Senior Software Engineer

Senior .NET Software Engineer (ASP.NET Core / C# / AWS) Location: Remote Software Engineer III: 6–10 years experience This project follows a 10-year roadmap and offers long-term stability and growth. About the Role Changeis, Inc. is seeking a highly skilled Senior .NET Software Engineer to support our work with the Supply Chain Systems Team. This role is heavily focused on ASP.NET Core development, backend services, and cloud-based application architecture within an enterprise SCM-ERP platform. You will work closely with cross-functional teams to design, build, and maintain scalable .NET applications while supporting DevSecOps and cloud integration efforts. Key Responsibilities Design, develop, and maintain ASP.NET Core / C# applications and APIs Build and enhance backend services and microservices architecture Collaborate with architects and product teams to deliver scalable solutions Integrate applications with AWS services (EC2, S3, RDS, etc.) Participate in CI/CD pipeline development and deployment processes Ensure application performance, security, and scalability Troubleshoot and resolve production issues Contribute to system design, code reviews, and best practices Support integration with SCM-ERP (IFS) systems Required Qualifications U.S. Citizenship required Bachelor’s degree in Computer Science, IT, Engineering, or related field (or equivalent experience) 6–15 years of software development experience (C# / .NET) Strong experience with ASP.NET Core and Web API development Experience building scalable backend systems and RESTful APIs Experience working in Agile / Scrum environments Experience with AWS cloud services Ability to learn new technologies quickly Highly Preferred (this is where you filter stronger candidates) Experience with SCM-ERP (IFS) within FAA or federal environments Experience with microservices architecture Experience with containerization (Docker, Kubernetes, OpenShift/ROSA) Familiarity with DevSecOps practices and CI/CD pipelines Knowledge of infrastructure-as-code (Terraform, Ansible, etc.) Experience with federal security standards (FedRAMP, NIST)