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Senior Software Engineer – (C#, .NET)

OneMain Financial • Consumer Loans & Pawnshops • Bachelor's Degree • JavaScript • TypeScript • C# • 18 days ago
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Salary
≈ $105k – $192k per year (Estimated)
Location
In office (Salt Lake City)
Seniority
Senior · 3+ years exp
Employment
Full-Time

Confirmed on the employer's own hiring board on Oct 19, 2026. First seen by Alion on Oct 2, 2026. OneMain Financial scores B on the Alion truth index.

Overview
Company
Impact
Profile match

OneMain Financial

OneMain Financial is a consumer finance company headquartered in Evansville, Indiana, offering personal loans, auto loans and credit cards to nonprime borrowers online, by phone and through a network of more than 1,300 branches across the United States. Tracing its roots to 1912 and listed on the New York Stock Exchange as OneMain Holdings, it also owns BrightWay, a digital credit card business launched in 2021, and runs offices in Wilmington, Charlotte, Baltimore, Irving and Tempe. It hires loan sales and collections specialists, branch managers, underwriters, dealer relationship specialists, accountants, pricing and card analysts, marketing program managers and software engineers.
onemainfinancial.com • HQ: Evansville, United States • Consumer Loans & Pawnshops • 5000+ employees • Est. 1912
Tech stack of OneMain Financial

Key Responsibilities

  • Contribute 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).
  • Ensure scalable, maintainable, and secure software design within assigned projects.
  • Implement APIs, middleware services, and integrations with internal and external tools such as Twilio Flex.
  • Collaborate with peers through code reviews, design discussions, and pairing sessions.
  • Support automation and continuous integration strategies to improve development efficiency and reliability.
  • Assist in technical initiatives to modernize legacy systems and improve scalability.
  • Participate in troubleshooting and performance tuning to maintain system health.

What Sets You Apart

  • 3-5+ years of experience developing enterprise-grade applications in .NET.

  • Strong skills in T-SQL, C#, and the .NET Framework with experience in backend service design.

  • Understanding of distributed systems and multi-tier application architectures.

  • Hands-on experience with WPF/XAML, LINQ, MVVM, and WebAPI; exposure to React or Angular is a plus.

  • Proficiency in RESTful API design, JSON, and XML integrations.

  • Ability to explain technical concepts clearly across teams.

  • Experience working in Agile environments with DevOps practices.

  • Bachelor’s degree in Computer Science, Engineering, or related field.

  • Interest in mentoring peers and promoting modern development practices.

OneMain 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.

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