CoStar Group

Associate Software Engineer - Arlington, VA

CoStar Group$100K — $105K *
Information Technology
Less than 5 years of experience
Job Overview by Ladders

Qualifications

  • Pursuing a Bachelor's degree in Computer Science, Software Engineering, or related field from an accredited university
  • Expected graduation date of December 2026 - June 2027
  • Minimum GPA of 3.0
  • At least 2 months of relevant internship or co-op experience
  • Experience with software engineering fundamentals through academic or practical work

Responsibilities

  • Collaborate with experienced engineers to design and build modern web applications
  • Write clean and maintainable code adhering to best practices
  • Develop automated tests and participate in code reviews
  • Contribute to cross-functional design and planning discussions
  • Gain hands-on experience with modern technologies and programming languages

Benefits

  • Comprehensive healthcare coverage (medical, vision, dental)
  • Life and supplemental insurance
  • Mental health counseling services for individuals and families
  • 401(K) retirement plan with company matching contributions
  • Tuition reimbursement for continued education
  • Access to on-site fitness facilities and healthy snacks
  • Employee Resource Groups for community and networking
Full Job Description
Associate Software Engineer - Arlington, VA


Job Description


Associate Software Engineer – Arlington

Role Description:

 

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 Homes.com, CoStar.com, Apartments.com, and LoopNet.com.  

 

At 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 Arlington, VA and offers a schedule of Monday to Thursday in office and the option to work from home on Friday. 

 

What You’ll do:  

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, NoSQL, Postgres, AWS, Kafka, Databricks, and emerging AI-powered development tools like GitHub Copilot and Claude Code. 

 

We're looking for curious, adaptable students who are eager to learn, embrace new technologies, and apply strong software engineering fundamentals to solve meaningful business challenges. This role provides the building blocks for a strong and rewarding technical career, offering mentorship, real-world experience, and continuous opportunities for professional growth. 

Basic Qualifications:  

  • 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. 

 

Preferred Qualifications and Experiences: 

  • 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 with Agile development practices, the Software Development Lifecycle, APIs, web services, or application design concepts. 

  • Exposure to programming languages, databases, cloud concepts, AI/machine learning, frameworks, or other technical tools through coursework, projects, internships, or personal learning. 

 

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) 

  • Access to CoStar Group’s Employee Resource Groups 

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

 

The final salary or hourly rate offered for this role will fall within the range set forth below based on a variety of factors, including but not limited to, geographic location, skills, and competencies. 

 

Base Compensation: $100,000 - $105,000 annually 

 

We welcome all qualified candidates who are currently eligible to work full-time in the United States to apply. However, please note that CoStar Group is not able to provide visa sponsorship for this position. 


About CoStar Group

CoStar Group is a provider of information, analytics and marketing services to the commercial property industry in the United States, Canada, the United Kingdom, France, Germany, and Spain. Founded in 1987 by Andrew C. Florance, the company has grown to include online database CoStar and many online marketplaces, including Apartments.com, LoopNet, Lands of America, and BizBuySell. CoStar Group was founded in 1987 by Andrew C. Florance in Washington, D.C. In 1998, the company became a public company via an initial public offering on the NASDAQ, raising $22.5 million. In 2004, CoStar Group, Inc. v. LoopNet, Inc. became a landmark case in copyright law. In October 2009, the company acquired a building in Washington, D.C., now its headquarters, from the Mortgage Bankers Association for $41.3 million. The building had sold 2 years earlier for $79 million and the company claims it used its analytics data to know the right time to buy. In April 2012, CoStar Group acquired LoopNet for $860 million. In April 2014, the company acquired Apartments.com for $585 million. In April 2015, the company acquired Apartment Finder for $170 million. In July, the company acquired Belbex an online marketplace and information provider for commercial property based in Spain. In February 2017, the company acquired Westside Rentals. In February 2018, the company acquired ForRent.com from Dominion Enterprises for $350 million in cash and $35 million in stock. In October, the company acquired Realla.co an online marketplace for commercial property based in the United Kingdom. In November, the company acquired Cozy Services for $68 million.
Learn more about CoStar Group
Size
4,742 employees
Market Cap
$31.3 billion
Industry
Net Income
$227.1 million
Founded
1987
5 Year Trend
+18.3%
Revenue
$1.6 billion
NASDAQ

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