Senior Software Engineer
Arlington, Arlington County, Virginia, 22201, USA
Listed on 2025-12-16
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Software Development
Full Stack Developer, Software Engineer
Overview
Senior Software Engineer
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 Senior Software Engineer, you will have a direct impact on highly visible CoStar Suite web applications that touch millions of users. You continuously lean 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, 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 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
- Bachelor’s Degree required from an accredited, not for profit university or college
- A track record of commitment to prior employers
- 6+ years of production development experience in modern technologies, like 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, Cloud Managed Services, etc.
- Experience in Agile/Scrum processes, and Continuous delivery practices
- Experienced in unit, performance, and automation testing
- Deeply understand what drives the business for which you are building software
- Take an active role in mentoring developers with ability to build consensus
- Experience managing a large Enterprise level code base, code quality and dependencies
- Experience with C#, NodeJS, and/or React in particular
- Excellent written and verbal communication skills
- Commercial Real Estate (CRE) knowledge is a bonus
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…
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