Looking for a Full-Stack Engineer.Salary: €60k-€80kHybrid: BCN 3 Days, Remote: 2 Days.We're a SaaS AI hiring startup, founded in October .One of the founders has +20 years of recruiting experience, founded and, and has tested every ATS on the market — he'll be a heavy daily user.Product: AI Interviews/Agents + Omnichannel/All-In-One: WhatsApp + LinkedIn + Email.
Market: Primarily the US, but integral from day one.Risks: Like in any startup, they exist, and we'll explain them during the interview.Investors: +10 successful entrepreneurs with exits in their projects.Tech & ChallengesYou'll own features from the first commit to production monitoring.
Ship Features Fast, Build Platform as You GoDesign and ship end-to-end features (Next.Js frontend ? FastAPI backend ? Supabase)Identify when manual deploys/testing/monitoring hurt, automate them.Create reusable patterns for common integration needs (data-access, webhooks, auth, data sync)You'll ship the feature this week, automate the deployment next week,



extract patterns the month after.Integration Architecture for HR Tech StackDesign API patterns that work for ATS, HRIS,, LinkedIn, email providers, and future integrations.Build webhook handlers, auth flows (OAuth, JWT), data sync pipelines.Safe Deployment & MonitoringSet up monitoring/tracing for every feature you ship (know what breaks and where)Create deployment automation as manual deployment pain increases.Build internal tooling to make deployments safe, routine, and low-friction.Know when to ask for help setting up observability, then automate it for next timeOur stack: Python/FastAPI, Next.Js 14+, Supabase, Docker, GitHub Actions, and infrastructure as code patterns.4+ years professional software engineering (full-stack)Proven ability to ship features end-to-end (Next.Js + Python/FastAPI preferred)Experience and excitement towards AI Agents (coding agents, LLM APIs)Experience with monorepos, deployment automation, CI/CD, Docker.AI/LLM proficiency is required: You are

📌 Fullstack React/Python Developer, hibrido (España)
🏢 AI hiring startup
📍 España