Senior Backend Engineer — Remote & Scalable Systems

The Flex is seeking a Senior Software Engineer (Backend) to join a fully remote engineering team. You will design, develop, and maintain scalable backend systems powering innovative products, collaborating with engineers and product teams across multiple projects. Occasional travel for team meetups may be required, with primary remote operation and flexibility for regions like Córdoba. We are looking for a proactive problem-solver with strong backend expertise and a track record of delivering J…