{"id":3387679,"url":"https://alion.io/job/awareson-java-developer-javareactkafka-2","title":"Java Developer (Java/React/Kafka)","company":{"id":934,"name":"Awareson","domain":"awareson.com","url":"https://alion.io/company/awareson-sp-z-o-o","size_band":"51-200","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":"hybrid","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Warsaw, Poland"],"countries":["PL"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":67000,"max_usd":112000,"period":"year","method":"role_seniority_country_remote_cell","sample_n":352},"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Apache Kafka","optional":false},{"name":"Hibernate","optional":false},{"name":"Java","optional":false},{"name":"JUnit","optional":false},{"name":"Spring Boot","optional":false},{"name":"Spring Cloud","optional":false},{"name":"SQL","optional":false},{"name":"Testcontainers","optional":false},{"name":"AI Agents","optional":true}],"status":"live","first_seen_at":"2026-10-28T07:28:05Z","employer_posted_date":null,"last_verified_at":"2026-10-28T07:28:05Z","board_verified":false,"closed_at":null,"days_open":2,"trust":{"level":"not_scored","repost_count":null,"flags":[],"days_open":2},"description":"Poszukujemy doświadczonego Senior Fullstack Developera z bardzo dobrą znajomością Java i React do długoterminowego projektu klasy Enterprise z branży ubezpieczeń.\nWarszawa / hybrydowo – minimum 1 dzień w tygodniu z biura\n\nStart: 01.11.2026\n\nProjekt do 31.03.2028, z możliwością przedłużenia\n\nStawka: 140–160 zł netto + VAT za godzinę na B2B\n\nZakres obowiązków\nRozwój aplikacji backendowych w Java oraz frontendowych w React.\n\nProjektowanie i rozwój integracji z wykorzystaniem API, zdarzeń i usług integracyjnych.\n\nAnaliza wymagań biznesowych i technicznych oraz implementacja rozwiązań.\n\nPraca z systemami rozproszonymi i rozwiązaniami klasy Enterprise.\n\nRozwój testów automatycznych oraz udział w testach integracyjnych.\n\nCode review i współpraca z zespołami technicznymi, biznesowymi oraz dostawcą rozwiązania.\n\nWykorzystanie narzędzi AI w procesie wytwarzania oprogramowania.\n\nWymagania\nMinimum 5 lat doświadczenia w Java.\n\nMinimum 5 lat doświadczenia ze Spring, Spring Boot, Spring Cloud i Hibernate.\n\nMinimum 3 lata doświadczenia z Kafka.\n\nMinimum 5 lat doświadczenia z SQL.\n\nDoświadczenie w tworzeniu aplikacji frontendowych z wykorzystaniem React.\n\nZnajomość testów jednostkowych i integracyjnych, m.in. 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