{"id":2140670,"url":"https://alion.io/job/antal-hsbcjp00056941-kotlin-developer","title":"HSBCJP00056941 Kotlin Developer","company":{"id":870,"name":"Antal","domain":"antal.pl","url":"https://alion.io/company/antal-sp-z-o-o","size_band":"51-200","is_staffing_agency":true,"employer_type":"agency","is_intermediary":false,"listed_via":null,"ats_vendor":"Traffit","truth_index":{"grade":"A","score":95,"open_postings":756,"ghost_share":0,"stale_share":0,"repost_share":0.005,"time_to_fill_p50_days":92,"computed_at":"2026-10-13T05:45:00Z"}},"role":"Mobile","role_family":"Mobile","seniority":null,"employment_type":null,"work_mode":"hybrid","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"explicit","locations":["Poland"],"countries":["PL"],"hiring_countries":[],"hiring_countries_total":0,"salary":{"min":180,"max":230,"currency":"PLN","period":"hour","gross":null,"usd_annual":118000},"salary_estimate":null,"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Agile","optional":false},{"name":"Bitbucket","optional":false},{"name":"CI/CD","optional":false},{"name":"Confluence","optional":false},{"name":"JavaScript","optional":false},{"name":"Jira","optional":false},{"name":"Kotlin","optional":false},{"name":"SQL","optional":false},{"name":"AWS","optional":true},{"name":"Azure","optional":true},{"name":"GCP","optional":true},{"name":"Jenkins","optional":true},{"name":"Linux","optional":true}],"status":"live","first_seen_at":"2026-03-04T14:08:01Z","employer_posted_date":"2026-03-04","last_verified_at":"2026-10-13T13:20:48Z","board_verified":true,"closed_at":null,"days_open":223,"trust":{"level":"ok","repost_count":0,"flags":["company_stale"],"days_open":222},"description":"Location: Kraków, Poland (hybrid - 6 days per month in the office)\nB2B Contract: 180 - 230 PLN / hour\nWe are looking for a Kotlin / Java Developer to join an international project delivered for a large organization within the financial services sector. The team is building an internal engineering platform that supports development teams in managing software development standards, quality controls and compliance across the organization.\nThis role involves working on modern web applications and APIs built with Kotlin and Java, based on a microservices architecture. The scope of responsibilities will be adjusted to the candidate’s experience and technical profile.\nKey Responsibilities:\nCollaborate with developers, testers and business stakeholders to build and operate internal products.\n\nDesign, develop and implement backend features and selected UI components according to backlog priorities.\n\nBuild and maintain APIs and microservices that address real business and engineering challenges.\n\nWork closely with the wider engineering team to design and deliver new features.\n\nProactively engage with internal users to resolve issues and respond to feature requests.\n\nContribute within an Agile, CI/CD-driven environment enabling frequent and stable releases.\n\nParticipate in code reviews and support quality through testing, including automated test scripts.\n\nRequirements:\nCommercial experience with Kotlin, or Java with a strong willingness to learn Kotlin.\n\nHands-on experience in at least 2 of the following areas: API development, SQL / databases, HTML / JavaScript.\n\nExperience working with collaboration tools such as Jira, Confluence and Bitbucket.\n\nSolid understanding of microservices architecture.\n\nStrong analytical and troubleshooting skills.\n\nGood communication and collaboration skills.\n\nEnglish proficiency at B2+ level.\n\nNice to Have:\nExperience with Jenkins and CI/CD pipeline design.\n\nKnowledge of test automation practices.\n\nFamiliarity with cloud platforms such as AWS, Azure or GCP.\n\nBackground in system administration (Linux / AIX / WAS).\n\nWhat We Offer:\nLong-term cooperation on an enterprise-scale international project.\n\nExposure to modern technologies and microservices-based architectures.\n\nReal influence on the development of internal engineering platforms.\n\nAccess to internal trainings, workshops and technical knowledge-sharing sessions.\n\nPrivate medical care (LuxMed) & Multisport card.\n\nCollaboration with experienced, international engineering teams.","description_format":"text","description_chars":2495,"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":"English","level":"Upper-Intermediate (B2)","optional":false}]},"benefits":[],"hiring_locations":[{"name":"Poland","iso":"PL","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":[],"lifecycle":[{"event":"open","at":"2026-10-09T02:58:10Z"}],"visa":[],"liveness":{"score":6,"band":"cold","label":"Long shot","p_open":1,"p_active":0.222,"p_room":0.28,"age_days":222,"expected_fill_days":92,"reasons":["conf:2","agency","velocity","win:tail","crowd:brand"],"computed_at":"2026-10-13T05:45:00Z"},"pay":{"stated_usd_annual":118000,"is_top_pay":false},"html_url":"https://alion.io/job/antal-hsbcjp00056941-kotlin-developer","json_url":"https://alion.io/job/antal-hsbcjp00056941-kotlin-developer.json","meta":{"generated_at":"2026-10-13T15:25:13Z","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":23541,"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":870},"rest":"https://alion.io/mcp/rest/get_company?id=870"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fantal-hsbcjp00056941-kotlin-developer"},{"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%2Fantal-hsbcjp00056941-kotlin-developer"},{"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%2Fantal-hsbcjp00056941-kotlin-developer"},{"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/antal-hsbcjp00056941-kotlin-developer\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fantal-hsbcjp00056941-kotlin-developer"}]}