Curated clusters of writing, talks, and work — grouped by the problems I have actually shipped against.
Building Upgrid's Swiss energy marketplace — local solar communities, vZEV/LEG compliance, and marketplace engineering.
Code freezes, risk trade-offs, and leading platform teams — practical engineering leadership writing by Rafael Roman.
Payments, neobank platforms, and regulated delivery — career and technical writing from N26, Personio, and GFT.
Real-time fraud and financial crime prevention at neobank scale — architecture, streaming, and lessons from rebuilding N26's risk engine.
Apache Flink, Kafka, and stateful stream processing for regulated fintech — talks and writing by Rafael Roman.