Senior Software Engineer (C#/.NET)

CoStar Group (NASDAQ: CSGP) is a leading global provider of commercial and residential real estate information, analytics, and online marketplaces. Included in the S&P 500 Index and the NASDAQ 100, CoStar Group is on a mission to digitize the world’s real estate, empowering all people to discover properties, insights and connections that improve their businesses and lives. Homes.com is already one of the fastest growing real estate portals in the industry, we are driven to be #1. Just ask Brad Bellflower, Chief Change Officer at Apartments.com. After its acquisition in 2014, Apartments.com quickly turned into the most popular place to find a place. Proven success at the highest level – and we’re doing it again with the new Homes.com. Homes.com is a CoStar Group company with 20+ years' experience in leading and growing digital marketplaces. We pride ourselves on continually improving, innovating, and setting the standard for property search and marketing experiences. With Homes.com we’re building a brand on the cusp of defining the industry. We’re looking for big thinkers, brave leaders, and creative advertising wizards ready to influence a new age of homebuying within a tried-and-true, award-winning company. We're looking for an object-oriented Senior Software Engineer who takes pride in backend development to contribute to building innovative, scalable applications in pursuit of a great user experience. You’ll help develop the next generation of residential products, apps, and services. You’ll gain experience in many different areas and have the opportunity to make a real impact to the company and real estate industry. This position is located in Arlington, VA with a 4 day onsite and 1-day remote schedule. Responsibilities include designing and developing high performance web applications used by hundreds of thousands of users globally, using Object Oriented design principles and software design patterns to attain high reusability and maintainability, promoting consistent architecture patterns for design and development within and across Homes development teams, collaborating closely with other Software Engineers across the organization, advocating standards-driven technology, facilitating discussions among other .NET and database developers to exchange new ideas and improvements, and continually evaluating emerging technologies to identify opportunities, trends and best practices that can be used to strengthen CoStar’s technology platform and development practices. Basic qualifications include a Bachelor’s Degree from an accredited, not for profit university or college (preferably in Computer Science, Engineering or a related field), a track record of commitment to prior employers, 5+ years of production development experience with C#, .NET (or .NET Core) and/or Java, experience delivering products that meet specifications and performance SLA, experience in unit, performance, and automation testing, and a deep understanding of what drives the business for which you are building software. Preferred qualifications and skills include experience in relational database design (AWS RDS, MS SQL) including performance tuning, experience with AWS S3, Step Functions, Lambda, SQS, Dynamo, ElastiCache, Apache Kafka and Datadog, and a demonstrable track record of building and launching successful products and platforms. Benefits include comprehensive healthcare coverage, life, legal, and supplementary insurance, virtual and in person mental health counseling services, commuter and parking benefits, 401(K) retirement plan with matching contributions, employee stock purchase plan, paid time off, tuition reimbursement, on-site fitness center and/or reimbursed fitness center membership costs, access to CoStar Group’s Diversity, Equity, & Inclusion Employee Resource Groups, and complimentary gourmet coffee, tea, hot chocolate, fresh fruit, and other healthy snacks. CoStar Group is an Equal Employment Opportunity Employer; they maintain a drug-free workplace and perform pre-employment substance abuse testing. The company is not able to provide visa sponsorship for this position.