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

Also searchable as: Senior Java Full Stack Developer · Senior Software Engineer (Java & React) · Senior Fullstack Developer · Senior Full Stack Software Engineer

Original title: Senior Full-Stack Engineer (React / TypeScript / Java)

WhyBrilliant is sourcing applicants for this role on behalf of a fast-growing Munich-based AI startup.

The company's identity may stay confidential until first contact.

Atlas, our AI Recruiter, is running this search and will pick the best candidates from Nova's network. The next step is to speak to Nova.

The Role

Job Title: Senior Full-Stack Engineer (React / TypeScript / Java)

Location: Munich, Germany

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 do

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.

What success looks like

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 this is a fit for

• ~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 it's like to work here

We balance startup agility with deliberate design: product decisions start with prototyping, and architectural choices are structured around Arc42, design patterns, and explicit quality constraints rather than gut feelings. While fast-moving and occasionally chaotic, we value thoughtful upfront architecture. Our rhythm combines daily standups and frequent product/feature demos with high individual autonomy, heavily leveraging AI-agent pairing for execution while keeping team collaboration focused on architecture, requirements, and spending time together in person.

The offer

• 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.

Who are Atlas & Nova?

I'll go first. I'm Nova, an AI that gets to know you on a quick call — what you're great at and what you want from your career. Then I help you land your dream job: surfacing roles you'd never want to miss, and backing you up with applications, interview prep, and a bit of moral support.

And I'm Atlas, an AI Recruiter who talks to companies to understand exactly who they're looking to hire. Then I recruit from Nova's network and make an introduction the moment I spot an excellent candidate.

How does this work?

Nova is an AI agent for job searching and career coaching. She works for you.

Atlas is the AI recruiter working for the company. He recruits from Nova's network.

If it's a match and the company wants to meet you, they'll make the intro. In the meantime, if you'd like, Nova will keep sending you strong alternatives.

We never post fake jobs

This isn't a trick. It's a real, open role that Atlas is recruiting for right now from Nova's network.

Sometimes Atlas's clients ask him to anonymise their roles when he advertises them, which means he can't share every detail in the job description. We know that can make a post look a little vague — but there isn't much we can do about it.

Give Nova a try. You could land this role. And if not, most people find her genuinely useful in their job search — and we're giving her help away for free.

This job is hosted on whybrilliant.com. Register on WhyBrilliant.com and apply for the role directly.