{"id":1997837,"url":"https://alion.io/job/n-ix-senior-net-engineer-3","title":"Senior .Net Engineer","company":{"id":13248,"name":"N-iX","domain":"n-ix.com","url":"https://alion.io/company/n-ix","size_band":"1001-5000","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Greenhouse","truth_index":{"grade":"A","score":89,"open_postings":11,"ghost_share":0,"stale_share":0.455,"repost_share":0,"time_to_fill_p50_days":47,"computed_at":"2026-10-12T06:55:09Z"}},"role":"Backend","role_family":"Backend","seniority":"senior","employment_type":null,"work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Moldova","Poland","Romania","Ukraine"],"countries":["MD","PL","RO","UA"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":73000,"max_usd":166000,"period":"year","method":"role_seniority_country_cell","sample_n":11},"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Agile","optional":false},{"name":"Amazon ECS","optional":false},{"name":"ASP.NET Core","optional":false},{"name":"AWS","optional":false},{"name":"AWS Fargate","optional":false},{"name":"C#","optional":false},{"name":"Docker","optional":false},{"name":"Entity Framework Core","optional":false},{"name":"Git","optional":false},{"name":"Hangfire","optional":false},{"name":"Linux","optional":false},{"name":"MassTransit","optional":false},{"name":"Moq","optional":false},{"name":"RabbitMQ","optional":false},{"name":"Scrum","optional":false},{"name":"Windows","optional":false},{"name":"xUnit","optional":false},{"name":"Angular","optional":true},{"name":"CI/CD","optional":true},{"name":"JavaScript","optional":true},{"name":"TypeScript","optional":true}],"status":"live","first_seen_at":"2026-09-02T07:23:34Z","employer_posted_date":"2026-10-12","last_verified_at":"2026-10-12T17:00:06Z","board_verified":true,"closed_at":null,"days_open":40,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":40},"description":"As a .NET Engineer you will drive the technical modernization of a large-scale system from .NET Framework 4.8 to .NET 10. Your work will span the full backend stack - replacing Windows-only dependencies, refactoring legacy patterns, migrating data access to EF Core, and ensuring every service is portable, containerizable, and ready for AWS cloud deployment. You will collaborate closely with DevOps and database engineers as part of a cross-functional Agile team delivering a phased, production-safe migration.\nResponsibilities:\nMigrate a .NET Framework 4.8 application to .NET 10.\nMigrate a large database-first Entity Framework 6 model to EF Core 8 across multiple bounded contexts, one domain at a time.\nIdentify and replace Windows-only libraries and assembly references that prevent building and running on Linux.\nEstablish unit test coverage measurement and enforce quality gates as part of the migration pipeline.\nCollaborate with the DevOps engineer on Dockerfile authoring, environment configuration, and secrets injection.\nParticipate in Agile/SCRUM processes, conduct code reviews, and document migration decisions.\nMust-Have Qualifications:\n5+ years of C# and .NET backend development with strong knowledge of ASP.NET and ASP.NET Core.\nProven, hands-on experience migrating .NET Framework applications to .NET Core / .NET 8, 10 in production.\nSolid experience with Entity Framework Core.Solid knowledge of DDD, CQRS, and repository patterns in layered .NET architectures.\nFamiliarity with Docker multi-stage builds and Linux container fundamentals for .NET applications.Proficient with xUnit and Moq for unit testing; comfortable with container-wired test setups.\nExperience with AWS ECS / Fargate and ECR for deploying containerized .NET applications.\nFamiliarity with MassTransit and RabbitMQ or Amazon MQ for event-driven messaging.\nExperience with Hangfire or similar background job processing frameworks.\nProficient in Git and familiar with Agile/SCRUM team processes.\nNice-to-Have Skills:\nExperience building CI/CD pipelines for .NET projects.\nFamiliarity with micro-frontend architecture and Angular-based single-page applications.\nExperience with automated code coverage tooling and enforcing coverage thresholds in CI.\nExperience with performance optimization and scalable enterprise backend systems.\nWe offer*:\nFlexible working format - remote, office-based or flexible\nA competitive salary and good compensation package\nPersonalized career growth\nProfessional development tools (mentorship program, tech talks and trainings, centers of excellence, and more)\nActive tech communities with regular knowledge sharing\nEducation reimbursement\nMemorable anniversary presents\nCorporate events and team buildings\nOther location-specific benefits\n*not applicable for freelancers","description_format":"text","description_chars":2793,"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":["Flexible schedule","Professional development"],"hiring_locations":[],"hiring_excludes":[],"relocation_offered":false,"industries":["IT Consulting & Digital Transformation","IT Outsourcing & Dedicated Teams","Custom Software Development","AI Consulting & Integration"],"lifecycle":[{"event":"open","at":"2026-10-07T09:50:23Z"}],"visa":[],"liveness":{"score":62,"band":"ok","label":"Likely open","p_open":1,"p_active":0.829,"p_room":0.75,"age_days":39,"expected_fill_days":47,"reasons":["conf:2","urgency","velocity","win:late","comp:brand"],"computed_at":"2026-10-12T06:55:09Z"},"pay":null,"html_url":"https://alion.io/job/n-ix-senior-net-engineer-3","json_url":"https://alion.io/job/n-ix-senior-net-engineer-3.json","meta":{"generated_at":"2026-10-12T19:25:12Z","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":31502,"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":13248},"rest":"https://alion.io/mcp/rest/get_company?id=13248"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fn-ix-senior-net-engineer-3"},{"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%2Fn-ix-senior-net-engineer-3"},{"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%2Fn-ix-senior-net-engineer-3"},{"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/n-ix-senior-net-engineer-3\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fn-ix-senior-net-engineer-3"}]}