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: · linkedin.com/in/saturno-mangieri · github.com/theghost1980 Email: saturnob612 [at] gmail.com Full-stack engineer, 6+ years on 100% remote teams, focused on shipping LLM features to production. 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. 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. Looking for: full-time or contract roles in AI product engineering or full-stack. Available now. English C2, Spanish native.

About working at 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: · linkedin.com/in/saturno-mangieri · github.com/theghost1980 Email: saturnob612 [at] gmail.com Full-stack engineer, 6+ years on 100% remote teams, focused on shipping LLM features to production. 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. 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. Looking for: full-time or contract roles in AI product engineering or full-stack. Available now. English C2, Spanish native.

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: · linkedin.com/in/saturno-mangieri · github.com/theghost1980 Email: saturnob612 [at] gmail.com Full-stack engineer, 6+ years on 100% remote teams, focused on shipping LLM features to production. 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. 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. Looking for: full-time or contract roles in AI product engineering or full-stack. Available now. English C2, Spanish native. is hiring for 1 live remote role right now, listed on RemoShift and refreshed from HNWhoIsHiring. The openings span remote work, with roles open to candidates in worldwide.

Every listing on this page links to the original posting — we don't host applications, so apply directly on 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: · linkedin.com/in/saturno-mangieri · github.com/theghost1980 Email: saturnob612 [at] gmail.com Full-stack engineer, 6+ years on 100% remote teams, focused on shipping LLM features to production. 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. 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. Looking for: full-time or contract roles in AI product engineering or full-stack. Available now. English C2, Spanish native.'s own careers page. Roles expire when the employer removes them or age out of the index, so check back often.