Senior Software Engineer (.NET)

CoStar Group, a leading provider of real estate information and analytics listed on NASDAQ and included in the S&P 500 Index, is seeking a Senior Software Engineer to join their Platform team. This role focuses on building backend services that power CoStar's suite of products, including Apartments.com, Homes.com, and CoStar. The position offers an exciting opportunity to work with large-scale, distributed systems serving thousands of users.

The role requires expertise in .NET development, particularly C#, along with experience in database design and T-SQL programming. You'll be working with modern technologies including AWS components and Web APIs to deliver robust, scalable solutions. The position combines technical challenges of handling terabytes of data with the opportunity to impact millions of users across multiple major real estate platforms.

Working from the Arlington, VA office with a hybrid schedule (4 days onsite, 1 day remote), you'll be part of a company that values innovation and continuous improvement. CoStar Group offers comprehensive benefits including healthcare, 401(k) matching, stock purchase plans, and various wellness perks. The company maintains a collaborative culture focused on professional growth and development.

This is an excellent opportunity for a senior engineer who wants to work on meaningful projects at scale, with the backing of a successful, established company in the real estate technology sector. The role offers both technical challenges and the chance to mentor others while working on products that impact the real estate industry nationwide.