{"id":2122964,"url":"https://alion.io/job/obi-senior-full-stack-engineer-java-kotlin-vue-js-aws-b2b","title":"Senior Full Stack Engineer (Java, Kotlin, Vue.js, AWS) (B2B)","company":{"id":2754559,"name":"OBI","domain":"obi.pl","url":"https://alion.io/company/obi-pl","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":"senior","employment_type":"contractor","work_mode":"hybrid","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Katowice, Poland"],"countries":["PL"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":46000,"max_usd":76000,"period":"year","method":"role_seniority_country_remote_cell","sample_n":300},"experience_years_min":5,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Apache Kafka","optional":false},{"name":"AWS","optional":false},{"name":"CI/CD","optional":false},{"name":"Docker","optional":false},{"name":"Java","optional":false},{"name":"Kotlin","optional":false},{"name":"Kubernetes","optional":false},{"name":"Spring Boot","optional":false},{"name":"Vue.js","optional":false},{"name":"JavaScript","optional":true}],"status":"live","first_seen_at":"2026-10-06T13:00:11Z","employer_posted_date":null,"last_verified_at":"2026-10-06T13:00:11Z","board_verified":false,"closed_at":null,"days_open":5,"trust":{"level":"not_scored","repost_count":null,"flags":[],"days_open":5},"description":"Responsibilities\nWe are looking for a practical and collaborative Senior Full Stack Engineer who wants to design and scale systems powering a modern retail platform.\nYou will take ownership of full stack solutions, contribute to architectural decisions, and drive improvements across backend and frontend systems in a cloud-native, event-driven environment.\nYour key responsibilities include:\nDesign and develop backend services and APIs using Java/Kotlin and Spring Boot, making architectural decisions and evaluating trade-offs. \n\nBuild and maintain frontend applications using Vue.js, ensuring performance and usability. \n\nDesign and evolve event-driven systems using Kafka and distributed architectures. \n\nWork with AWS cloud services and support deployment in containerized environments. \n\nCollaborate with DevOps and platform teams on CI/CD, infrastructure, and observability. \n\nTroubleshoot production issues, perform root cause analysis, and drive improvements. \n\nContribute to technical design discussions, mentor engineers, and promote engineering best practices. \n\nQualifications\nCompleted university degree in Computer Science or a related field. \n\n5+ years of experience in full stack development delivering production systems. \n\nStrong experience with Java/Kotlin, Spring Boot, and Vue.js. \n\nGood understanding of microservices, distributed systems, and event-driven architectures. \n\nExperience with Kafka or similar messaging systems. \n\nFamiliarity with AWS, CI/CD pipelines, and containerization (Docker/Kubernetes). \n\nAbility to contribute to architecture discussions and work across teams. \n\nStrong communication skills in English and Polish, with readiness for hybrid work in Katowice.\n\nAbout OBI Smart Technologies\nWHO ARE WE:\nWe are a joint venture between OBI and Reply Group, responsible for co-designing, building and operating mission-critical digital platforms for commerce, customer service, and omnichannel retail.\nOUR MISSION:\n\"We unite technology leadership with deep retail vision to implement standardized processes and scalable digital products that drive efficient support for one of Europe’s largest DIY retailers. Leveraging proven best practices, we advance the internationalization of products and the digital mindset of our partners, delivering consistent and business-critical solutions to support the targets of our customer.\"\n\nTech stack\nJava\nKotlin\nVue.js\nMicroservices\nKafka\nAWS\nCI/CD\nDocker\nKubernetes","description_format":"text","description_chars":2446,"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":[],"lifecycle":[{"event":"open","at":"2026-10-08T23:50:21Z"}],"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":22,"reasons":["seen:3","velocity","win:early"],"computed_at":"2026-10-10T05:45:15Z"},"pay":null,"html_url":"https://alion.io/job/obi-senior-full-stack-engineer-java-kotlin-vue-js-aws-b2b","json_url":"https://alion.io/job/obi-senior-full-stack-engineer-java-kotlin-vue-js-aws-b2b.json","meta":{"generated_at":"2026-10-12T03:13:13Z","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":4939,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-13T00:00:00Z"}},"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":2754559},"rest":"https://alion.io/mcp/rest/get_company?id=2754559"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fobi-senior-full-stack-engineer-java-kotlin-vue-js-aws-b2b"},{"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%2Fobi-senior-full-stack-engineer-java-kotlin-vue-js-aws-b2b"},{"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%2Fobi-senior-full-stack-engineer-java-kotlin-vue-js-aws-b2b"},{"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/obi-senior-full-stack-engineer-java-kotlin-vue-js-aws-b2b\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fobi-senior-full-stack-engineer-java-kotlin-vue-js-aws-b2b"}]}