{"id":3684726,"url":"https://alion.io/job/happy-team-senior-fullstack-net-react-developer-2","title":"Senior Fullstack .NET & React Developer","company":{"id":1331,"name":"Happy Team","domain":"happyteam.io","url":"https://alion.io/company/happy-team","size_band":null,"is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":null,"truth_index":null},"role":"Backend","role_family":"Backend","seniority":"senior","employment_type":"contractor","work_mode":"remote","remote_scope":"stated_countries","remote_scope_basis":"board_field","remote_working_hours":null,"hiring_geo_confidence":"inferred","locations":["Łódź, Poland","Warsaw, Poland","Kraków, Poland","Poznań, Poland","Gdańsk, Poland"],"countries":["PL"],"hiring_countries":["PL"],"hiring_countries_total":1,"salary":{"min":21000,"max":27000,"currency":"PLN","period":"month","gross":null,"usd_annual":82176},"salary_estimate":null,"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":".NET","optional":false},{"name":"C#","optional":false},{"name":"MS SQL","optional":false},{"name":"Rest API","optional":false},{"name":"SQL","optional":false},{"name":"TypeScript","optional":false},{"name":"WebSockets","optional":false}],"status":"live","first_seen_at":"2026-11-03T12:47:46Z","employer_posted_date":null,"last_verified_at":"2026-11-03T12:47:46Z","board_verified":false,"closed_at":null,"days_open":1,"trust":{"level":"not_scored","repost_count":null,"flags":[],"days_open":1},"description":"👉 Kogo szukamy:\nPoszukujemy zdolnych i ambitnych Senior Fullstack Developerów (.NET & React), którzy chcieliby dołączyć do Happy Teamu i wspólnie z nami realizować przyszłe projekty IT dla naszych klientów. \n\n👉 Kilka słów o nas:\nNazwa naszej firmy (Happy Team) jednoznacznie wskazuje naszą kulturę pracy i główne cele jakie sobie stawiamy - dążymy do tego, żeby nasi pracownicy byli zadowoleni zarówno z wykonywanej pracy, jak i z życia ogółem. Uzyskujemy to dzięki:\n🔹 zgranemu zespołowi (bardzo ważny jest dla nas culture fit),\n🔹 partnerskiemu podejściu do współpracowników,\n🔹 świetnej atmosferze w zespole,\n🔹 wyjazdom integracyjnym,\n🔹 wsparciu wszelkich pomysłów rozwojowych naszych współpracownik.\n\n👉 Dołącz do Happy Team, jeśli:\n🔹 masz 5+ lat komercyjnego doświadczenia w developmencie, \n🔹 znasz bardzo dobrze C# /.NET (preferowane .NET 8 lub nowsze) i projektowanie REST API,\n🔹 znasz React i TypeScript i potrafisz realizować funkcjonalności end-to-end - od warstwy frontendowej po backend, \n🔹 swobodnie korzystasz z MS SQL, Dockera, WebSocket'ów, Reacta, Gita, \n🔹 znasz język angielski na poziomie umożliwiającym swobodną komunikację z zespołami anglojęzycznymi (minimum B2),\n🔹 chcesz być wsparciem dla innych Happy Developerów w rozwijaniu i utrzymaniu aplikacji webowych,\n🔹 jesteś otwarty na rozwój, nowe technologie i różnorodne wyzwania projektowe,\n🔹 interesujesz się możliwościami wykorzystania AI w codziennej pracy developera i chętnie poszerzasz swoją wiedzę w tym zakresie.\n\n👉 Co możemy Ci zaoferować:\n🔹 w pełni zdalną pracę,\n🔹 lekcje języka angielskiego,\n🔹 szereg inicjatyw podnoszących poczucie szczęścia (przykładowo - jako prezent urodzinowy Happy Team wpłaci na dowolnie wybrany przez Ciebie cel dobroczynny np. schronisko czy konkretną zbiórkę),\n🔹 bonus finansowy dla świeżo upieczonego rodzica,\n🔹 dofinansowanie do wynajmu biura w Twojej miejscowości (coworking),\n🔹 kartę Multisport,\n🔹 prywatną opiekę medyczną,\n🔹 budżet na rozwój (kursy, szkolenia) i miejsce do wymieniania się wiedzą,\n🔹 wspólne wyjazdy dwa razy do roku (tzw. Happy Trip),\n🔹 jasno wyznaczone cele, luźną atmosferę i wsparcie Happy Teamu.\nTech stack\nC#\nWebSocket\nDocker\nMS SQL\n.Net\nReact\nAzure","description_format":"text","description_chars":2182,"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":"Poland","iso":"PL","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":["IT Outsourcing & Dedicated Teams","Custom Software Development"],"lifecycle":[{"event":"open","at":"2026-11-03T14:25:30Z"}],"visa":[],"liveness":{"score":90,"band":"hot","label":"Hiring now","p_open":1,"p_active":0.903,"p_room":1,"age_days":0,"expected_fill_days":29,"reasons":["seen:0","velocity","win:early"],"computed_at":"2026-11-04T06:34:25Z"},"pay":{"stated_usd_annual":82176,"is_top_pay":false},"html_url":"https://alion.io/job/happy-team-senior-fullstack-net-react-developer-2","json_url":"https://alion.io/job/happy-team-senior-fullstack-net-react-developer-2.json","meta":{"generated_at":"2026-11-04T15:27:10Z","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":23589,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-11-05T00:00:00Z"}},"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":1331},"rest":"https://alion.io/mcp/rest/get_company?id=1331"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fhappy-team-senior-fullstack-net-react-developer-2"},{"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%2Fhappy-team-senior-fullstack-net-react-developer-2"},{"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%2Fhappy-team-senior-fullstack-net-react-developer-2"},{"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/happy-team-senior-fullstack-net-react-developer-2\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fhappy-team-senior-fullstack-net-react-developer-2"}],"agent":{"mcp":"https://alion.io/mcp/jobs","mcp_open":"https://alion.io/mcp/open","next":[{"tool":"get_job","arguments":{"id":3684726}},{"tool":"search_jobs","arguments":{"company":"happyteam.io","detail":"compact"}},{"tool":"match_people","arguments":{"job_id":3684726},"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); https://alion.io/mcp with an Alion account has everything. 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