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(Senior) Fullstack Developer (m/w/d) React / Node.js

Köln, NORDRHEIN_WESTFALEN💼 Full-time🗓 2026-07-27 → 2026-09-12

Core

Design and develop scalable, future-proof software solutions for a tax advisory network, building interactive UIs and robust API architectures.

Role type

Senior Fullstack Developer (React/Node.js)

Builds

Functional web applications and scalable APIs for tax advisory processes

Domain

Tax advisory / Financial services

Deliverable

production ML models | product features

Required skills

React, TypeScript, Tailwind CSS, Node.js, PostgreSQL, GraphQL, REST APIs, WebSockets, Docker, Functional Programming

Preferred skills

Prisma, Vitest, Playwright, Monorepos, OIDC/OAuth2, AI Prompting/LLM integration, Accounting knowledge

Technologies

React, TypeScript, Tailwind CSS, Vite, Node.js, PostgreSQL, GraphQL, Docker, Vitest, Playwright

Responsibilities

Conceive and develop performant web applications from UI to API architecture; Build reactive frontend surfaces; Develop scalable backend APIs; Apply functional programming principles for maintainable code; Support deployment pipelines and containerization

Seniority

Senior, hands-on IC

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