{"id":3541255,"url":"https://alion.io/job/avenga-senior-java-developer-3","title":"Senior Java Developer","company":{"id":181252,"name":"Avenga","domain":"avenga.com","url":"https://alion.io/company/avenga","size_band":"5000+","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Teamtailor","truth_index":{"grade":"B","score":76,"open_postings":26,"ghost_share":0,"stale_share":0.962,"repost_share":0,"time_to_fill_p50_days":39,"computed_at":"2026-10-31T05:58:55Z"}},"role":"Backend","role_family":"Backend","seniority":"senior","employment_type":"full_time","work_mode":"hybrid","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":62000,"max_usd":103000,"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":"CI/CD","optional":false},{"name":"Docker","optional":false},{"name":"Git","optional":false},{"name":"Gradle","optional":false},{"name":"Hibernate","optional":false},{"name":"Java","optional":false},{"name":"Kubernetes","optional":false},{"name":"Maven","optional":false},{"name":"MS SQL","optional":false},{"name":"OpenShift","optional":false},{"name":"PostgreSQL","optional":false},{"name":"RabbitMQ","optional":false},{"name":"Rest API","optional":false},{"name":"Spring Boot","optional":false},{"name":"Spring Data JPA","optional":false},{"name":"Spring MVC","optional":false},{"name":"Spring Security","optional":false},{"name":"SQL","optional":false},{"name":"SonarQube","optional":true}],"status":"live","first_seen_at":"2026-10-30T18:02:53Z","employer_posted_date":"2026-10-30","last_verified_at":"2026-10-31T23:15:37Z","board_verified":true,"closed_at":null,"days_open":1,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":1},"description":"Avenga is an international engineering firm helping businesses operate with AI at the core. With 6,000+ experts worldwide, we combine engineering expertise with AI-native thinking to turn ambitious ideas into real-world impact across industries, technologies, and markets. \nAt the core of the role\nWe are looking for a Senior Java Backend Developer to join a long-term project in the Polish banking sector.\nYou will work on large-scale backend solutions, contributing to the development and evolution of distributed systems and microservices. The role combines hands-on Java development with API and microservice design, integrations, performance, scalability, security and code quality.\nPlease note that this is a hybrid role. We expect on average 1 day per week from the office, with the following locations available: Warsaw, Łódź, Gdańsk, Wrocław, Poznań, Kraków, Lublin and Szczecin.\nThe role also requires Polish at B2+/C1 level.\nCore skills you’ll bring\nStrong commercial experience with Java, ideally Java 17/21\n\nStrong knowledge of Spring Boot and the Spring ecosystem, including Spring MVC, Spring Data JPA and Spring Security\n\nExperience with Hibernate / JPA\n\nGood knowledge of SQL and relational databases such as Oracle, PostgreSQL or MS SQL Server\n\nExperience designing and developing REST APIs\n\nExperience with messaging technologies such as Kafka, JMS or RabbitMQ\n\nHands-on experience with microservices\n\nExperience with Docker and Kubernetes or OpenShift\n\nExperience with Git, Maven or Gradle and CI/CD\n\nExperience with unit and integration testing\n\nUnderstanding of application security, scalability and high-availability systems\n\nFluent Polish\n\nNice-to-have\nExperience in banking, financial services or transactional systems\n\nKnowledge of payment processes\n\nExperience with SonarQube, Nexus or Artifactory\n\nThe impact you'll create\nDesign, develop and maintain backend services using Java and Spring\n\nDesign and evolve REST APIs and microservices\n\nDevelop synchronous and asynchronous integrations\n\nContribute to scalable, highly available and secure solutions\n\nWrite unit and integration tests and maintain high code quality\n\nParticipate in code reviews and technical discussions\n\nAnalyse logs, troubleshoot issues and continuously improve existing solutions\n\n What supports your journey\nPeople are at the core of Avenga. We provide equal opportunities regardless of race, ethnicity, gender identity, sexual orientation, disability, age, religion, or any other characteristic. We are committed to a respectful environment where everyone can be themselves, share their ideas, and feel that they belong.","description_format":"text","description_chars":2621,"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":[{"name":"Poland","iso":"PL","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":["IT Consulting & Digital Transformation","IT Outsourcing & Dedicated Teams","Custom Software Development"],"lifecycle":[{"event":"open","at":"2026-10-30T19:21:00Z"}],"visa":[],"liveness":{"score":63,"band":"ok","label":"Likely open","p_open":1,"p_active":0.632,"p_room":1,"age_days":0,"expected_fill_days":39,"reasons":["conf:5","stale_co","velocity","win:early","comp:brand"],"computed_at":"2026-10-31T05:58:55Z"},"pay":null,"html_url":"https://alion.io/job/avenga-senior-java-developer-3","json_url":"https://alion.io/job/avenga-senior-java-developer-3.json","meta":{"generated_at":"2026-11-01T01:48:43Z","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":2663,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-11-02T00:00:00Z"}},"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":181252},"rest":"https://alion.io/mcp/rest/get_company?id=181252"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Favenga-senior-java-developer-3"},{"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%2Favenga-senior-java-developer-3"},{"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%2Favenga-senior-java-developer-3"},{"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/avenga-senior-java-developer-3\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Favenga-senior-java-developer-3"}],"agent":{"mcp":"https://alion.io/mcp/jobs","mcp_open":"https://alion.io/mcp/open","next":[{"tool":"get_job","arguments":{"id":3541255}},{"tool":"search_jobs","arguments":{"company":"avenga.com","detail":"compact"}},{"tool":"match_people","arguments":{"job_id":3541255},"note":"people open to offers who fit this vacancy"}],"note":"The same data through MCP tools: https://alion.io/mcp/open needs no sign-in (compact searches, postings, people); https://alion.io/mcp with an Alion account has everything. Docs: https://alion.io/developers"}}