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Software Engineer I- CoStar Suite- Arlington, VA

CoStar Group


Job Location:

Arlington, TX - USA

Yearly Salary: $ 103000 - 154000
Posted: 8 August 2026 (30+ days ago)
Application Deadline: 5 November 2026
Vacancies: 1 Vacancy

Job Summary

Software Engineer I- CoStar Suite- Arlington VA


Job Description


Software Engineer I- CoStar Suite

Arlington VA

Company Overview

CoStar Group (NASDAQ: CSGP) is a leading global provider of commercial and residential real estate information analytics and online in the S&P 500 Index CoStar Group is on a mission to digitize the worlds 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.Weve 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 continue that effort today and are always working to improve and drive is how we deliver for our customers our employees and equipping the brightest minds with the best resources available we provide an invaluable edge in real estate.

About CoStar Suite

CoStar Suite is the global leader in commercial real estate information analytics and news. Commercial Real Estate industry professionals around the globe use CoStar Suite to access the most comprehensive data to make decisions with confidence. CoStar Suite delivers immediate verified commercial real estate information on over 5.9 million properties across every market.

Learn more about CoStar.

About the Role

As CoStars next Software Engineer you will have a direct impact on highly visible CoStar Suite web applications that touch millions of users. You continuously learn emerging technologies and architecture advancements and apply the learnings to improve CoStars software products.

This position is located in Arlington VA and is onsite Monday Thursday with the option to work from home on Friday.

Responsibilities

  • Design and develop high performance web applications used by thousands of users globally

  • Drive continuous improvement by focusing on engineering excellence

  • Influence CI/CD pipeline improvements

  • Collaborate closely with other Software Engineers across the organization.

  • Mentor junior developers review code and architecture and promote software development best practices

  • Continually evaluate emerging technologies to identify opportunities trends and best practices that can be used to strengthen CoStars technology platform and development practices

  • Develop and maintain an in-depth working knowledge of the CRE Industry and CoStarsbusiness model / technology

Basic Qualifications

  • Bachelors Degree from an accredited not for profit in-person university or college.

  • A track record of commitment to prior employers

  • 2 years of production developmentexperience inmoderntechnologies like React Vue TypeScriptNodeJS C# .Net OpenSearch Kafka SQL NoSQL

  • A demonstrable track record of building and launching successful products and platforms

  • Experience with cloud technologies like AWS Cloud Managed Services etc.

  • Experience in Agile/Scrum processes and Continuous delivery practices

  • Experienced in unit performance and automation testing

  • Experience leveraging AI to improve productivity

  • Deeply understand what drives the business for which you are building software

Preferred Qualifications and Skills

  • Experience managing a large Enterprise level code base code quality and dependencies

  • Experience with React and/or Nodejs in particular

  • Experience implementing AI powered product features

  • Excellent written and verbal communication skills

  • Commercial Real Estate(CRE)knowledge is a bonus

Whats in it for You

When you join CoStar Group youll 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.

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 Groups 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: $103000 - $154000 Annually

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

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CoStar Group is an Equal Employment Opportunity Employer; we maintain a drug-free workplace and perform pre-employment substance abuse testing


Required Experience:

IC


About Company

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The most recommended lease management platform for office and retail tenant portfolios of commercial real estate.

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