Tomasz Kowalczewski

Tomek is Tech Lead at Codewise where he builds data processing systems for a living. Hating JPA, Hibernate and relational databases in general he decided to wait until these technologies become obsolete. In the meantime he worked on distributed systems with lots of traffic and no SLAs (but customers still complained). Now back in data processing business he likes creating micro databases and evangelise about immutability of data (GDPR/RODO be damned). He also thinks salvation of our discipline could be achieved by ditching product and feature owners and making sure developers work directly with clients, read their support tickets, and if possible answer them.


Is writing performant code too expensive?