Own one or two product surfaces end to end, including UI, Postgres schema, edge functions, deployment, and post-deployment operation Build and operate LLM-backed product functionality, including prompts, retrieval, evaluations, cost and latency optimization, and output validation Convert customer objections and call transcripts into shipped product Build with coding agents and take responsibility for their output Improve codebase rules, agent skills, and gates that catch problems before human PR review Talk directly with recruiter customers to understand what is broken Participate in a small-team, fast-decision engineering process using Linear, feature branches, PR review, squash merges, protected main, and deploy-on-merge Collaborate asynchronously with regular in-person time Requirements

Strong TypeScript and React fundamentals Shipped full-stack features and operated them, including migrations, auth, deploys, and production debugging Shipped something with an LLM in the critical path and kept it working Experience working inside a real engineering pipeline with branches, code review, CI, and releases Daily use of coding agents; ability to explain prompting, reviewing,



and validating agent output Ability to reason about unfamiliar code and catch plausible but incorrect agent output Ability to work independently, identify next steps, and ask promptly for missing information Existing right to work in the EU or EEA English for company communication Familiarity with TypeScript, React, Postgres, Supabase, Next.js, Vercel, Linear, Node.js or Python is relevant; not all stack experience is expected Core Competencies

Demonstrates expertise in full-stack development with a focus on TypeScript and React, while effectively managing product surfaces and collaborating in a fast-paced engineering environment. Proficient in deploying LLM-backed functionalities and optimizing performance through rigorous testing and validation. Highest-signal resume keywords

TypeScript React LLM Integration Postgres Full-Stack Development Hard Skills

Full-Stack Features Production Debugging Migrations Auth CI/CD Soft Skills

Independent Work Problem-Solving Communication Industry Keywords

Engineering Pipeline Code Review Deployment Agent Output Validation Customer Collaboration Tools & Technologies

Linear Supabase Next.js Vercel Node.js Python

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📌 AI Engineer – Full-Stack (Madrid)
🏢 Jobtailor
📍 Madrid