{"id":2140567,"url":"https://alion.io/job/antal-frontend-developer","title":"Frontend developer","company":{"id":870,"name":"Antal","domain":"antal.pl","url":"https://alion.io/company/antal-sp-z-o-o","size_band":"51-200","is_staffing_agency":true,"employer_type":"agency","is_intermediary":false,"listed_via":null,"ats_vendor":"Traffit","truth_index":{"grade":"A","score":95,"open_postings":749,"ghost_share":0.001,"stale_share":0,"repost_share":0.007,"time_to_fill_p50_days":112,"computed_at":"2026-10-10T05:45:15Z"}},"role":"Frontend","role_family":"Frontend","seniority":"senior","employment_type":null,"work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Poland"],"countries":["PL"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":61000,"max_usd":107000,"period":"year","method":"role_seniority_country_remote_cell","sample_n":30},"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"CI/CD","optional":false},{"name":"Datadog","optional":false},{"name":"Dynatrace","optional":false},{"name":"React Query","optional":false},{"name":"React.js","optional":false},{"name":"Rest API","optional":false},{"name":"JavaScript","optional":true},{"name":"Kotlin","optional":true}],"status":"live","first_seen_at":"2026-03-20T13:17:01Z","employer_posted_date":"2026-03-20","last_verified_at":"2026-10-10T22:47:30Z","board_verified":true,"closed_at":null,"days_open":204,"trust":{"level":"ok","repost_count":0,"flags":["company_stale"],"days_open":203},"description":"Senior React Developer\nLokalizacja: praca w pełni zdalna\nStart: ASAP\nTryb pracy: międzynarodowy, interdyscyplinarny zespół (brak innych Frontend Engineerów)\nPoziom seniority: Senior\nO roli\nPoszukujemy doświadczonego Senior Software Engineer (Frontend), który dołączy do zespołu. To rola o dużej autonomii - będziesz jedynym specjalistą frontendowym w zespole, a Twoje decyzje techniczne będą realnie wpływać na kierunek rozwoju produktu.\nZakres obowiązków\nProjektowanie i dostarczanie funkcjonalności zgodnych z najlepszymi praktykami branżowymi.\nAnaliza potencjalnych rozwiązań technicznych oraz rekomendowanie optymalnych kierunków.\nPrzeprowadzanie code review i dbanie o jakość kodu.\nWdrażanie usprawnień w obrębie zespołu i procesów.\nAnaliza wymagań użytkowników i celów biznesowych, aby efektywnie kierować rozwojem oprogramowania.\nWspółtworzenie kompletnej dokumentacji projektowej.\nZapewnienie utrzymania oraz wsparcia dla istniejących aplikacji, szybkie reagowanie na pojawiające się problemy.\nImplementacja testów automatycznych.\nWymagania\nKonieczne:\nMinimum 4 lata doświadczenia w tworzeniu aplikacji frontendowych z użyciem React (mid-senior).\nUmiejętność pracy z REST API i zarządzania stanem frontendu; znajomość React-Query oraz pisania custom hooks będzie dużym atutem.\nDoświadczenie z bibliotekami designowymi: tworzenie komponentów, projektowanie tokenów, theming, dostępność (ARIA).\nZnajomość CI/CD i doświadczenie w samodzielnym wdrażaniu aplikacji w chmurze przy współpracy z DevOps.\nUmiejętność tworzenia i utrzymywania testów E2E, zintegrowanych z pipeline’em CI.\nDbałość o wydajność aplikacji: responsywność, cross-browser, code-splitting, optymalny rendering.\nWspółpraca z UX/UI, QA oraz backendem na co dzień.\nDoświadczenie z narzędziami monitoringu i alertowania (np. Datadog, Dynatrace).\nMile widziane:\nZnajomość bibliotek do skanowania kodów (np. ZXing: QR / Barcode).\nTechnologie wykorzystywane w projekcie\n React (główna technologia frontendu)\nAndroid & Kotlin w obszarze aplikacji mobilnych (część zespołu)\nNowoczesny ekosystem CI/CD, testy E2E, monitoring\nBenefity\nKarta Multisport\nLuxmed\nUbezpieczenie zdrowotne","description_format":"text","description_chars":2144,"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":[{"language":"Polish","level":"Advanced (C1)","optional":false}]},"benefits":[],"hiring_locations":[],"hiring_excludes":[],"relocation_offered":false,"industries":[],"lifecycle":[{"event":"open","at":"2026-10-09T02:58:10Z"}],"visa":[],"liveness":{"score":13,"band":"cold","label":"Long shot","p_open":1,"p_active":0.375,"p_room":0.36,"age_days":203,"expected_fill_days":112,"reasons":["conf:0","agency","velocity","win:tail","crowd:brand"],"computed_at":"2026-10-10T05:45:15Z"},"pay":null,"html_url":"https://alion.io/job/antal-frontend-developer","json_url":"https://alion.io/job/antal-frontend-developer.json","meta":{"generated_at":"2026-10-11T02:42:24Z","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","counted_by":"address","units_charged":1,"used_today":4335,"day_limit":5000,"remaining_today":665,"minute_limit":60,"resets_at":"2026-10-12T00:00:00Z"}},"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":870},"rest":"https://alion.io/mcp/rest/get_company?id=870"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fantal-frontend-developer"},{"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%2Fantal-frontend-developer"},{"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%2Fantal-frontend-developer"},{"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/antal-frontend-developer\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fantal-frontend-developer"}]}