{"id":2169713,"url":"https://alion.io/job/itds-poland-senior-java-backend-developer-rest-api-openshift","title":"Senior Java Backend Developer – Rest API & OpenShift","company":{"id":879,"name":"ITDS Poland","domain":"itds.pl","url":"https://alion.io/company/itds","size_band":"201-500","is_staffing_agency":false,"employer_type":"staffing","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":{"min":19950,"max":23730,"currency":"PLN","period":"month","gross":null,"usd_annual":72852},"salary_estimate":null,"experience_years_min":5,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Apache Kafka","optional":false},{"name":"Java","optional":false},{"name":"OpenShift","optional":false},{"name":"Redis","optional":false},{"name":"Rest API","optional":false},{"name":"Spring Boot","optional":false},{"name":"CI/CD","optional":true}],"status":"live","first_seen_at":"2026-10-09T10:20:13Z","employer_posted_date":null,"last_verified_at":"2026-10-09T10:20:13Z","board_verified":false,"closed_at":null,"days_open":4,"trust":{"level":"not_scored","repost_count":null,"flags":[],"days_open":4},"description":"Unleash innovation — drive seamless banking APIs that transform omnichannel financial experiences!\nWarsaw-based opportunity with hybrid work model.\nAs a Senior Java Backend Developer, you will be working for our client, a leader in banking technology, dedicated to delivering cutting-edge omnichannel banking solutions. You will help build a comprehensive REST API suite for banking systems across internet, mobile, and branch backoffice platforms, shaping the future of digital finance. This long-term collaboration offers a unique chance to innovate at the intersection of banking and technology.\nYour main responsibilities:\nDevelop and optimize REST API services to support multi-channel banking platforms.\nCollaborate with cross-functional teams to ensure API integration aligns with business needs.\nImplement high-quality, scalable backend solutions using OpenShift, Spring Boot, Kafka, Redis, MongoDB, and other modern tech stacks.\nMaintain and improve existing systems, ensuring stability and security.\nTroubleshoot and resolve complex technical issues efficiently.\nWrite clean, well-documented code following best practices.\nContribute to architecture design and technical standards.\nSupport continuous integration and deployment pipelines to streamline delivery processes.\nYou're ideal for this role if you have:\nAt least 5 years of proven experience in Java backend development.\nStrong expertise in Spring Boot, Kafka, Redis, and MongoDB.\nExperience working with OpenShift or similar container orchestration platforms.\nSolid understanding of REST API design and implementation.\nExperience or familiarity with banking or financial services systems is a strong plus.\nExcellent problem-solving skills and attention to detail.\nIt is a strong plus if you have:\nCertifications in Java or cloud platforms.\nKnowledge of security standards for banking APIs.\nExperience with long-term API maintenance and optimization.\nLanguage Required for the role:\nPolish (Good command)\nEnglish (Communicative-level proficiency)\nEligibility to work in Europe:\nOnly candidates with an existing legal right to work in the European Union will be considered for this role.\n#MAKEYourCareerBETTER\nInterested? Apply now and include your CV (preferably in English) along with a statement confirming your consent to the processing and storage of your personal data.\nTech stack\nJava\nSpring Boot\nREST API\nKafka\nRedis\nMongoDB\nOpenShift\nCI/CD pipelines\nBanking/Financial Systems\nAPI Security Standards","description_format":"text","description_chars":2474,"description_truncated":false,"requirements":{"experience_years_min":5,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":null,"security_clearance":false,"languages":[]},"benefits":["Hybrid work"],"hiring_locations":[],"hiring_excludes":[],"relocation_offered":false,"industries":["IT Consulting & Digital Transformation","IT Staffing & Staff Augmentation"],"lifecycle":[{"event":"open","at":"2026-10-09T11:30:00Z"}],"visa":[],"liveness":{"score":90,"band":"hot","label":"Hiring now","p_open":1,"p_active":0.903,"p_room":1,"age_days":3,"expected_fill_days":13,"reasons":["seen:3","velocity","win:early"],"computed_at":"2026-10-13T05:45:00Z"},"pay":{"stated_usd_annual":72852,"is_top_pay":false},"html_url":"https://alion.io/job/itds-poland-senior-java-backend-developer-rest-api-openshift","json_url":"https://alion.io/job/itds-poland-senior-java-backend-developer-rest-api-openshift.json","meta":{"generated_at":"2026-10-13T13:20:11Z","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":20582,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-14T00:00:00Z"}},"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":879},"rest":"https://alion.io/mcp/rest/get_company?id=879"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fitds-poland-senior-java-backend-developer-rest-api-openshift"},{"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%2Fitds-poland-senior-java-backend-developer-rest-api-openshift"},{"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%2Fitds-poland-senior-java-backend-developer-rest-api-openshift"},{"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/itds-poland-senior-java-backend-developer-rest-api-openshift\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fitds-poland-senior-java-backend-developer-rest-api-openshift"}]}