> Markdown version of [/jobs/ext/1933109-barcelona-hybrid-senior-full-stack-product-engineer-ai](https://www.wearedevelopers.com/jobs/ext/1933109-barcelona-hybrid-senior-full-stack-product-engineer-ai). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Barcelona Hybrid: Senior Full-Stack Product Engineer (Ai) - **Company:** Jobfluent - **Location:** Madrid, Spain - **Contract:** Permanent contract - **Skills:** Artificial Intelligence, Software as a Service, Backend, Front End Software Development, Automation Anywhere - **Published:** August 5, 2026 - **Apply:** https://www.buscojobs.com.es/barcelona-hybrid-senior-full-stack-product-engineer-ai-en-madrid-ID-365544782 ## About the Role haddock is seeking a Product Engineer (Mid/Senior Full Stack) to own end-to-end features across frontend, backend, and AI workflows in a Barcelona-based team. The role is hybrid with at least two office days per week in Poblenou. You should have 4+ years of SaaS engineering experience, fluency in Spanish and English, and a track record building scalable, production-grade software. The team emphasizes ownership, Lean Startup principles, and fast delivery in a growing restaurant tech platform. #J-*****-Ljbffr ## Description haddock is seeking a Product Engineer (Mid/Senior Full Stack) to own end-to-end features across frontend, backend, and AI workflows in a Barcelona-based team.The role is hybrid with at least two office days per week in Poblenou.You should have 4+ years of SaaS engineering experience, fluency in Spanish and English, and a track record building scalable, production-grade software.The team emphasizes ownership, Lean Startup principles, and fast delivery in a growing restaurant tech platform.#J-*****-Ljbffr ## Related Videos - [Your next 10x engineer isn't in your city. Refactor accordingly.](https://www.wearedevelopers.com/videos/100103-your-next-10x-engineer-isn-t-in-your-city-refactor-accordingly) - [Beyond the Hype: Building Trustworthy and Reliable LLM Applications with Guardrails](https://www.wearedevelopers.com/videos/1594-beyond-the-hype-building-trustworthy-and-reliable-llm-applications-with-guardrails) - [Terraform for Developers](https://www.wearedevelopers.com/videos/3-terraform-for-developers) - [Developing the Backend with Stefan Lingler, CTO at Shpock](https://www.wearedevelopers.com/videos/100360-developing-the-backend-with-stefan-lingler-cto-at-shpock) - [Fleet Management - Reinvented](https://www.wearedevelopers.com/videos/473-fleet-management-reinvented) - [Headless Flipper - embeddable mobile devtools for your CI and beyond](https://www.wearedevelopers.com/videos/451-headless-flipper-embeddable-mobile-devtools-for-your-ci-and-beyond) ## Related Articles - [Find a Developer Job: 12 Best Job Sites For Developers](https://www.wearedevelopers.com/magazine/165-find-a-developer-job-12-best-job-sites-for-developers) - [Fully Remote Software Engineer Jobs](https://www.wearedevelopers.com/magazine/447-fully-remote-software-engineer-jobs) - [Navigating the AI Shift](https://www.wearedevelopers.com/magazine/629-navigating-the-ai-shift) - [Where To Find Software Engineering Jobs](https://www.wearedevelopers.com/magazine/396-where-to-find-software-engineering-jobs) - [Dev Digest 132 - Binging WADFlix?](https://www.wearedevelopers.com/magazine/473-dev-digest-132-binging-wadflix) - [Dev Digest 121 - AI goes offline](https://www.wearedevelopers.com/magazine/456-dev-digest-121-ai-goes-offline)