Senior .NET Software Engineer

RXO, Inc.

Senior .NET Software Engineer at RXO leading full stack application development and technical design decisions. Collaborating with various teams and mentoring engineers on best practices.

Posted 6/20/2026full-timeNaperville • Illinois, North Carolina • 🇺🇸 United StatesSenior💰 $140,000 - $160,000 per yearWebsite

Tech Stack

Tools & technologies

AngularASP.NETDistributed SystemsMicroservices.NETNoSQLReactSQL

About the role

Key responsibilities & impact

Lead the design and development of full stack applications using .NET 8, C#, and ASP.NET Core
Provide technical leadership across backend services, APIs and frontend applications (React/Angular)
Translate business and technical requirements into scalable, maintainable solutions
Drive architectural decisions including service design, communication patterns and data modeling
Coordinate sprint execution and technical direction with offshore development teams
Guide data strategy across relational (SQL Server) and NoSQL (Couchbase) environments
Ensure performance, scalability, security and reliability across systems
Establish and enforce best practices around CI/CD, testing and observability
Support centralized logging and monitoring practices to improve system visibility and troubleshooting
Mentor engineers, lead code reviews and promote long-term code quality and maintainability
Champion responsible use of AI-assisted development while maintaining engineering standards

Requirements

What you’ll need

Bachelor's degree or equivalent related work or military experience
6 years of experience in software development with strong focus on .NET 8, C#, and ASP.NET Core
Experience building and scaling full stack applications (backend + frontend)
Strong understanding of API design, microservices architecture, and distributed systems
Experience working with relational and NoSQL databases
Proven ability to lead technical design and mentor engineers
Experience working in Agile/Scrum environments and coordinating with offshore teams

Benefits

Comp & perks

Competitive pay
Paid time off includes: up to 8 holidays, up to 2 floating Diversity Days, Hourly: Earn up to 13 days PTO/ Salary: Earn up to 15 days PTO
Up to 40 hours bereavement leave
Up to 16 hours volunteer time
Jury duty
At least 2 weeks family bonding leave
Up to 40 hours prenatal care leave
401(k) retirement plan with up to 5% company match
Insurance: health, prescription, dental, vision, basic and supplemental life, short and long-term disability, accidental death and personal loss, business travel, legal services, ID theft, accident, critical illness, hospital indemnity
Employee Assistance Program (EAP)
Tuition reimbursement
Adoption assistance
Tax-Advantaged Accounts: Health Savings Account, Health Care Flexible Spending Account, Dependent Care Flexible Spending Account, Commuter Spending Account
Health Reimbursement Arrangement

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills & Tools

.NET 8C#ASP.NET CoreReactAngularSQL ServerCouchbaseAPI designmicroservices architectureAgile

Soft Skills

technical leadershipmentoringcode reviewscommunicationcollaboration

Certifications

Bachelor's degree