Senior Full-Stack Engineer (TypeScript) (m/f/d)

Kurz zusammengefasst

The Senior Full‑Stack Engineer (TypeScript) will join a cross‑functional product team that owns a large portion of the AI‑driven segment of the company's platform. The business delivers agentic solutions that not only boost everyday productivity for customers but also automate entire tasks, running on a modern stack hosted in AWS. Day‑to‑day, the engineer will plan, design and build applications using TypeScript, Node.js, Mastra AI, React, MySQL, Kubernetes and Docker, all version‑controlled with GitLab. Collaboration is key: you will work hand‑in‑hand with Product Managers and Designers to ship high‑quality features, and partner with fellow developers to create scalable, highly available, and reliable services. The role also expects you to contribute ideas that improve the product or the developer experience, and to maintain clean, efficient, and maintainable code while keeping overall code‑base quality high. The must‑have profile includes deep expertise in TypeScript, with strong capabilities on both backend and frontend, though backend work is the primary focus. You must be a power user of AI‑based development tools, ideally experienced with Claude Code, and comfortable integrating large language models as architectural components. Proven experience building cloud applications on AWS is required, as is the ability to write well‑structured, maintainable code. Strong analytical, problem‑solving, and KPI‑driven work habits are essential, together with excellent communication skills and English proficiency at a C1 level or higher. Nice‑to‑have attributes include a proactive mindset for suggesting product or developer‑experience enhancements, and a collaborative attitude that fits an agile, open‑minded team praised with a Kununu score of 4.5. The position offers flexible hybrid work, generous workation days, and a suite of benefits such as corporate perks, pension scheme, childcare allowance, and a discount on EGYM Wellpass. Ongoing development opportunities and a continuing‑education budget support professional growth in an international, agile environment. What the role asks for: - Deep expertise in TypeScript (backend and frontend) - Strong backend development experience - Power‑user of AI‑based tools, preferably Claude Code - Experience integrating LLMs into software architecture - Proven AWS cloud application development - Ability to write clean, maintainable code - Excellent analytical and problem‑solving skills - English at C1 level or higher (nice‑to‑have)