> Markdown version of [/jobs/ext/3679383-senior-full-stack-developer](https://www.wearedevelopers.com/jobs/ext/3679383-senior-full-stack-developer). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Senior Full Stack Developer - **Company:** Think Group - **Location:** Berlin, Germany - **Experience:** Expert - **Contract:** Permanent contract - **Skills:** Artificial Intelligence, C++ (Programming Language), Software Quality, Code Review, Text Processing, Design of User Interfaces, Python (Programming Language), TypeScript, Backend, Information Technology - **Published:** October 11, 2026 - **Apply:** https://www.adzuna.de/details/5908445864 ## About the Role * A degree in computer science, mathematics, physics, or a similar technical field * Relevant experience as a backend or full-stack engineer * Strong experience with TypeScript and Node.js in production environments * Curiosity about AI technologies and interest in integrating them into real-world products * Experience with Python or C++ is a plus ## Description At thinkcell, we are continuously improving how professionals create business presentations by introducing smarter automation and assistance features into our product. In this role, you will help turn new ideas and early AI-driven concepts into reliable features used by more than 1.3 million users worldwide. You will build production-ready systems that connect modern backend services with intuitive user interfaces. In this role, you will work closely with both C++ engineers developing the core product and AI engineers exploring new automation capabilities, helping bring new functionality from concept into everyday product usage. This role is ideal for engineers who enjoy building clean, scalable systems, care deeply about code quality, and are motivated by shipping impactful features in a highly collaborative engineering environment. What you will do * Build and maintain production-ready backend and full-stack features using TypeScript * Integrate AI-powered functionality into the thinkcell product, such as text editing assistance and automated slide creation * Work closely with C++ engineers and AI engineers to translate ideas and prototypes into robust product features * Contribute to a strong engineering culture with rigorous code reviews and high standards for code quality