Serafín Barrera is a Senior Backend Engineer based in Granada with 14 years of experience building Python/Django services, integrations and payment flows for companies like Aplazame and Plexus. He specializes in backend architectures using Django, DRF, Daphne, Celery and GraphQL, and has delivered checkout and API-integration projects on AWS. Beyond pure development he has a track record of automating ML platform integrations and building end-to-end production apps for SMEs, reflecting strong systems and operational instincts. An experienced teacher and volunteer, he’s also run programming courses and free-software workshops, which informs his clear coding style and collaborative approach.
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Serafín Barrera - Senior Engineer Backend at Aplazame