{"id":3326698,"url":"https://alion.io/job/q-tech-sr-fullstack-javareact","title":"Sr. FullStack (Java/React)","company":{"id":4449260,"name":"Q-Tech","domain":"q-techrec.com","url":"https://alion.io/company/q-tech-2","size_band":"5000+","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Teamtailor","truth_index":{"grade":"B","score":75,"open_postings":29,"ghost_share":0,"stale_share":1,"repost_share":0,"time_to_fill_p50_days":null,"computed_at":"2026-10-29T05:49:05Z"}},"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":50000,"max":60000,"currency":"EUR","period":"year","gross":true,"usd_annual":67099},"salary_estimate":null,"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Azure","optional":false},{"name":"Java","optional":false},{"name":"PostgreSQL","optional":false},{"name":"Spring Boot","optional":false}],"status":"live","first_seen_at":"2026-10-27T10:07:54Z","employer_posted_date":"2026-10-27","last_verified_at":"2026-10-29T16:01:04Z","board_verified":true,"closed_at":null,"days_open":2,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":2},"description":"At Q-tech, we collaborate with the global leader in reusable packaging containers and pallets for the fresh produce supply chain, whose mission is to make that supply chain sustainable.\nThey run a closed-loop pooling system with more than 400 million containers in circulation and over 2.5 billion shipments a year. They serve 300+ retailers and 18,000+ growers in more than 50 countries. Their sustainability targets are validated by the Science Based Targets initiative (SBTi), and they aim to be net-zero and zero-waste by 2040.\nIn 2024 they opened a Digital Hub in Barcelona to drive digital initiatives across the fresh supply chain.\nWe are looking for a Senior Full Stack Software Engineer to join the Digital team that develops the company’s main customer platform. It is a multi-tenant, service-oriented platform that integrates around 30 software products and serves 14,000 weekly active users in 25+ languages, on web and mobile.\nResponsibilities\nDevelop and evolve features on a platform.\n\nLead the platform’s modernization from traditional Java enterprise containers to a modern stack built on Spring Boot, React and microservices.\n\nSeparate and integrate microservices within a service-oriented architecture.\n\nHelp build a new module for automated asset tracking using digital chips, part of the platform’s role as the single customer-facing layer for new digital solutions.\n\nWork with high-volume data.\n\nCollaborate closely with the platform’s lead architect, who sets architecture guidelines and provides technical mentoring.\n\nRequirements\nSolid experience as a Full Stack Engineer with Java (Spring Boot) and React.\n\nExperience with PostgreSQL.\n\nExperience with service-oriented or microservices architectures.\n\nA methodical, structured engineering approach, used to working in regulated environments with demanding quality and security standards.\n\nMicrosoft Azure experience is a plus.\n\nHands-on experience with AI-assisted development tools is highly valued (this will be covered in the technical interview).\n\nWhat is offered\nSalary: €50,000 - €60,000 gross per year.\n\nHybrid model: 2 days a week in the Barcelona office.\n\nHealth assurance\n\nLearning budget","description_format":"text","description_chars":2174,"description_truncated":false,"requirements":{"experience_years_min":null,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":null,"security_clearance":false,"languages":[]},"benefits":[],"hiring_locations":[{"name":"Spain","iso":"ES","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":[],"lifecycle":[{"event":"open","at":"2026-10-27T10:24:29Z"}],"visa":[],"liveness":{"score":63,"band":"ok","label":"Likely open","p_open":1,"p_active":0.632,"p_room":1,"age_days":1,"expected_fill_days":27,"reasons":["conf:0","stale_co","velocity","win:early"],"computed_at":"2026-10-29T05:49:05Z"},"pay":{"stated_usd_annual":67099,"is_top_pay":false},"html_url":"https://alion.io/job/q-tech-sr-fullstack-javareact","json_url":"https://alion.io/job/q-tech-sr-fullstack-javareact.json","meta":{"generated_at":"2026-10-29T17:01:58Z","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":25454,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-30T00:00:00Z"}},"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":4449260},"rest":"https://alion.io/mcp/rest/get_company?id=4449260"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fq-tech-sr-fullstack-javareact"},{"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%2Fq-tech-sr-fullstack-javareact"},{"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%2Fq-tech-sr-fullstack-javareact"},{"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/q-tech-sr-fullstack-javareact\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fq-tech-sr-fullstack-javareact"}],"agent":{"mcp":"https://alion.io/mcp/jobs","mcp_open":"https://alion.io/mcp/open","next":[{"tool":"get_job","arguments":{"id":3326698}},{"tool":"search_jobs","arguments":{"company":"q-techrec.com","detail":"compact"}},{"tool":"match_people","arguments":{"job_id":3326698},"note":"people open to offers who fit this vacancy"}],"note":"The same data through MCP tools: https://alion.io/mcp/open needs no sign-in (compact searches, postings, people); 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