{"id":3047220,"url":"https://alion.io/job/haddock-product-engineer-ai-senior-full-stack","title":"Product Engineer (AI, Senior Full Stack)","company":{"id":3778390,"name":"haddock","domain":"haddock.app","url":"https://alion.io/company/haddock-2","size_band":"1-10","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Welcome to the Jungle","truth_index":null},"role":"Backend","role_family":"Backend","seniority":"senior","employment_type":"full_time","work_mode":"hybrid","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Barcelona, Spain"],"countries":["ES"],"hiring_countries":[],"hiring_countries_total":0,"salary":{"min":45000,"max":60000,"currency":"EUR","period":"year","gross":null,"usd_annual":67351},"salary_estimate":null,"experience_years_min":5,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Clean Architecture","optional":false},{"name":"Slack","optional":false}],"status":"live","first_seen_at":"2026-10-22T00:12:34Z","employer_posted_date":"2026-10-22","last_verified_at":"2026-10-23T03:23:20Z","board_verified":true,"closed_at":null,"days_open":1,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":1},"description":"Join Haddock, a company that embraces iteration, excellence, and AI. As a Senior Full Stack Product Engineer, you will work in small mission-oriented squads, heavily relying on AI for various tasks. You will be responsible for understanding customer needs, architecting technical solutions, building backend and frontend code, engineering AI workflows, managing your own projects, and communicating with customers for feedback. The position offers flexible working hours and requires experience in SaaS product companies, product engineering, fluency in Spanish, and proficiency in AI tooling.\nMissions\nComprender las necesidades de los clientes y el contexto del sector de la restauración para diseñar soluciones técnicas adecuadas.\nDesarrollar código backend y frontend, así como flujos de trabajo de inteligencia artificial, equilibrando la latencia, el costo y la precisión.\nGestionar proyectos de manera autónoma, implementando iniciativas y obteniendo retroalimentación de los clientes.\nProfil recherché\n - Experience in good coding practices and good architecture, like clean architecture, DDD, hexagonal, modular monoliths or microservice environments- We think these requirements are often achieved with 5 years of experience in SaaS product companies, but for some it might have taken less, and for others it might take more\n- Product Engineering experience: end-to-end from ideation, infrastructure, backend, frontend, testing, etc. because we aren't \"factory developers\", we are engineers of digital products responsible for outcomes, not for implementing requirements\n- Fluent in Spanish and comfortable in English. We tend to speak in Spanish at the office and in Slack, and write documentation and projects in English\n- Very good use of AI tooling: you have developed good judgement (criterio) when using IA and are very productive with it. You think in terms of AI workflows and automations, at work and at personal life","description_format":"text","description_chars":1936,"description_truncated":false,"requirements":{"experience_years_min":5,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":null,"security_clearance":false,"languages":[{"language":"Spanish","level":"Advanced (C1)","optional":false}]},"benefits":["Flexible schedule"],"hiring_locations":[{"name":"Spain","iso":"ES","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":["Artificial Intelligence","ERP & Business Management Software","Catering & Food Services"],"lifecycle":[{"event":"open","at":"2026-10-22T00:54:41Z"}],"visa":[],"liveness":{"score":86,"band":"hot","label":"Hiring now","p_open":1,"p_active":0.86,"p_room":1,"age_days":0,"expected_fill_days":21,"reasons":["conf:2","win:early"],"computed_at":"2026-10-22T06:10:10Z"},"pay":{"stated_usd_annual":67351,"is_top_pay":false},"html_url":"https://alion.io/job/haddock-product-engineer-ai-senior-full-stack","json_url":"https://alion.io/job/haddock-product-engineer-ai-senior-full-stack.json","meta":{"generated_at":"2026-10-23T05:45:22Z","cache_seconds":300,"methodology":"https://alion.io/methodology","terms":"https://alion.io/terms","contact":"https://alion.io/contact","api":"https://alion.io/developers","about":"Alion is a live layer of people, companies and AI agents: who they are, whether they are real and active right now, what they do and how to work with them, readable by people and by agents and paid per call.","catalog":"https://alion.io/catalog.json","usage":{"tier":"crawler_verified","counted_by":"address","units_charged":1,"used_today":9380,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-24T00:00:00Z"}},"offers":[{"id":"company.slices","title":"One company in depth, by slice","status":"live","price":{"credits":0.02,"usd":0.002,"plus_per_slice":{"credits":0.05,"usd":0.005}},"unit":"per company, plus each slice with data","note":"the employer in depth","call":{"mcp_tool":"get_company","arguments":{"id":3778390},"rest":"https://alion.io/mcp/rest/get_company?id=3778390"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fhaddock-product-engineer-ai-senior-full-stack"},{"id":"market.stats","title":"A market slice: pay, demand and time to fill","status":"live","price":{"credits":1,"usd":0.1},"unit":"per slice","note":"pay, demand and time to fill for this role and place","call":{"mcp_tool":"market_stats"},"human":"https://alion.io/catalog?offer=market.stats&for=job%2Fhaddock-product-engineer-ai-senior-full-stack"},{"id":"job.search","title":"Open jobs by role, technology, place, pay and visa","status":"live","price":{"credits":0.02,"usd":0.002},"unit":"per posting in a list","note":"similar open postings","call":{"mcp_tool":"search_jobs"},"human":"https://alion.io/catalog?offer=job.search&for=job%2Fhaddock-product-engineer-ai-senior-full-stack"},{"id":"company.verify","title":"Is this company real and active right now","status":"pilot","price":null,"unit":"per company","request":{"url":"https://alion.io/catalog/request","method":"POST","body":"{\"offer\": \"company.verify\", \"for\": \"job/haddock-product-engineer-ai-senior-full-stack\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fhaddock-product-engineer-ai-senior-full-stack"}]}