Summary
Julius Seltenheim is a Berlin-based freelance backend engineer and tech lead with 13 years of software development experience building and modernizing distributed systems across public sector, edtech, and data platforms. He has led architecture and delivery efforts—transforming monoliths into deployable microservices, introducing DB schema versioning, and improving deployment independence and code quality. Comfortable across the full stack, Julius pairs hands-on implementation (including migrations from Couchbase to Postgres) with roadmap-driven leadership and clear ticketing to streamline team velocity. His background includes scaling backend services at Trifacta, driving technical direction at Cornelsen, and architecting public-sector web apps, reflecting a knack for turning legacy complexity into maintainable platforms. Notably, he combines academic grounding from HTW Berlin with a pattern of quickly embedding into teams to deliver measurable improvements from day one.
13 years of coding experience
11 years of employment as a software developer
Master’s Degree, International Media and Computing, Master’s Degree, International Media and Computing at HTW Berlin, University of Applied Science
English, German, Spanish