ph3Responsibilities /h3 pEngineers at haddock are action-oriented, curious, autonomous, and take full ownership of their work. /p ul liArchitect technical solutions /li liBuild backend and frontend code (80% backend, 20% frontend) /li liEngineer AI workflows, balancing latency, cost and accuracy /li liDo your own project management, rolling out your initiatives to customers /li liTrack users, measure interactions and extract conclusions /li liTalk to customers to validate ideas and get feedback /li /ul h3Example Work /h3 ul liEnabling Fina to match bank movements with invoices, finding gaps and reporting them to the suppliers via AI phone call. /li liEnabling business data to tell the story of the restaurant to their owners, displaying them financial metrics and insights, and enabling AI agents to work on that data. /li liIncreasing adoption of inventories to 50% of customers, a crucial part of operations at a healthy restaurant business. /li liBuilding MVPs for traceability, enabling groups of restaurants to comply with food health inspections, and evolving it based on feedback.



/li /ul h3Requirements /h3 ul li3+ years of engineering experience working on SaaS applications in Agile environments. /li liProduct Engineering experience: end-to-end from ideation, infrastructure, backend, frontend, testing, etc. /li liExperience setting up or working with infrastructure (using services, serverless functions, databases, external APIs, caches, queues, events, etc.). /li liVery good use of AI tooling. /li liFluent in Spanish and comfortable in English. /li liPreviously built AI workflows for production is a plus. /li /ul h3Benefits /h3 ul liCompetitive salary (€40–55k gross/year), with increasing raises. /li liBright modern office in Barcelona, in Poblenou. /li liHybrid work with 2 days at the office. /li liAll AI tooling for experimentation. /li liSubsidized Urban Sports Club membership. /li liBenefits for spending part of your salary via Playflow. /li /ul /p #J-18808-Ljbffr

📌 Product Engineer (Senior Full Stack) (Barcelona)
🏢 haddock (YC W22)
📍 Barcelona