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Senior Database Engineer; SQL

Job in Arlington, Arlington County, Virginia, 22201, USA
Listing for: CoStar Group, Inc.
Full Time position
Listed on 2025-11-27
Job specializations:
  • IT/Tech
    Data Analyst, Database Administrator, Data Engineer
Salary/Wage Range or Industry Benchmark: 80000 - 110000 USD Yearly USD 80000.00 110000.00 YEAR
Job Description & How to Apply Below
Position: Senior Database Engineer (SQL)

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. With over 35 years of experience, we continuously refine and transform our approach to deliver invaluable solutions to our customers, employees, and investors.

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 and 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 strengthen CoStar’s technology platform and development practices.
BASIC QUALIFICATIONS
  • Bachelor’s Degree required from an accredited, not for profit university or college.
  • 4+ years of SQL database development experience.
  • Demonstrable track record of building and launching successful products that leverage terabytes of data.
  • Database design, T-SQL programming, performance tuning, and index analysis.
  • 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
  • Experience 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 business and technical partners.
WHATS IN IT FOR YOU
  • 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.
  • Tuition reimbursement.
  • On-site fitness center and/or reimbursed fitness center membership costs (location dependent), with yoga studio, Peloton, 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.
EEO STATEMENT

CoStar Group is an Equal Employment Opportunity Employer; we maintain a drug‑free workplace and perform pre‑employment substance abuse testing. CoStar Group (NASDAQ: CSGP) is a leading global provider of commercial and residential real estate information, analytics, and online marketplaces. We welcome all qualified candidates who are currently eligible to work full‑time in the United States to apply. However, please note that CoStar is not able to provide visa sponsorship for this position #LI-DB3
.

CoStar Group (NASDAQ: CSGP) is an equal opportunity workplace and affirmative action employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, gender, gender identity or expression, sexual orientation, national origin, genetics, disability, age, or veteran status. CoStar is also committed to compliance with all fair employment practices regarding citizenship and immigration status. If you are a qualified individual with a disability or a disabled veteran, you may request a reasonable accommodation if you are unable or limited in your ability to use or access  as a result of your disability.

You can request reasonable accommodations by calling 1‑855‑840‑1715 or by sending an email to

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Position Requirements
10+ Years work experience
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