{"id":3401890,"url":"https://alion.io/job/optiveum-senior-c-net-developer-2","title":"Senior C# / .NET Developer","company":{"id":685848,"name":"Optiveum","domain":"optiveum.com","url":"https://alion.io/company/optiveum","size_band":null,"is_staffing_agency":true,"employer_type":"agency","is_intermediary":false,"listed_via":null,"ats_vendor":"Teamtailor","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":["Wrocław, Poland"],"countries":["PL"],"hiring_countries":[],"hiring_countries_total":0,"salary":{"min":145,"max":160,"currency":"PLN","period":"hour","gross":null,"usd_annual":82000},"salary_estimate":null,"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":".NET","optional":false},{"name":"Azure","optional":false},{"name":"C#","optional":false},{"name":"CI/CD","optional":false},{"name":"Docker","optional":false},{"name":"GitLab CI","optional":false},{"name":"Kubernetes","optional":false},{"name":"PostgreSQL","optional":false}],"status":"live","first_seen_at":"2026-10-28T13:13:30Z","employer_posted_date":"2026-10-28","last_verified_at":"2026-10-29T00:45:40Z","board_verified":true,"closed_at":null,"days_open":0,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":0},"description":"Senior C# / .NET Developer\nAbout the Offer\nWe are currently looking for a Senior C# / .NET Developer to join the team of one of the world's leading global investment banks. The project is delivered together with a large international IT services company. For this role, Optiveum is the recruitment and contracting party, which means you will sign the cooperation agreement directly with us.\nYou will develop and maintain C#/.NET applications built as microservices and event-driven solutions, running on Docker and Kubernetes in Microsoft Azure and delivered through GitLab CI/CD.\nKey Details:\nRate: 145-160 PLN/h (B2B), depending on experience\n\nWork Model: Hybrid, 4 days per week from the client's office (non-negotiable), full-time\n\nLocation: Wrocław (candidates must live in or near Wrocław)\n\nResponsibilities:\nDevelop and maintain applications using C#/.NET\n\nDesign and implement microservices and event-driven solutions\n\nDevelop and support cloud-based applications on Microsoft Azure\n\nWork with Oracle, Sybase or PostgreSQL databases\n\nBuild, deploy and maintain applications using Docker and Kubernetes\n\nCreate and enhance GitLab CI/CD pipelines\n\nCollaborate with development teams to deliver scalable and reliable solutions\n\nRequirements:\nAround 10 years of commercial software development experience\n\nStrong experience with C#/.NET\n\nExperience with microservices and event-driven architecture\n\nExperience working with Microsoft Azure\n\nKnowledge of Oracle, Sybase or PostgreSQL databases\n\nExperience with Docker and Kubernetes\n\nExperience with GitLab CI/CD pipelines\n\nKnowledge of software development and deployment best practices\n\nFluent English\n\nPolish or EU citizenship, or a permanent residence / work permit valid for at least 12 months\n\nRecruitment Process:\nOne interview with the IT services partner, followed by 1-3 interviews with the bank\n\nTechnical tasks are done live: please have your programming environment set up and tested beforehand. The use of AI tools, coding assistants or code generators during interviews is not allowed\n\nThe selected candidate will go through a background check by an external company (HireRight), covering identity, right to work, education and employment history, so the dates and employers in your CV must be accurate\n\nYour name in the application and CV must match your official ID document exactly (Polish citizens: please include all first names)\n\nCandidates who took part in a recruitment process for this IT services partner or this bank in the last 12 months cannot be considered","description_format":"text","description_chars":2537,"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":"Polish","level":"All levels","optional":false},{"language":"English","level":"Advanced (C1)","optional":false}]},"benefits":[],"hiring_locations":[{"name":"Poland","iso":"PL","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":[],"lifecycle":[{"event":"open","at":"2026-10-28T14:48:21Z"}],"visa":[],"liveness":{"score":52,"band":"ok","label":"Likely open","p_open":1,"p_active":0.516,"p_room":1,"age_days":0,"expected_fill_days":22,"reasons":["conf:4","agency","win:early"],"computed_at":"2026-10-29T04:57:30Z"},"pay":{"stated_usd_annual":82000,"is_top_pay":false},"html_url":"https://alion.io/job/optiveum-senior-c-net-developer-2","json_url":"https://alion.io/job/optiveum-senior-c-net-developer-2.json","meta":{"generated_at":"2026-10-29T04:57:30Z","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":7677,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-30T00:00:00Z"}},"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":685848},"rest":"https://alion.io/mcp/rest/get_company?id=685848"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Foptiveum-senior-c-net-developer-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%2Foptiveum-senior-c-net-developer-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%2Foptiveum-senior-c-net-developer-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/optiveum-senior-c-net-developer-2\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Foptiveum-senior-c-net-developer-2"}],"agent":{"mcp":"https://alion.io/mcp/jobs","mcp_open":"https://alion.io/mcp/open","next":[{"tool":"get_job","arguments":{"id":3401890}},{"tool":"search_jobs","arguments":{"company":"optiveum.com","detail":"compact"}},{"tool":"match_people","arguments":{"job_id":3401890},"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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