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Senior Database Engineer; SQL

Job in Arlington, Arlington County, Virginia, 22201, USA
Listing for: CoStar
Full Time position
Listed on 2026-01-12
Job specializations:
  • IT/Tech
    Data Analyst, Database Administrator, Data Engineer
Salary/Wage Range or Industry Benchmark: 90000 - 120000 USD Yearly USD 90000.00 120000.00 YEAR
Job Description & How to Apply Below
Position: Senior Database Engineer (SQL)

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.

As a CoStar Database Developer, you will be responsible for architecting and building data solutions that operate on terabytes of data and scale to support the internal processes of our company and process over a billion dollars of revenue per year.

This position is located in Arlington, VA and offers the following schedule of 4 days onsite and 1 day remote per week.

RESPONSIBILITIES:

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

Drive the design of highly performant and highly available data solutions

Build solutions that operate on massive amounts of data in high-transaction-volume applications

Tune database performance using tools like SQL Profiler, Execution Plans

Create and maintain Power BI dashboards

Maintain documentation for database structures, processes, and best practices

Work with QA resources to ensure that the software delivered is of the highest quality

Act as a key member of the product launch team and work closely with Dev Ops to resolve operational issues

Evaluate emerging technologies to identify opportunities, trends, and best practices that can be leveraged to strengthen CoStar’s technology platform and development practices.

BASIC QUALIFICATIONS:

Bachelor’s Degree

4+ years of SQL database development experience

Demonstrable track record of building and launching successful products that leverage terabytes of data

Strong ability to analyze complex data sets and optimize queries

Define database architecture and development best practices

Experience with version control systems (e.g., TFS)

PREFERRED

QUALIFICATIONS AND SKILLS:

Experienced in database performance testing and SQL code unit testing strategies and implementations

Experience with No

SQL databases (e.g., Elastic Search)

Familiarity with BI tools (e.g., Power BI)

Scripting knowledge (e.g., Power Shell, Python) for automation

Knowledge of cloud platforms (e.g., Azure SQL, AWS RDS)

Comfortable facilitating discussions among database developers to exchange ideas and introduce new database technologies

Strong communication skills (with the business and technical partners)

WHATS IN IT FOR YOU:

Working at CoStar Group means you'll enjoy a culture of collaboration and innovation that attracts the best and brightest across a broad range of disciplines. In addition to generous compensation and performance-based incentives, you'll be supported in both 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

Commuter and parking benefits

401(K) retirement plan with matching contributions

Employee stock purchase plan

Paid time off

On-site fitness center and/or reimbursed fitness center membership costs (location dependent), with yoga studio, Pelotons, personal training, group exercise classes, as well as Segways and bikes available for use during the day

Complimentary gourmet coffee, tea, hot chocolate, prepared foods, fresh fruit, and other healthy snacks

Be part of a…

Position Requirements
10+ Years work experience
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