C#/.NET Sr. Software Engineer

C#/.NET Senior Software Engineer
Location: St. Paul, MN (Hybrid - minimum 3 days/week on-site)
Employment Type: Full Time
Salary Range: $110,000-$130,000

Overview
Seeking an experienced Software Engineer to help design, build, and support backend systems and APIs that power both internal tools and customer facing applications. This role focuses heavily on backend engineering in C#, system reliability, and technical collaboration with cross functional teams and external partners.

What You'll Do

• Develop and maintain high performance backend services and APIs using C#.


• Build RESTful interfaces following OpenAPI/Swagger standards.


• Use AI assisted development tools to improve coding speed and quality.


• Enhance system performance, scalability, and reliability.


• Implement and support integrations with internal platforms and outside vendors.


• Contribute to architectural improvements and modernization initiatives.


• Troubleshoot complex technical issues in production environments.


• Collaborate with product, business, and engineering teams.


• Provide technical guidance and mentorship to peers.

Tech Stack

• C#, .NET / ASP.NET


• REST APIs, OpenAPI / Swagger


• PostgreSQL and relational databases


• IIS, containerized services, Windows Server


• GitHub


• React (nice to have)


• VM and container based deployments


• AI powered development tools

What You Bring

• 5+ years of professional software development experience.


• Strong background in backend development with C#.


• Track record of building scalable, maintainable software systems.


• Experience with RESTful APIs and OpenAPI documentation.


• Strong analytical and problem solving skills.


• Clear, professional communication skills.


• Ability to work effectively with technical and non technical partners.

Why This Role
You'll help drive the evolution of core platforms, influence technical direction, and work with a team committed to high quality engineering and continuous improvement.

All qualified applicants will receive consideration for employment without regard to race, color, national origin, age, ancestry, religion, sex, sexual orientation, gender identity, gender expression, marital status, disability, medical condition, genetic information, pregnancy, or military or veteran status. We consider all qualified applicants, including those with criminal histories, in a manner consistent with state and local laws, including the California Fair Chance Act, City of Los Angeles' Fair Chance Initiative for Hiring Ordinance, and Los Angeles County Fair Chance Ordinance.