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# Software Engineer

- **Company:** CoStar Group
- **Location:** San Diego, CA, United States (Remote available)
- **Experience:** Expert
- **Salary:** $124,000.0 - $187,000.0
- **Contract:** Permanent contract
- **Skills:** .NET Framework, Amazon Web Services, Amazon Elastic Compute Cloud, Amazon S3, Application Performance Management, C Sharp (Programming Language), Cloud Computing, Code Generation, Software Quality, Code Review, Software Debugging, DevOps, Distributed Systems, Amazon DynamoDB, .NET Core, Backend, Cloudformation, Amazon Relational Database Service, Git Flow, Solid Principles, Api Design, Cloudwatch, Terraform, Code Restructuring, Databricks, Microservices
- **Published:** September 24, 2026
- **Apply:** https://www.thejobnetwork.com/job/senior-software-engineer-509977992

## About the Role

* Bachelor's degreefrom an accredited, not-for-profit, in-person college/university
 * A track recordof commitment to prior employers.
 * Strong experience with C# and .NET / .NET Core
 * Hands-on AWS experience (EC2, ECS/EKS, Lambda, S3, RDS, DynamoDB, CloudWatch)
 * Experience building APIs and backend services
 * Solid understanding of software design principles
 * Experience with Git-based workflows

Preferred Qualifications:

 * Practical experience using Claude for coding or code review
 * Experience with Databricks
 * Microservices or distributed systems experience
 * CI/CD pipelines and DevOps practices
 * Infrastructure-as-Code (Terraform, CloudFormation, CDK)
 * Experience with additional AI coding tools

## Description

We're seeking a Senior Software Engineer with strong C#/.NET experience, hands-on use of Claude for AI-assisted development, and proven experience building and operating systems on AWS. This role focuses on developing scalable, cloud-native solutions while leveraging modern AI tools to accelerate development and improve code quality., * Design, build, and maintain production applications using C# and .NET

 * Leverage Claude for code generation, refactoring, debugging, and analysis
 * Build and operate cloud-based solutions on AWS
 * Collaborate with product, architecture, and engineering teams
 * Participate in system design, code reviews, and technical decision-making
 * Improve application performance, scalability, and reliability
 * Mentor engineers and contribute to engineering best practices