Andreas Tollkötter
Technical Lead at GreenPocket GmbH
Cologne, North Rhine-Westphalia, Germany
Summary
🤩
Rockstar🎓
Top SchoolAndreas Tollkötter is a software engineer with nine years of experience building backend-focused full-stack systems and AI/ML platforms, currently driving generative AI and big data capabilities at REWE digital. He combines strong academic roots—top-ranked BSc and MSc from RWTH Aachen and research experience on graph isomorphism—with production work at startups and enterprises including Google and IVU. Skilled in Kotlin, C++, Python and web frontends, he has a knack for shipping developer-facing tooling, exemplified by contributions to Repomix, which packages repositories into AI-friendly formats. A curious "knowledge sponge," Andreas pairs deep theoretical understanding with pragmatic engineering to make complex systems usable by teams and models alike.
9 years of coding experience
8 years of employment as a software developer
Master of Science - MS Computer Science, Master of Science - MS Computer Science at RWTH Aachen University
German, English
Github Skills (18)
javascript10
typescript10
typescript-types10
nodejs10
typescripts10
handlebars9
markdown9
markdown-it9
xml9
ai8
generative-ai8
developer-tools7
build-tools6
build-engine6
buildr6
Programming languages (13)
Github contributions (5)
yamadashy/repomix
Jan 2025 - Jan 2025
📦 Repomix is a powerful tool that packs your entire repository into a single, AI-friendly file. Perfect for when you need to feed your codebase to Large Language Models (LLMs) or other AI tools like Claude, ChatGPT, DeepSeek, Perplexity, Gemini, Gemma, Llama, Grok, and more.
Role in this project:
Full-stack Developer
Full-stack DeveloperContributions:1 PR, 5 comments, 1 issue in 7 days
Contributions summary:Andreas primarily worked on enhancing the `repomix` repository, a tool designed for packing codebases for AI models. Their contributions centered on adding and refining the output formats, including parsable XML and Markdown. They implemented features such as Markdown escaping for correct content rendering and integrated parsable styles to improve output quality and usability. The user also fixed tests and added website server support.
aichatgptclaudegemmalarge-language-models
atollk/copper
Apr 2021 - Jul 2021
Port of Golang channels to C++
Contributions:2 releases, 2 reviews, 19 commits in 3 months
cppgolang
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