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Description

Mario Cesar is a Senior full-stack engineer & tech lead with 10+ years of experience, specializing in Python/Django. He is adept at shipping MVPs to production, stabilizing/modernizing legacy systems, and is comfortable across backend, frontend, and infrastructure. He possesses strong expertise in SaaS, integrations, and data flows, including Zapier apps, ERPs, billing, CRMs, webhooks, ETL, and LLM integrations (OpenAI/Claude). He has a proven track record of making systems communicate reliably, with prior experience at Zapier (integrations) and Tesorio, spanning SaaS, fintech, and e-commerce sectors.