CoStar Group - Senior Software Engineer (Front-end)

San Diego, CA US
USD 124k - 211k
React JavaScript TypeScript HTML CSS Git GraphQL API
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CoStar Group - Senior Software Engineer (Front-end)


Job Description


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.  

The Analytics team is responsible for the development of CoStar's customer-facing Real Estate Analytics products.  We think big, creating innovative data-intensive applications that take the vast amount of data collected by our CoStar Research teams to create a fast, reliable, and intuitive analytics platform for our customers.  We are a collaborative group with a mix of big data, API/platform and front-end skills, and we are growing rapidly to help invent the future of Real Estate Analytics. 

We are searching for an experienced Senior Front End Developer to join our team and drive the full-lifecycle development of this critical product.

This position is located in San Diego, CA (UTC Area) and offers the following hybrid schedule option:

  • 3 days onsite, 2 days remote


  • Designing, building, testing, and deploying scalable, reusable, and maintainable applications that handle large amounts of data.
  • Taking full ownership of your work, developing solutions to complex problems from concept through delivery.
  • Leading in setting architectural best practices and standards for our team, and evangelizing across development teams within the whole company
  • Providing high-quality technical guidance and mentoring to other team members
  • Deep understanding of the design and architecture of our systems, including documentation and architectural diagrams
  • Collaborating with other engineering leads (on your team and across the broader organization) on larger, shared system architectures
  • Collaborating with other product team members - Engineers, QA, Product Owners, etc.
  • Gaining a deep understanding of the CoStar business, including the Analytic products.


  • Bachelor’s Degree required from an accredited, not for profit university or college. MSc or PhD is a plus.  
  • A track record of commitment to prior employers
  • 7+ years of professional software development experience.
  • Strong working knowledge of modern React, JavaScript / TypeScript
  • Experience building front end frameworks using modern bundlers
  • Experience with testing frameworks such as Jest, Mocha, and Chai
  • Knowledge of HTML5, CSS3, and CSS preprocessors
  • Deep expertise with software development best practices, including standards, code reviews, source control, builds, testing and operations.
  • Deep expertise with Source Control, such as Git or TFS.


  • Expertise with React ecosystem.
  • Expertise with Apollo GraphQL
  • Expertise configuring, maintaining, and optimizing Webpack, RollupJS, and/or Lerna Monorepo configurations.
  • Expertise building common/shared Javascript module packages.
  • Expertise with building high scalable and performant software products using Amazon Web Services
  • Expertise with D3 or other visualization and charting libraries
  • Experience with testing frameworks such as Jest, Mocha, and Chai

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, tuition reimbursement, and an inter-office exchange program.

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.

This position offers a base salary range of $124,000 - $211,000, based on relevant skills and experience and includes a generous benefits plan.




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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