Senior Java Backend Engineer: Microservices & Distributed Systems (Remote)

Sinch is seeking a Senior Software Engineer to design and build the next generation of our Contacts Platform. You will design backend services, work with Java, Spring, Kafka, MongoDB and OpenSearch, and help scale distributed systems. You’ll develop internal tools for monitoring and debugging, ensure observability and security, collaborate with cross-functional teams, and contribute to code quality. This role is 95% remote for candidates based in Spain, with quarterly office days in Madrid. J-1…