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Lead Software Engineer

Remote / Online - Candidates ideally in
Arlington, Arlington County, Virginia, 22201, USA
Listing for: CoStar
Full Time, Remote/Work from Home position
Listed on 2025-12-16
Job specializations:
  • Software Development
    Software Engineer, Full Stack Developer
Salary/Wage Range or Industry Benchmark: 100000 - 125000 USD Yearly USD 100000.00 125000.00 YEAR
Job Description & How to Apply Below

Lead Software Engineer

Job Description

Overview

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.

Co Star

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

Learn more about CoStar.

As CoStar’s next Lead Software Engineer, you will have a direct impact on highly visible CoStar Suite web applications that touch millions of users. You will continuously learn emerging technologies and architecture advancements and apply the learnings to improve CoStar’s 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.
  • Continuously evaluate emerging technologies to identify opportunities, trends, and best practices to strengthen CoStar’s technology platform and development practices.
  • Develop and maintain an in-depth working knowledge of the CRE Industry and CoStar’s business model/technology.

Basic Qualifications

  • Bachelor’s Degree from an accredited, not-for-profit university or college.
  • A proven commitment to prior employers.
  • 8+ years of production development experience in modern technologies such as React, Vue, Type Script, NodeJS, C#, .NET, Open Search, Kafka, SQL, No

    SQL.
  • A demonstrable track record of building and launching successful products and platforms.
  • Experience with cloud technologies like AWS and Cloud Managed Services.
  • Experience in Agile/Scrum processes and Continuous Delivery practices.
  • Experience with unit, performance, and automation testing.
  • Deep understanding of what drives the business for which you are building software.
  • Active role in mentoring developers and building consensus.

Preferred Qualifications and Skills

  • Experience managing a large enterprise-level codebase, ensuring code quality and managing dependencies.
  • Experience with C#, NodeJS, and React.
  • Excellent written and verbal communication skills.
  • Knowledge of the CRE industry is a bonus.

What’s in it for You

Joining CoStar Group means working in a collaborative and innovative culture alongside talented professionals. We offer competitive compensation, performance incentives, and support your professional growth through training, tuition reimbursement, and exchange programs.

Our benefits include:

  • Comprehensive healthcare coverage including Medical, Vision, Dental, and Prescription Drugs.
  • Life, legal, and supplementary insurance.
  • Mental health counseling services.
  • Commuter and parking benefits.
  • 401(K) plan with matching contributions.
  • Employee stock purchase plan.
  • Paid time off and tuition reimbursement.
  • On-site fitness facilities and wellness programs.

We welcome all qualified candidates eligible to work full-time in the U.S.

Note:

We cannot provide visa sponsorship for this role.

#LI-AR

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

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