Software Engineer
Posted by Location: Andalucía, Spain (CET) | Budget: $0 (fixed)
Job Description & Project Requirements
Location: Andalucía, Spain (CET) Remote: Yes – remote only Willing to relocate: No (EU citizen – no visa or work permit needed for EU employers) Technologies: TypeScript, React, Next.js, Node.js, Fastify, React Native, PostgreSQL, Prisma, Supabase, Anthropic SDK (Claude), LLM pipelines, Vitest/Jest, CI/CD Résumé/CV: <a href="https://saturnodev.netlify.app/" target="_blank" rel="nofollow noopener">https://saturnodev.netlify.app/</a> · linkedin.com/in/saturno-mangieri · github.com/theghost1980 Email: saturnob612 [at] gmail.com<p>Full-stack engineer, 6+ years on 100% remote teams, focused on shipping LLM features to production.<p>Last role: tech lead for AI call analysis at a US marketing agency. Took the MVP from design to validated delivery in 2 months: a Claude-based pipeline that turns a month of customer calls into coaching reports, with model-free quote verification (every quoted sentence is checked against the transcript, so no fabricated quote reaches a client), batch runs of up to 300 calls with live progress, and cost protection so no paid model response is ever lost.<p>Before that: product engineer on a crypto wallet with 10k+ users, where I shipped a swap widget that generated $10k+ in direct revenue in its first 5 months and set up the project's first testing/CI environment.<p>Looking for: full-time or contract roles in AI product engineering or full-stack. Available now. English C2, Spanish native.
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