{"id":1748238,"url":"https://alion.io/job/onemain-financial-senior-software-engineer-c-net","title":"Senior Software Engineer – (C#, .NET)","company":{"id":1914300,"name":"OneMain Financial","domain":"onemainfinancial.com","url":"https://alion.io/company/onemainfinancial","size_band":"5000+","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Workday","truth_index":{"grade":"B","score":84,"open_postings":11,"ghost_share":0,"stale_share":0.636,"repost_share":0,"time_to_fill_p50_days":29,"computed_at":"2026-10-19T05:45:15Z"}},"role":"Backend","role_family":"Backend","seniority":"senior","employment_type":"full_time","work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Salt Lake City, United States"],"countries":["US"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":105000,"max_usd":192000,"period":"year","method":"role_seniority_country_remote_cell","sample_n":3287},"experience_years_min":3,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":".NET","optional":false},{"name":"Angular","optional":false},{"name":"C#","optional":false},{"name":"CI/CD","optional":false},{"name":"MS SQL","optional":false},{"name":"MVVM","optional":false},{"name":"Twilio","optional":false},{"name":"Agile","optional":true},{"name":"JavaScript","optional":true},{"name":"TypeScript","optional":true}],"status":"live","first_seen_at":"2026-10-02T00:00:00Z","employer_posted_date":"2026-10-02","last_verified_at":"2026-10-19T08:01:08Z","board_verified":true,"closed_at":null,"days_open":17,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":17},"description":"Key Responsibilities\nContribute to the architecture and development of key systems including Loan Origination Systems, Loan Servicing Systems, and customer-facing applications (e.g., omfauto.com, foursight.com, rateworks.com).\nEnsure scalable, maintainable, and secure software design within assigned projects.\nImplement APIs, middleware services, and integrations with internal and external tools such as Twilio Flex.\nCollaborate with peers through code reviews, design discussions, and pairing sessions.\nSupport automation and continuous integration strategies to improve development efficiency and reliability.\nAssist in technical initiatives to modernize legacy systems and improve scalability.\nParticipate in troubleshooting and performance tuning to maintain system health.\nWhat Sets You Apart\n3-5+ years of experience developing enterprise-grade applications in .NET.\n\nStrong skills in T-SQL, C#, and the .NET Framework with experience in backend service design.\n\nUnderstanding of distributed systems and multi-tier application architectures.\n\nHands-on experience with WPF/XAML, LINQ, MVVM, and WebAPI; exposure to React or Angular is a plus.\n\nProficiency in RESTful API design, JSON, and XML integrations.\n\nAbility to explain technical concepts clearly across teams.\n\nExperience working in Agile environments with DevOps practices.\n\nBachelor’s degree in Computer Science, Engineering, or related field.\n\nInterest in mentoring peers and promoting modern development practices.\n\nOneMain Holdings, Inc. is an Equal Employment Opportunity (EEO) employer. Qualified applicants will receive consideration for employment without regard to age, ancestry, citizenship status, color, creed, culture, disability, ethnicity, gender, gender identity or expression, genetic information or history, marital status, military status, national origin, nationality, pregnancy, race, religion, sex, sexual orientation, socioeconomic status, transgender or on any other basis protected by law.","description_format":"text","description_chars":1980,"description_truncated":false,"requirements":{"experience_years_min":3,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":{"level":"bachelor","optional":false},"security_clearance":false,"languages":[]},"benefits":[],"hiring_locations":[],"hiring_excludes":[],"relocation_offered":false,"industries":["Consumer Loans & Pawnshops"],"lifecycle":[{"event":"open","at":"2026-10-03T07:09:29Z"}],"visa":[],"liveness":{"score":51,"band":"ok","label":"Likely open","p_open":1,"p_active":0.561,"p_room":0.9,"age_days":17,"expected_fill_days":29,"reasons":["conf:2","stale_co","velocity","win:mid","comp:brand"],"computed_at":"2026-10-19T05:45:15Z"},"pay":null,"html_url":"https://alion.io/job/onemain-financial-senior-software-engineer-c-net","json_url":"https://alion.io/job/onemain-financial-senior-software-engineer-c-net.json","meta":{"generated_at":"2026-10-19T22:42:18Z","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":1574,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-20T00:00:00Z"}},"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":1914300},"rest":"https://alion.io/mcp/rest/get_company?id=1914300"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fonemain-financial-senior-software-engineer-c-net"},{"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%2Fonemain-financial-senior-software-engineer-c-net"},{"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%2Fonemain-financial-senior-software-engineer-c-net"},{"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/onemain-financial-senior-software-engineer-c-net\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fonemain-financial-senior-software-engineer-c-net"}]}