Backend Developer (C) — Remote-Friendly, Microservices

SIX Group Services Ltd. in Madrid is seeking a Backend Developer (C) to join our development and support team. You will work on connectivity applications for Post Trading with internal and external interfaces and contribute to full lifecycle development.

The role requires 3 years of C programming and shell scripting, Linux administration, and knowledge of microservices and containerization. Proficiency in Spanish and English is essential, with up to 40% remote working from home.