{"id":2114313,"url":"https://alion.io/job/sii-tech-lead-fullstack-developer-fmx","title":"Tech Lead FullStack Developer (f/m/x)","company":{"id":1387,"name":"Sii","domain":"sii.pl","url":"https://alion.io/company/sii","size_band":"5000+","is_staffing_agency":false,"employer_type":"staffing","is_intermediary":false,"listed_via":null,"ats_vendor":"Career sitemap","truth_index":null},"role":"Leadership","role_family":"Leadership","seniority":"lead","employment_type":null,"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":69000,"max_usd":138000,"period":"year","method":"role_seniority_country_remote_cell","sample_n":31},"experience_years_min":8,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Agile","optional":false},{"name":"Confluence","optional":false},{"name":"Docker","optional":false},{"name":"JavaScript","optional":false},{"name":"JUnit","optional":false},{"name":"Kubernetes","optional":false},{"name":"React.js","optional":false},{"name":"Rest API","optional":false},{"name":"Scrum","optional":false},{"name":"Spring Framework","optional":false},{"name":"Swagger","optional":false},{"name":"TypeScript","optional":false},{"name":"BPMN","optional":true},{"name":"Java","optional":true},{"name":"WebSockets","optional":true}],"status":"live","first_seen_at":"2026-08-19T11:35:53Z","employer_posted_date":"2026-08-19","last_verified_at":"2026-10-11T18:49:49Z","board_verified":true,"closed_at":null,"days_open":53,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":53},"description":"This translation is generic and may include errors.\nShow original text\n\nThis offer base language is English.\nTranslate into Polish.\nTechnologie i narzędzia\nWymagane\n\nJava\n\nSpring Framework\n\nMikrousługi\n\nReact\n\nREST\n\nAPI\n\nJunit Tests\n\nTypeScript/JavaScript\n\nSzukamy doświadczonego Tech Leada do naszego zespołu w Krakowie. W tej hybrydowej roli będziesz prowadzić projektowanie i rozwój usług backendowych oraz API, przyczyniając się zarówno do komponentów backendowych, jak i frontendowych z wykorzystaniem Java, Spring, React.js i TypeScript. Będziesz pracować w środowisku Agile, współpracując z utalentowanym zespołem, aby dostarczać wysokiej jakości rozwiązania programistyczne. Jeśli pasjonujesz się budowaniem skalowalnych mikroserwisów i ulepszaniem doświadczeń użytkowników, ta oferta może być dla Ciebie odpowiednia.\nTwoje zadania\nKierowanie zespołami technicznymi i udzielanie wskazówek członkom zespołu dotyczących najlepszych praktyk i rozwiązań\nProjektowanie, budowa i wsparcie usług backendowych oraz API z wykorzystaniem Java i Spring Framework\nDostarczanie funkcji end-to-end, w tym praca frontendowa z React i TypeScript w razie potrzeby\nImplementacja mikroserwisów i wzorców mikro-baz danych z jasnymi kontraktami API\nBudowanie integracji z wykorzystaniem architektury zdarzeniowej\nRozwój funkcjonalności opartych na przepływach pracy oraz integracja komponentów workflow z usługami\nZapewnienie gotowości produkcyjnej poprzez skuteczne logowanie, obsługę błędów, odporność i obserwowalność\nPodnoszenie jakości poprzez automatyczne testy jednostkowe i integracyjne, skanowanie kodu oraz usuwanie wykrytych problemów\nKonteneryzacja aplikacji i wdrażanie z użyciem Docker i Kubernetes, wsparcie rozwoju usług w chmurze\nPraca w modelu Agile (Scrum) oraz dokumentowanie procesów w Confluence/Wiki\nWymagania\nMinimum 8 lat doświadczenia w tworzeniu aplikacji korporacyjnych ze szczególnym uwzględnieniem inżynierii backendu\nGłęboka znajomość Java i Spring Framework, w tym Boot, Data, REST i Security\nPraktyczne doświadczenie z architekturą mikroserwisów i systemami zdarzeniowymi\nZnajomość technologii frontendowych, w szczególności React.js i TypeScript, umożliwiająca istotny wkład w rozwój UI\nSilne praktyki automatyzacji testów, w tym doświadczenie z JUnit i frameworkami do mockowania\nDoświadczenie z Docker i Kubernetes w zakresie konteneryzacji i wdrażania\nZnajomość rozwoju usług w chmurze oraz specyfikacji/dokumentacji API przy użyciu Swagger lub OpenAPI\nKomfort pracy w zespołach Agile/Scrum z wykorzystaniem JIRA i Confluence\nJęzyk angielski na poziomie zaawansowanym\nGotowość do pracy z biura w Krakowie dwa razy w tygodniu\nMile widziane\nZnajomość domeny Ryzyka i Zgodności, najlepiej Model Risk Management\nDoświadczenie z Spring Integration i/lub Spring Batch\nZnajomość WebSockets, SSE lub protokołów binarnych\nPraktyczna znajomość silników/bibliotek workflow, takich jak BPMN, Flowable, Activiti lub Drools\nNr oferty JOB-XM9ZV\nSii zapewnia, że wszystkie decyzje związane z zatrudnieniem są podejmowane wyłącznie na podstawie kwalifikacji i kompetencji. Zobowiązujemy się do równego traktowania wszystkich osób, niezależnie od cech chronionych, oraz promowania zróżnicowanego i integracyjnego środowiska pracy.\nTechnologies & tools\nMust have\n\nJava\n\nSpring\n\nMicroservices\n\nReact.js\n\nREST\n\nAPI\n\nJunit Tests\n\nTypeScript/JavaScript\n\nWe are looking for an experienced Tech Lead to join our team in Cracow. In this hybrid role, you will lead the design and development of backend services and APIs, contributing to both backend and frontend components using Java, Spring, React.js, and TypeScript. You will work in an Agile environment, collaborating with a talented team to deliver high-quality software solutions. If you are passionate about building scalable microservices and enhancing user experiences, this opportunity may be the right fit for you.\nYour tasks\nLeading technical teams and providing guidance to team members on best practices and solutions\nDesigning, building, and supporting backend services and APIs using Java and Spring Framework\nDelivering end-to-end features, including frontend work with React and TypeScript as needed\nImplementing microservices and micro-database patterns with clear API contracts\nBuilding integrations using event-driven architecture\nDeveloping workflow-driven capabilities and integrating workflow components into services\nEnsuring production readiness through effective logging, error handling, resilience, and observability\nDriving quality through automated unit and integration testing, code scanning, and remediation of findings\nContainerizing applications and deploying using Docker and Kubernetes, supporting cloud services development\nWorking in an Agile (Scrum) model and documenting processes in Confluence/Wiki\nRequirements\nMinimum 8 years of experience in enterprise application development with a strong focus on backend engineering\nDeep expertise in Java and the Spring Framework, including Boot, Data, REST, and Security\nHands-on experience with microservices architecture and event-driven systems\nProficiency in frontend technologies, specifically React.js and TypeScript, to contribute meaningfully to UI development\nStrong automated testing practices, including experience with JUnit and mocking frameworks\nExperience with Docker and Kubernetes for containerization and deployment\nFamiliarity with cloud services development and API specification/documentation using Swagger or OpenAPI\nComfortable working in Agile/Scrum teams using JIRA and Confluence\nAdvanced level of English\nWillingness to work from the Kraków office twice a week\nNice to have\nKnowledge of Risk & Compliance domain, ideally Model Risk Management\nExperience with Spring Integration and/or Spring Batch\nFamiliarity with WebSockets, SSE, or binary protocols\nWorking knowledge of workflow engines/libraries such as BPMN, Flowable, Activiti, or Drools\nJob no. JOB-XM9ZV\nSii zapewnia, że wszystkie decyzje związane z zatrudnieniem są podejmowane wyłącznie na podstawie kwalifikacji i kompetencji. Zobowiązujemy się do równego traktowania wszystkich osób, niezależnie od cech chronionych, oraz promowania zróżnicowanego i integracyjnego środowiska pracy.","description_format":"text","description_chars":6203,"description_truncated":false,"requirements":{"experience_years_min":8,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":null,"security_clearance":false,"languages":[{"language":"English","level":"Advanced (C1)","optional":false}]},"benefits":[],"hiring_locations":[{"name":"Poland","iso":"PL","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":["IT Outsourcing & Dedicated Teams","Engineering Services","IT Staffing & Staff Augmentation"],"lifecycle":[{"event":"open","at":"2026-10-08T23:15:04Z"}],"visa":[],"liveness":{"score":32,"band":"fade","label":"Fading","p_open":1,"p_active":0.738,"p_room":0.44,"age_days":51,"expected_fill_days":44,"reasons":["conf:0","velocity","win:tail","crowd:brand"],"computed_at":"2026-10-10T05:45:15Z"},"pay":null,"html_url":"https://alion.io/job/sii-tech-lead-fullstack-developer-fmx","json_url":"https://alion.io/job/sii-tech-lead-fullstack-developer-fmx.json","meta":{"generated_at":"2026-10-11T22:13:54Z","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":11827,"day_limit":null,"remaining_today":null,"minute_limit":300,"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":1387},"rest":"https://alion.io/mcp/rest/get_company?id=1387"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fsii-tech-lead-fullstack-developer-fmx"},{"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%2Fsii-tech-lead-fullstack-developer-fmx"},{"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%2Fsii-tech-lead-fullstack-developer-fmx"},{"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/sii-tech-lead-fullstack-developer-fmx\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fsii-tech-lead-fullstack-developer-fmx"}]}