{"id":2616521,"url":"https://alion.io/job/singu-full-stack-developer-react-net","title":"Full-stack Developer (React + .NET)","company":{"id":1010,"name":"Singu","domain":"singu.com","url":"https://alion.io/company/singu","size_band":null,"is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Ashby","truth_index":null},"role":"Backend","role_family":"Backend","seniority":"middle","employment_type":"full_time","work_mode":"hybrid","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Kraków, Poland"],"countries":["PL"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":41000,"max_usd":72000,"period":"year","method":"role_seniority_country_remote_cell","sample_n":91},"experience_years_min":3,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"C#","optional":false},{"name":"CI/CD","optional":false},{"name":"Claude Code","optional":false},{"name":"Cursor","optional":false},{"name":"GitHub","optional":false},{"name":"PostgreSQL","optional":false},{"name":"React.js","optional":false},{"name":"Rest API","optional":false},{"name":"TypeScript","optional":false},{"name":"Agile","optional":true},{"name":"AWS","optional":true},{"name":"Copilot","optional":true},{"name":"Docker","optional":true},{"name":"JavaScript","optional":true},{"name":"Redis","optional":true}],"status":"live","first_seen_at":"2026-10-15T10:37:30Z","employer_posted_date":"2026-10-15","last_verified_at":"2026-10-16T07:04:58Z","board_verified":true,"closed_at":null,"days_open":0,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":0},"description":"About SINGU\nAt SINGU, we’re redefining how the world’s most ambitious real estate companies run their operations. Our mission is to become Europe’s leading platform for managing warehouse, logistics, retail, and multi-site commercial real estate portfolios - empowering our Clients to protect revenue, boost efficiency, and unlock new value across every aspect of their business.\nOur unified CAFM platform already powers the daily operations of over 250 million m² of real estate worldwide, supporting more than 500,000 professionals. Following our union with the UK’s Micad and Germany’s net-haus, we now help manage 100,000+ buildings across 35+ countries - and we’re just getting started.\nBacked by a leading growth equity investor, we’re scaling rapidly and partnering with global leaders such asPrologis, ECE, CTP, Hillwood, Logicor, GLP, and Unibail-Rodamco-Westfield. As we continue to grow through strategic acquisitions and bold innovation, we stay true to our core values: adaptability, collaboration, and client focus.\nIf you’re ready to help build Europe’s leading platform for property operations - and make a tangible impact on how the real estate industry works -join SINGU and be part of this transformation.\nAbout SINGU\nAt SINGU, we're redefining how the world's most ambitious real estate companies run their operations. Our unified CAFM platform already powers the daily operations of over 250 million m² of real estate worldwide, supporting more than 500,000 professionals. Following our union with the UK's Micad and Germany's net-haus, we now help manage 100,000+ buildings across 35+ countries - and we're just getting started.\nBacked by a leading growth equity investor, we partner with global leaders like Prologis, ECE, CTP, Hillwood, Logicor, GLP, and Unibail-Rodamco-Westfield. Join us and help build Europe's leading platform for property operations.\nAbout the Team\nYou'll join the QRmaint team, building a mobile-first CMMS (Computerized Maintenance Management System) used by more than 700 organizations to keep machinery, production lines and shop-floor equipment running. QRmaint joined SINGU in 2026 and continues as a distinct product within the Group, now being integrated into the wider SINGU platform, covering everything from building operations down to the individual machine.\nAbout the Role\nWe're looking for a Full stack Developer to join our product team, with a focus on React and working knowledge of C# and .NET. Our frontend rewrite in React is about to start, and you'll be part of it from day one. You'll also deliver features end to end, from the REST API and PostgreSQL through to the UI. We estimate the split will be roughly 80% front-end and 20% back-end.\nYou'll collaborate with the Team Lead, Product Manager and Product Designer to build reliable, secure, high-quality software. Code reviews, solid testing and AI-assisted development are part of how we work every day.\nThis is a hybrid position (3 days per week from our Cracow or Warsaw office).\nTech Stack\nBackend: .NET 10, C# 14, REST APIs, Redis\n\nDatabase: PostgreSQL\n\nFrontend: React (TypeScript) , AngularJS\n\nTooling: GitHub, CI/CD, unit and integration testing\n\nAI-assisted development: Claude Code / Cursor / Copilot are part of our daily workflow\n\nWhat You’ll Bring\nMust-Have\n3+ years of commercial React development with strong TypeScript\n\nWorking C# knowledge: you can work in an existing codebase, ship smaller backend changes and grow from there\n\nProven experience integrating and designing REST APIs\n\nWorking knowledge of PostgreSQL\n\nA genuine testing habit: unit and integration tests as standard practice\n\nComfort participating in code reviews and giving direct, useful feedback\n\nOwnership of delivered features, from technical design to production and support\n\nPractical experience with AI-assisted development tools, and the judgment to critically assess what they produce\n\nCommunicative English (B2+): technical specs, tickets, documentation\n\nCommunicative Polish (B2+): the team works in Polish internally\n\nNice to Have\nExperience improving test automation and local development environments\n\nPostgreSQL query optimization (indexes, execution plans)\n\nDocker and cloud (AWS)\n\nWhat You’ll Do\nFrontend Development\nBuild user interfaces in React and TypeScript as a core contributor to our frontend rewrite\n\nTurn designs into responsive, accessible and performant UI, built on maintainable code\n\nContribute to shared components and our design system\n\nBackend Development\nBuild and extend backend features in .NET 10 and C# 14\n\nDesign and develop REST APIs that are consistent, secure and well documented\n\nWork with PostgreSQL database structures and help optimize queries, indexes and performance\n\nQuality & Testing\nTreat unit, integration and end-to-end testing as a core part of development, not an afterthought\n\nParticipate in code reviews with clear, constructive feedback\n\nWrite clean, secure, maintainable code aligned with our standards and best practices\n\nAI-Assisted Development\nUse AI tools (Cursor, Claude Code or similar) to accelerate development, code analysis and refactoring\n\nEvaluate the correctness, quality, security and performance of AI-generated code before it ships\n\nDelivery & Collaboration\nTake part in product discovery and feature specification, as well as technical breakdown and estimation before development starts\n\nWork within GitHub and CI/CD to deliver features reliably and on time, and own them through to production\n\nCollaborate closely with the Team Lead, PM and Designer day to day and actively participate in Agile ceremonies\n\nShare knowledge and support your teammates\n\nIf this role sounds like a good fit, we’d love to hear from you. Apply and help us build technology that supports critical operations every day.","description_format":"text","description_chars":5778,"description_truncated":false,"requirements":{"experience_years_min":3,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":null,"security_clearance":false,"languages":[{"language":"Polish","level":"Upper-Intermediate (B2)","optional":false},{"language":"English","level":"Upper-Intermediate (B2)","optional":false}]},"benefits":["Equity"],"hiring_locations":[{"name":"Poland","iso":"PL","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":["Real Estate","Field Service Management Software","Manufacturing & Industrial Software"],"lifecycle":[{"event":"open","at":"2026-10-15T12:23:06Z"}],"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":50,"reasons":["conf:2","win:early"],"computed_at":"2026-10-16T05:45:00Z"},"pay":null,"html_url":"https://alion.io/job/singu-full-stack-developer-react-net","json_url":"https://alion.io/job/singu-full-stack-developer-react-net.json","meta":{"generated_at":"2026-10-16T08:19:11Z","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":6217,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-17T00:00:00Z"}},"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":1010},"rest":"https://alion.io/mcp/rest/get_company?id=1010"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fsingu-full-stack-developer-react-net"},{"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%2Fsingu-full-stack-developer-react-net"},{"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%2Fsingu-full-stack-developer-react-net"},{"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/singu-full-stack-developer-react-net\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fsingu-full-stack-developer-react-net"}]}