{"id":3682382,"url":"https://alion.io/job/unzer-software-engineer-java-mfd-2","title":"Software Engineer (Java) - (m/f/d)","company":{"id":51803,"name":"Unzer","domain":"unzer.com","url":"https://alion.io/company/unzer","size_band":null,"is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Lever","truth_index":null},"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":["Heidelberg, Germany"],"countries":["DE"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":null,"experience_years_min":5,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"AI Agents","optional":false},{"name":"Apache Kafka","optional":false},{"name":"Java","optional":false},{"name":"Spring Boot","optional":false},{"name":"SQL","optional":false},{"name":"Agentic Workflows","optional":true},{"name":"Angular","optional":true},{"name":"ArgoCD","optional":true},{"name":"AWS","optional":true},{"name":"Claude Code","optional":true},{"name":"Copilot","optional":true},{"name":"Docker","optional":true},{"name":"GDPR","optional":true},{"name":"Git","optional":true},{"name":"GitOps","optional":true},{"name":"JavaScript","optional":true},{"name":"Kubernetes","optional":true},{"name":"Model Context Protocol","optional":true},{"name":"OpenTelemetry","optional":true},{"name":"PCI DSS","optional":true},{"name":"TypeScript","optional":true}],"status":"closed","first_seen_at":"2026-11-03T12:27:53Z","employer_posted_date":"2026-11-03","last_verified_at":"2026-11-04T13:39:36Z","board_verified":false,"closed_at":"2026-11-04T13:39:36Z","days_open":1,"trust":{"level":"not_scored","repost_count":null,"flags":[],"days_open":1},"description":"What your work will look like:\n- Design, build, test, and operate cloud-based microservices (Java/Spring Boot, Kafka)\n- Write automated tests (unit, integration, and end-to-end) as an integral part of your daily work\n- Contribute to product design by writing technical specifications - clear enough to\nguide both engineers and AI agents\n- Use AI-assisted development (coding agents, AI code review, spec-driven workflows)\nin your daily work and help us evolve how we use it\n- Work with the Unzer Tech standards and processes and help us improve them\n- Be actively involved in team and organizational knowledge-sharing\nWhat you need to be successful in this role:\n- 5+ years of experience with Java 21+ and Spring Boot\n- Solid knowledge of data structures, algorithms, operating systems and distributed systems\n- Experience with SQL databases (schema design, migrations); NoSQL is a plus\n- Experience with microservices, event-driven messaging (Kafka, Avro) and\nGit-based workflows (feature branches, pull requests, code review)\n- You diligently test (ideally test-first/TDD) and document your deliveries\n- Experience in architecture design (e.g. Domain-Driven Design) and common design patterns\n- Experience with observability tools such as Coralogix or OpenTelemetry\n- Hands-on experience with AI coding assistants/agents (e.g. Claude Code, GitHub Copilot):\nyou use them productively and critically review, test and own the code they produce\n- Hands-on mentality\nNice to have:\n- Frontend experience with Angular\n- Know-how in delivering software to the AWS cloud platform\n- Experience with Docker, Kubernetes and GitOps (e.g. Argo CD)\n- Experience building agentic workflows (MCP integrations, custom agent skills,\nAI steps in CI such as automated PR review)\n- Experience in regulated environments (payments, PCI-DSS, GDPR)\nWhat’s next?\nDoes it sound exciting? - Apply with your CV in English. Please don’t shy away if you don’t meet all the requirements! We’re looking forward to meeting you. \nWe will get back to you within 7 days of receiving your application. \nThe interview process includes a 30-minute intro call with a TA Partner, a 45-minute conversation with the Hiring Manager, and a technical interview with the team (60- 90 mins). Please note the process might alter depending on our team’s availability.","description_format":"text","description_chars":2317,"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":[],"hiring_locations":[{"name":"Germany","iso":"DE","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":["Commerce","Financial Software & Embedded Finance","Payment Processing & Gateways"],"lifecycle":[{"event":"open","at":"2026-11-03T13:41:48Z"},{"event":"close","at":"2026-11-04T13:39:36Z"}],"visa":[],"liveness":null,"pay":null,"html_url":"https://alion.io/job/unzer-software-engineer-java-mfd-2","json_url":"https://alion.io/job/unzer-software-engineer-java-mfd-2.json","meta":{"generated_at":"2026-11-06T21:13:21Z","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":1309,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-11-07T00:00:00Z"}},"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":51803},"rest":"https://alion.io/mcp/rest/get_company?id=51803"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Funzer-software-engineer-java-mfd-2"},{"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%2Funzer-software-engineer-java-mfd-2"},{"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%2Funzer-software-engineer-java-mfd-2"},{"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/unzer-software-engineer-java-mfd-2\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Funzer-software-engineer-java-mfd-2"}],"agent":{"mcp":"https://alion.io/mcp/jobs","mcp_open":"https://alion.io/mcp/open","next":[{"tool":"get_job","arguments":{"id":3682382}},{"tool":"search_jobs","arguments":{"company":"unzer.com","detail":"compact"}},{"tool":"match_people","arguments":{"job_id":3682382},"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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