Jobs

KAST is seeking a hands-on Senior Backend Engineer with 5+ years of experience, specializing in Go, to build and scale their LATAM domestic payment rails. This role involves designing and implementing production-grade microservices and APIs, ensuring resilient fallback logic, and partnering cross-functionally to deliver compliant and auditable payment systems. The ideal candidate will have a strong understanding of system reliability and security, particularly in transactional systems, and a startup mindset with excellent ownership and execution abilities. This fully remote position is based in Brazil and offers the chance to contribute to a rapidly growing company redefining stablecoin banking.