Senior Fullstack Engineer (d/f/m)

Berlin

Full-time

Permanent employee

Your mission

At Rulemapping, we make legislation machine-readable. You build the web applications through which public authorities and companies work with this technology, from the React frontend to the NestJS backend, in close collaboration with UX and Product Management.

You develop performant, maintainable frontend components with React, Panda CSS, and TanStack Router, working closely with UX/UI (Figma) and Product Management on user-centered features.
You implement and maintain scalable REST backends in NestJS, with clean architectural principles and clear API design.
With PostgreSQL, you own database design, query optimization, and migrations, integrate Keycloak for authentication, and connect the Rulemapping Automation Backend securely.
AI tools like Claude Code are part of your daily development work, for code generation, refactoring, and tests. You keep code quality high with ESLint, Prettier, Vitest, Jest, Playwright, and structured code reviews.
You contribute to architecture decisions, knowledge sharing in the team, and the build-out of our CI/CD pipelines (GitHub Actions, cloud deployment), and evaluate new technologies to keep the platform technically current and scalable for the long term.

Your profile

Several years of experience building fullstack web applications. Whether with a computer science degree or self-taught with demonstrable practice, what matters is what you have built.
Deep understanding of TypeScript, React, and PostgreSQL. Python skills are a plus.
Confident with state management, APIs, authentication (Keycloak), and frontend performance optimization.
Solid understanding of software architectures, data flows, and API design.
Experience with Vite and the common tooling around testing and code quality, plus a working understanding of CI/CD and cloud environments.
You work autonomously, think pragmatically, and write code that others enjoy building on. You keep yourself actively up to date on new technologies and trends.

Why us?

You work on a technically demanding platform with a real societal mission, no throwaway projects, but software with substance and longevity
An attractive compensation package
AI is not a buzzword here, it is a core part of the product and you will work closely with applied LLM technology
A small, technically strong team with short decision-making cycles and plenty of room to shape things
Modern office in central Berlin-Mitte

About us

Our decision models map the logic of laws, regulations, and complex sets of rules completely and in machine-readable form. This means routine reviews are automated and transparent, while the decision itself stays with a human. We build this technology for public administration as well as for companies in regulated industries. Public authorities currently use it in building permit and wind power approval procedures, among others.

At Rulemapping, we are revolutionizing the world of rules and laws and, with our Law as Code approach, developing the open standard for digital law. Supported by the Federal Agency for Breakthrough Innovation (SPRIND) and anchored in the German federal government's modernization agenda, our unique combination of Rulemap and language model delivers results that are reasoned, legally sound and verifiable. We take this pioneering technology wherever procedures run at high volume or high complexity, in Germany and internationally.

Together with you, we want to further advance this vision!