Associate Software Engineer - Irvine, CA

Associate Software Engineer - Irvine, CA

Job Description

CoStar Group (NASDAQ: CSGP) is a leading global provider of commercial and residential real estate information, analytics, and online marketplaces. Included in the S&Pa 500 Index, 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.

Learn more about CoStar.

We’re looking for an Associate Software Engineer with a passion for designing and building modern web applications. This role develops tools that power CoStar Group’s proprietary platform, supporting sales and research teams across our portfolio of brands - including , , , and  CoStar Group, we invest in early-career talent by providing hands‑on learning opportunities, meaningful responsibilities, and clear pathways for professional growth.

You'll be empowered to contribute ideas, solve complex challenges, and develop both the technical and collaborative skills needed to thrive in a fast-paced, innovative environment. CoStar Group offers competitive compensation, comprehensive benefits, performance-based career advancement, and the opportunity to help shape products that serve millions of users.

This position is located in Irvine, CA and offers a schedule of Monday to Thursday in office and the option to work from home on Friday.

At CoStar Group, our engineering teams build innovative, scalable solutions while following industry best practices for software development. You'll collaborate with experienced engineers to write clean, maintainable code, develop automated tests, participate in code reviews, and contribute to cross-functional design and planning discussions.

Working alongside talented teammates, you'll gain hands‑on experience with modern technologies including but not limited to leading JavaScript programming language and frameworks such as React, Vue, and Angular, Typescript, backend development language .NET, .NETCore, SQL, No

SQL, Postgres, AWS, Kafka, Databricks, and emerging AI-powered development tools like Git Hub Copilot and Claude Code.

• Currently pursuing a bachelor’s degree from an accredited, not-for-profit university or college in Computer Science, Software Engineering, or a comparable major.
• Must have an expected graduation date of December 2026 - June 2027.
• Minimum 3.0 cumulative GPA.
• At least 2 months of previous relevant internship or co‑op experience.
• Experience applying software engineering fundamentals through coursework, projects, internships, or work experience.
• Ability to discuss prior internship, project, or academic work, including the problem solved, technical approach, collaboration, and outcomes.

• Experience writing understandable, maintainable, and well-documented code.
• Interest in learning new technologies and building high-quality software.
• Demonstrated initiative and collaboration through academic, internship, extracurricular, or team-based experiences.
• Familiarity…