T24 core banking developer for system integration and API development.
You will develop and integrate T24 core banking systems with a focus on API development and system integration, working with technologies including JBasic, Java, JavaScript, SQL, REST APIs, and Kafka. This is a full-time permanent freelance position at medior level requiring onsite work in Warsaw, Poland, with English as the working language.
Membership is €29/month, cancel anytime: every rate, every original listing link, and a daily alert for roles matching your filters.
Found at a specialist agency · listed 22 July 2026 · InsideJobs links you to the original posting.