Founding Engineer, Senior Backend with Ownership

Raul Cejas is a Founding Engineer and Senior Backend specialist based in Argentina, available for remote work with US/Canada/EU overlap. He is an experienced contractor for US-based companies with strong English communication skills. Raul builds and owns systems end-to-end, from architecture to production. He has a proven ability to build high-performance APIs (Go, Kafka, Redis) for banking systems, ship platforms from scratch, lead architecture for large-scale systems across hundreds of institutions, and migrate legacy systems to scalable microservices. Raul is comfortable operating in ambiguity and delivering without hand-holding. He is open to Full-time, Part-time, and Freelance roles.