Lead Software Engineer (.NET)
About The Position
Roadrunner is seeking a highly motivated Lead Software Engineer (.NET) to join their growing team. This role involves modernizing core platforms, moving from legacy systems to cloud-native, API-first services on Azure, and expanding AI use cases. The Lead Software Engineer will drive engineering practices and hands-on design within the applications team, working closely with the Director of Architecture, and their work will directly impact freight movement. There are opportunities for future leadership growth, potentially expanding responsibility for people, priorities, and technical direction based on performance and business needs.
Requirements
- Bachelor's degree in a related field, or equivalent experience
- 8+ years building production software in C# and .NET, including modern .NET, ASP.NET Core, and Entity Framework Core
- Strong SQL Server skills: data modeling, query tuning, performance
- Modern front-end knowledge (JavaScript/TypeScript); backend depth matters most.
- Hands-on Azure experience (App Service, Functions, Azure SQL, Storage, Application Insights, or similar)
- Experience designing RESTful APIs and system integrations
- A track record of improving or modernizing legacy .NET Framework systems
- Experience setting engineering practices (Git-based workflows, CI/CD, testing, code review) and mentoring other developers
- Comfort explaining technical tradeoffs to non-technical stakeholders
Nice To Haves
- Transportation, logistics, LTL, or supply chain experience
- Hands-on React or Angular experience
- API gateway, microservices, or identity/authorization experience
- Experience leading Scrum, Agile, or Kanban teams
- Hands-on use of AI coding tools or building AI-enabled features
Responsibilities
- Design and build scalable, secure services and web apps (C#, .NET 8+, ASP.NET Core, React, Azure)
- Lead the modernization of legacy applications: refactoring, re-platforming, and replacing them step by step
- Design APIs and integrations with internal systems, customers, and partners
- Own production quality: CI/CD, automated testing, observability, and secure coding
- Mentor engineers on the team through code reviews, design discussions, and day-to-day coaching
- Work directly with operations and business leaders to turn real freight problems into software
Benefits
- medical
- dental
- vision
- 401(k)
- paid time off
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What This Job Offers
Job Type
Full-time
Career Level
Senior
Education Level
Associate degree
