{"id":3100783,"url":"https://alion.io/job/itds-poland-senior-api-developer-cloud-native-java-and-microservices","title":"Senior API Developer – Cloud-Native Java and Microservices","company":{"id":879,"name":"ITDS Poland","domain":"itds.pl","url":"https://alion.io/company/itds","size_band":"11-50","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":["Kraków, Poland"],"countries":["PL"],"hiring_countries":[],"hiring_countries_total":0,"salary":{"min":27720,"max":33600,"currency":"PLN","period":"month","gross":null,"usd_annual":103320},"salary_estimate":null,"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Agile","optional":false},{"name":"AWS","optional":false},{"name":"Azure","optional":false},{"name":"CI/CD","optional":false},{"name":"Docker","optional":false},{"name":"GCP","optional":false},{"name":"Java","optional":false},{"name":"Kubernetes","optional":false},{"name":"Apache Kafka","optional":true},{"name":"RabbitMQ","optional":true}],"status":"live","first_seen_at":"2026-10-22T15:50:12Z","employer_posted_date":null,"last_verified_at":"2026-10-22T15:50:12Z","board_verified":false,"closed_at":null,"days_open":5,"trust":{"level":"not_scored","repost_count":null,"flags":[],"days_open":5},"description":"Unleash innovative API solutions — shape the future of digital banking with scalable, cloud-native architectures!\nWarsaw-based opportunity with hybrid work model.\nAs a Senior API Developer, you will be working for our client, a leading financial services provider committed to transforming banking experiences through cutting-edge technology. You will contribute to designing, building, and maintaining secure, scalable APIs that power HSBC’s digital products and internal platforms. Join us and help deliver reliable, modern services at a rapid pace, utilizing Java and cloud-native patterns to drive innovation and excellence in financial technology.\nYour main responsibilities:\nDevelop and optimize secure, high-performance APIs using modern Java and cloud-native frameworks.\nImplement event-driven architecture to enhance system responsiveness and scalability.\nCollaborate with cross-functional teams to translate business needs into technical solutions.\nMaintain and improve existing API infrastructure ensuring resilience and security.\nParticipate in code reviews, testing, and deployment processes to uphold quality standards.\nContribute to continuous improvement initiatives in API design and development practices.\nYou’re ideal for this role if you have:\n0+ years of experience in API development, microservices, or related fields.\nStrong proficiency in Java, with experience in cloud-native environments.\nFamiliarity with event-driven architecture patterns.\nKnowledge of modern API security and best practices.\nExperience working within Agile or DevOps teams.\nGood understanding of microservices architecture.\nExcellent problem-solving and communication skills.\nIt is a strong plus if you have:\nCertifications in Java or cloud platforms such as AWS, Azure, or GCP.\nExperience with CI/CD pipelines and containerization (Docker, Kubernetes).\nLanguage Required for the role:\nGood command of English.\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\nREST API design\nMicroservices architecture\ncloud-native development\nSpring Boot\nAPI Gateway\nDocker\nKubernetes\nCI/CD pipelines\nMessage Brokers (Kafka/RabbitMQ)","description_format":"text","description_chars":2409,"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":[]},"benefits":["Hybrid work"],"hiring_locations":[],"hiring_excludes":[],"relocation_offered":false,"industries":["IT Consulting & Digital Transformation","IT Staffing & Staff Augmentation"],"lifecycle":[{"event":"open","at":"2026-10-22T17:25:00Z"}],"visa":[],"liveness":{"score":78,"band":"hot","label":"Hiring now","p_open":1,"p_active":0.827,"p_room":0.945,"age_days":5,"expected_fill_days":12,"reasons":["seen:5","velocity","win:mid"],"computed_at":"2026-10-28T05:59:10Z"},"pay":{"stated_usd_annual":103320,"is_top_pay":false},"html_url":"https://alion.io/job/itds-poland-senior-api-developer-cloud-native-java-and-microservices","json_url":"https://alion.io/job/itds-poland-senior-api-developer-cloud-native-java-and-microservices.json","meta":{"generated_at":"2026-10-28T13:06:22Z","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":17575,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-29T00:00:00Z"}},"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-api-developer-cloud-native-java-and-microservices"},{"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-api-developer-cloud-native-java-and-microservices"},{"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-api-developer-cloud-native-java-and-microservices"},{"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-api-developer-cloud-native-java-and-microservices\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fitds-poland-senior-api-developer-cloud-native-java-and-microservices"}],"agent":{"mcp":"https://alion.io/mcp/jobs","mcp_open":"https://alion.io/mcp/open","next":[{"tool":"get_job","arguments":{"id":3100783}},{"tool":"search_jobs","arguments":{"company":"itds.pl","detail":"compact"}},{"tool":"match_people","arguments":{"job_id":3100783},"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. 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