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Lead Software Engineer
full-timeRichmond

Summary

Location

Richmond

Type

full-time

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About this role

Lead Software Engineer

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Job Description

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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.

Our team is responsible for building software in support of CoStar Group's sales teams. We think big, building innovative CRM features that empowers our sales teams' success. We are a collaborative group with a mix of native mobile, data, API / platform, and front-end skills, and we are working to drive our company's future with our proprietary CRM system.

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

Responsibilities

  • Building customer facing web applications using the latest React and TypeScript frameworks.
  • Build micro services and RESTful APIs C# and .NET Core
  • Drive and lead software design, developing standards and performing code reviews, that result in robust a code base that is efficient and maintainable.
  • Continually evaluate emerging technologies to identify opportunities, trends, and best practices that can be leveraged to strength CoStar’s technology platform and develop practices.
  • Develop comprehensive application testing procedures to ensure high quality applications for tens of thousands of users.

Basic Qualifications

  • Bachelor’s Degree required from an accredited, not-for-profit, in-person college/university
  • 8+ years of software development experience with OOP languages
  • Demonstrated experience in architecting, designing and building large scale distributed, services-oriented systems and web applications in an agile environment
  • Experience building RESTful APIs using C#
  • Proficient understanding of code versioning tools such as Git.
  • Familiarity with CI/CD deployment processes
  • A track record of commitment to prior employer

Preferred Qualifications and Skills

  • Experience with SQL
  • Experience with Elasticsearch or OpenSearch
  • Strong communication skills (to both business and technical partners)
  • Data modeling experience from conceptual, logical and physical designs

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.  However, please note that CoStar Group is not able to provide visa sponsorship for this position. 

#LI-KW1

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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

Other facts

Tech stack
Software Development,OOP Languages,Architecting,Designing,Building Large Scale Systems,Web Applications,Agile Environment,RESTful APIs,C#,Code Versioning,Git,CI/CD Processes,SQL,Elasticsearch,Data Modeling,Communication Skills

About CoStar

CoStar Group (NASDAQ: CSGP) is a global leader in commercial real estate information, analytics, online marketplaces, and 3D digital twin technology. Founded in 1986, CoStar Group is dedicated to digitizing the world’s real estate, empowering all people to discover properties, insights, and connections that improve their businesses and lives.

CoStar Group’s major brands include CoStar, a leading global provider of commercial real estate data, analytics, and news; LoopNet, the most trafficked commercial real estate marketplace; Apartments.com, the leading platform for apartment rentals; Homes.com, the fastest-growing residential real estate marketplace; and Domain, one of Australia’s leading property marketplaces. CoStar Group’s industry-leading brands also include Matterport, a leading spatial data company whose platform turns buildings into data to make every space more valuable and accessible, STR, a global leader in hospitality data and benchmarking; Ten-X, an online platform for commercial real estate auctions and negotiated bids; and OnTheMarket, a leading residential property portal in the United Kingdom.

CoStar Group’s websites attracted over 143 million average monthly unique visitors in the third 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. From time to time, we plan to utilize our corporate website as a channel of distribution for material company information. For more information, visit CoStarGroup.com.

Team size: 5,001-10,000 employees
LinkedIn: Visit
Industry: Real Estate

What you'll do

  • The Lead Software Engineer will build customer-facing web applications using React and TypeScript, as well as develop microservices and RESTful APIs using C# and .NET Core. They will also drive software design, develop standards, and perform code reviews to ensure a robust code base.

Ready to join CoStar?

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Frequently Asked Questions

What does a Lead Software Engineer do at CoStar?

As a Lead Software Engineer at CoStar, you will: the Lead Software Engineer will build customer-facing web applications using React and TypeScript, as well as develop microservices and RESTful APIs using C# and .NET Core. They will also drive software design, develop standards, and perform code reviews to ensure a robust code base..

Why join CoStar as a Lead Software Engineer?

CoStar is a leading Real Estate company.

Is the Lead Software Engineer position at CoStar remote?

The Lead Software Engineer position at CoStar is based in Richmond, Virginia, United States. Contact the company through Clera for specific work arrangement details.

How do I apply for the Lead Software Engineer position at CoStar?

You can apply for the Lead Software Engineer position at CoStar directly through Clera. Click the "Apply Now" button above to start your application. Clera's AI-powered platform will help match your profile with this opportunity and guide you through the application process. You can also learn more about CoStar on their website.