Y Combinator Senior Full-Stack Developer (Kotlin / Java / React)
Summary
Senior Full-Stack Developer builds and maintains a web platform for German leasing companies using Kotlin/Java backend and React frontend, with occasional onsite work in Germany.
Senior Full-Stack Developer (Kotlin / Java / React)
EU only (business trip to Germany for 3–4 days every 6 months)
We&;re looking for a strong Senior Full-Stack Developer to join an enterprise project for one of our long-term clients. We already have several developers successfully working on this project.
Project
A web-based platform for German leasing companies that supports and automates their core business processes.
Requirements
6+ years of software development experience
Strong Kotlin & Java
Strong React
Experience with PostgreSQL and/or MongoDB
CI/CD & automated testing
Experience with AI-assisted development
Strong software engineering and problem-solving skills
⭐️ Nice to have
Node.js
Responsibilities
Develop and enhance full-stack applications
Build scalable backend services with Kotlin & Java
Develop modern React features
Improve architecture and optimize existing modules
Collaborate with Product, QA, and DevOps teams
Participate in code reviews