Associate Software Engineer - Richmond, VA

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.  

We have been living and breathing the world of real estate information and online marketplaces for over 35 years, giving us the perspective to create truly unique and valuable offerings to our customers.  We’ve continually refined, transformed, and perfected our approach to our business, creating a language that has become standard in our industry, for our customers, and even our competitors.  We continue that effort today and are always working to improve and drive innovation.  This is how we deliver for our customers, our employees, and investors.  By equipping the brightest minds with the best resources available, we provide an invaluable edge in real estate. 

CoStar Group’s websites attracted over 111 million average monthly unique visitors in the second quarter of 2025, serving clients around the world. Headquartered in Arlington, Virginia, CoStar Group is committed to transforming the real estate industry through innovative technology and comprehensive market intelligence.  

Learn more about CoStar.  

Job Description:  

We’re looking for an Associate Software Engineer with a passion for designing and building modern web applications. This role supports our Web Enterprise team in developing the tools that power CoStar Group’s proprietary CRM platform, supporting sales and research teams across our portfolio of brands—including Homes.com, CoStar.com, Apartments.com, and LoopNet.com. 

This position offers a strong foundation for professional and technical growth, with access to mentorship, leading technologies, and a collaborative team environment. You'll have the opportunity to contribute ideas, take on direct responsibilities, and grow your career at a dynamic, stable, and rapidly expanding company. We offer competitive industry salaries, comprehensive benefits, annual performance reviews, and clear paths for advancement. 

This position is located in our  Richmond, VA office and offers a schedule of Monday-Thursday in office and Friday remote. 

Basic Qualifications:  

• Bachelor's degree required from an accredited, not for profit University or College, in computer science or computer/software engineering, or comparable major graduating in May 2026 or December 2025 

• Minimum 3.0 cumulative GPA  

• Must have previous, relevant internship experience     

• Experience applying at least 5 of the following programming languages and technologies or comparable programming languages and technologies:      

• TypeScript 

• React 

• Angular 

• C# 

• .NET 

• SQL 

• Python 

• Cloud technologies (e.g., AWS) 

• NoSQL databases 

• AI Technologies  

• ElasticSearch 

• Distributed/message-based systems (e.g., Kafka)  

Preferred Qualifications and Experiences: 

• Ability to write understandable, maintainable, and well-documented code. 

• Strong interest in technology and continuous learning, with a passion for building high-quality software. 

• Demonstrated leadership potential through academic, internship, or extracurricular experiences. 

• Works well in team environments and collaborates effectively across disciplines. 

• Familiarity with Agile development practices and the full Software Development Lifecycle (SDLC). 

• Understanding of web service and API design (e.g. REST, GaphQL) 

• Exposure to AI libraries (e.g., TensorFlow, PyTorch, Hugging Face) 

• Familiarity with AI development tools or APIs (e.g., OpenAI, LangChain, AWS SageMaker). 

• Capstone or personal projects involving NLP, computer vision, or LLMs 

What’s in it for you?    

When you join CoStar Group, you’ll experience a collaborative and innovative culture working alongside the best and brightest to empower our people and customers to succeed.  

We offer you generous compensation and performance-based incentives. CoStar Group also invests in your professional and academic growth with internal training and tuition reimbursement. 

Our benefits package includes (but is not limited to):   

• Comprehensive healthcare coverage: Medical / Vision / Dental / Prescription Drug   

• Life, legal, and supplementary insurance   

• Virtual and in person mental health counseling services for individuals and family   

• 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 (location dependent), with yoga studio, Pelotons, personal training, group exercise classes  

• Access to CoStar Group’s Diversity, Equity, & Inclusion Employee Resource Groups   

• Complimentary gourmet coffee, tea, hot chocolate, fresh fruit, and other healthy snacks   

We welcome all qualified candidates who are currently eligible to work full-time in the United States to apply. Applicants must be currently authorized to work in the United States on a full-time basis. CoStar Group will not sponsor or support applicants for work visas for this position (i.e., H-1B, F-1 OPT, F-1 STEM OPT, F-1 CPT, J-1, TN).