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Senior Software Engineer – (C#, .NET)

OneMain Financial

West Valley City, UTJobSeen 3w agoSeen in employer's feed 1w ago

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At a glance

Compensation
No compensation found
Location
West Valley City, UT
Work Authorization
Not specified

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Requirements

Credentials this posting asks for.

Bachelor's degree

Job overview

The Senior Software Engineer will contribute to architecture and development of loan origination and servicing systems, ensure scalable and secure design, implement APIs and integrations, collaborate through code reviews and design discussions, support CI/CD automation, modernize legacy systems, troubleshoot performance issues, and mentor peers while promoting modern development practices.

Skills & qualifications

RequiredNice to have

Skills

T‑SQLC#NET FrameworkDistributed SystemsMulti‑Tier ArchitectureWPF/XAMLLINQMVVMWebAPIReactAngularRESTful API DesignJSONXMLAgileDevOpsCode ReviewsDesign DiscussionsPair Programming

Qualifications

Bachelor’s Degree in Computer Science Engineering or Related Field3–5+ Years Developing Enterprise-Grade Applications in .NETExperience Working in Agile Environments With DevOps Practices

Full job description

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) and Affirmative Action (AA) employer. Qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender perception or identify, national origin, age, marital status, protected veteran status, or disability status.

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