle complex full-stack tasks alongside the CTO and senior peers, and introduce constructive design system or tooling improvements. • By end of Q1: Operate as an autonomous senior contributor and trusted peer in the Munich office who collaborates closely with the team and shares new prototyping or frontend techniques. Who you are • ~7+ years of software engineering experience delivering robust, production-grade applications. • Strong product and visual design sensibility with deep hands-on expertise in React, TypeScript, and Storybook. • Solid backend proficiency building services with Java and Spring Boot. • Dedicated practitioner of clean code, automated testing (TDD/BDD), and rapid prototyping. • Comfortable collaborating closely as a peer and mentoring junior developers in a flat team. • Based in Munich (or relocating) for regular in-office collaboration. What you'll get • High autonomy to shape product design, iterate rapidly in Storybook, and influence architecture. • Direct collaboration and high trust alongside the CTO and senior peers in a flat setup. • Modern AI-agent pairing workflows that supercharge individual delivery and eliminate busywork. • A culture that values thoughtful upfront prototyping, clean design, and deliberate engineering. • Energetic in-person team collaboration in the heart of Munich. This probably isn't for you if... • You prefer pure backend work and dislike hands-on UI design, prototyping in Storybook, or frontend craft. • You are looking for a formal technical lead title or hierarchical management role rather than direct hands-on building. • You prefer purely remote work and do not want regular face-to-face collaboration in Munich. Let's talk If you are an experienced builder who thrives on fast-paced UI prototyping, modern frontend craft, and robust backend engineering in a flat team, let's talk. Apply with a link to your GitHub, Storybook, or design work to start the conversation. Find more English Speaking Jobs in Germany on Arbeitnow