{"id":3819941,"url":"https://alion.io/job/infolet-senior-fullstack-developer-1737","title":"Senior Fullstack Developer (17/37)","company":{"id":4160520,"name":"Infolet","domain":"infolet.pl","url":"https://alion.io/company/infolet","size_band":"11-50","is_staffing_agency":true,"employer_type":"agency","is_intermediary":false,"listed_via":null,"ats_vendor":"Recruitify","truth_index":{"grade":"B","score":75,"open_postings":3,"ghost_share":0,"stale_share":1,"repost_share":0,"time_to_fill_p50_days":22,"computed_at":"2026-11-06T05:58:05Z"}},"role":"Backend","role_family":"Backend","seniority":"senior","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":{"min":21800,"max":25200,"currency":"PLN","period":"month","gross":null,"usd_annual":77280},"salary_estimate":null,"experience_years_min":8,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Azure","optional":false},{"name":"Azure AKS","optional":false},{"name":"Azure DevOps","optional":false},{"name":"Azure SQL Database","optional":false},{"name":"CI/CD","optional":false},{"name":"Configuration Management","optional":false},{"name":"Docker","optional":false},{"name":"JavaScript","optional":false},{"name":"Microsoft Entra ID","optional":false},{"name":"PostgreSQL","optional":false},{"name":"React.js","optional":false},{"name":"Spring Boot","optional":false},{"name":"SQL","optional":false},{"name":"Java","optional":true},{"name":"Kubernetes","optional":true}],"status":"live","first_seen_at":"2026-11-05T14:50:01Z","employer_posted_date":"2026-11-05","last_verified_at":"2026-11-06T20:40:12Z","board_verified":true,"closed_at":null,"days_open":1,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":1},"description":"SUMMARY\n130 - 150 PLN/h (B2B)\n15 600 - 18 000 PLN brutto (UOP)\nKrakow - hybrid (2-3 days per week in the office)\nSenior\nProject\nWe are looking for an experienced Senior Fullstack Developer to join a global technology team responsible for developing, maintaining, and improving cloud-native web applications and services.\nIn this role, you will work across the full software development lifecycle, building scalable solutions using Java, Spring Boot, React, and Microsoft Azure. You will collaborate with international, cross-functional teams to deliver reliable, efficient, and maintainable applications.\nYou will\nDesign, develop, test, and maintain web applications and services using Java, Spring Boot, and React.\nAnalyze business and technical requirements and translate them into effective software solutions.\nBuild and enhance cloud-native applications using Azure services, microservices, and containerization.\nDeploy, monitor, troubleshoot, and continuously improve applications and services.\nImplement and optimize CI/CD pipelines, release processes, and configuration management.\nFollow clean code principles and contribute to reusable, scalable, and maintainable solutions.\nCollaborate with global technology teams on system design, architecture, and technical improvements.\nMust have\n8+ years of experience in software development, with a strong understanding of the full SDLC.\nStrong hands-on experience with Java and Spring Boot.\nPractical experience with React, JavaScript, HTML, and CSS.\nSolid knowledge of Microsoft Azure, including services and tools such as:Azure App Service or AKS\nAzure Functions\nAzure Service Bus or Event Hubs\nAzure Key Vault\nAzure DevOps (CI/CD)\nAzure Monitor / Application Insights\nMicrosoft Entra ID\n\nExperience with SQL, JPA, and relational databases (PostgreSQL or Azure SQL).\nExperience developing microservices and containerized applications using Docker.\nGood understanding of software architecture, system design, testing, and troubleshooting.\nStrong analytical, problem-solving, and communication skills.\nAbility to collaborate effectively in an international environment.\nVery good command of English.\nNice to have\nBachelor's or master's degree in Computer Science or a related technical 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