Teams at Billie (billie.io)

Design, develop, test, deploy, maintain, and improve payment software and microservices. Debug Kotlin and PHP systems, participate in incident response, and deliver architectural improvements. Write technical specifications, use AI-assisted coding tools, review code, mentor engineers, and collaborate with stakeholders. The role owns security, reliability, scalability, and operational follow-up for high-availability payment systems involving banks, merchants, buyers, investors, and Billie.