Krzysztof Szafanek is a seasoned engineer with 17 years of professional experience building software for industries such as pharma, geo services, gaming, and online retail. His path has taken him from web and game development, working with technologies like HTML5, Objective-C, Swift, and Unity, to Python and machine learning platform engineering.

At Zalando, Krzysztof supports machine learning practitioners as an ML Platform engineer and internal consultant. His work spans platform tooling and pipeline architecture as well as the human side of platforms: training, onboarding, and user support for engineers adopting ML infrastructure. He stays close to the fast-moving LLM landscape through hands-on experiments with diffusion models and related tooling.

He also writes about navigating career changes in machine learning, sharing practical debugging strategies and advice on transferable skills for engineers moving into ML and LLM work.