CoStar Realty Information, Inc. seeks a Senior Software Engineer to design, build, test, and deploy scalable, reusable and maintainable applications that handle large amounts of data. Develop, test, deploy, and support the software production process. Collaborate on matters of technical architecture, design and code. Implement processes for evolution and improvement. Explore new technologies, tools, and best practices. Drive the full-lifecycle development of critical projects. Position requires a Bachelor’s degree in Computer Science, Engineering, Information Systems, or a related STEM field, followed by 5 years of progressively responsible experience with systems software operations support and configuration. Experience must include a minimum of: 5 years of experience with applying SOLID and Object Oriented Design principles to achieve performant, testable, and maintainable code; 5 years of experience with interpreting product requirements and translating them into working APIs; and 5 years of experience with API services, Azure DevOps, C#, TSQL, .NET, and unit testing. Job location: San Diego, CA. Salary: $156,000.00 to $186,185.00 To apply, please visit http://costargroup.com/careers and enter Job Code R31519 when prompted. Alternatively, please send your resume, cover letter, and a copy of the ad to I. Zeng, Team Lead, Technical Recruiting, CoStar, 17600 Laguna Canyon Road, Irvine, CA 92618.