{"id":2112428,"url":"https://alion.io/job/iteamly-lead-java-developer","title":"Lead Java Developer","company":{"id":3913593,"name":"iTeamly","domain":"iteamly.com","url":"https://alion.io/company/iteamly","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":"lead","employment_type":"contractor","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":15500,"max":31000,"currency":"PLN","period":"month","gross":null,"usd_annual":95172},"salary_estimate":null,"experience_years_min":7,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"CI/CD","optional":false},{"name":"Java","optional":false},{"name":"Rest API","optional":false},{"name":"Apache Kafka","optional":true},{"name":"AWS","optional":true},{"name":"Azure","optional":true},{"name":"Docker","optional":true},{"name":"Kubernetes","optional":true},{"name":"LLM","optional":true}],"status":"live","first_seen_at":"2026-09-15T12:11:17Z","employer_posted_date":null,"last_verified_at":"2026-09-15T12:11:17Z","board_verified":false,"closed_at":null,"days_open":26,"trust":{"level":"not_scored","repost_count":null,"flags":[],"days_open":26},"description":"We are looking for an experienced Lead Java Developer to join an international engineering team building modern digital solutions for the travel and aviation industry.\nYou will take a leading role in designing and developing scalable backend solutions supporting digital customer journeys, online booking, travel management and additional services. You will combine hands-on development with technical leadership, helping shape architecture, engineering practices and the growth of the team.\nWhat we offer:Private healthcare\nMultisport\nWork on a modern product used in the travel & aviation industry\nInternational environment and experienced engineering team\nOpportunity to influence technical solutions, architecture and engineering practices\nOpportunity to work on complex backend challenges at scale\nB2B contract\nLong-term cooperation and opportunities for professional growth\nZakres obowiązków\nLeading the design and development of scalable backend applications using Java\nTaking ownership of technical solutions, architecture decisions and engineering standards\nDesigning and developing REST APIs, integrations and distributed systems\nWorking with microservices architecture and cloud-based solutions\nDriving technical discussions, code reviews and knowledge sharing across the team\nMentoring and supporting other engineers, helping them grow technically\nCollaborating closely with Product, Frontend, QA, DevOps and other technical teams\nEnsuring reliability, scalability and maintainability of delivered solutions\nContributing to improving development processes, engineering practices and overall product quality\nWymagania\n7+ years of professional experience in backend software development\nStrong hands-on experience with Java and Spring / Spring Boot\nSolid experience designing and developing REST APIs\nPractical experience with microservices architecture\nExperience with relational databases and data modelling\nStrong understanding of software architecture, design patterns and engineering best practices\nExperience taking ownership of complex technical solutions from design to production\nExperience mentoring engineers or acting as a technical leader within a team\nGood understanding of testing practices, CI/CD and modern software delivery processes\nGood command of English\nAbility to work independently, make technical decisions and drive solutions forward\n Nice to have:\nExperience working in the travel, aviation or e-commerce industry\nExperience with cloud platforms such as AWS, Azure or GCP\nKnowledge of event-driven architecture and messaging systems (e.g. Kafka)\nExperience with containerization and orchestration tools (Docker, Kubernetes)\nExperience working with AI-powered solutions, including integrating LLM-based features, AI APIs or AI-assisted development tools\nInterest in applying AI to improve engineering productivity and software delivery\nExperience working in international, distributed engineering teams\nTech stack\nJava\nSpring\nREST API\nMicroservices architecture\nDesign Patterns\nTesting\nCD\nCloud 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