CoStar Group

Senior Database Engineer- Arlington, VA

CoStar Group • $147K — $190K *
Arlington, VA 22204In-Person
Information Technology
5 - 7 years of experience
Today
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Job Overview by Ladders

Qualifications

  • Bachelor's degree in Computer Science or related field required.
  • 5+ years in data engineering or software engineering with a data focus.
  • Advanced SQL and strong programming skills in Python, Scala, or Java.
  • 3+ years of experience with relational platforms such as SQL Server, including tuning.
  • 2+ years building production solutions on Databricks or equivalent distributed platforms.
  • Experience with ETL/ELT pipeline optimization for complex datasets.
  • Ability to develop data models from business requirements.

Responsibilities

  • Design and implement data models and architecture on Databricks and AWS.
  • Build high-volume ETL/ELT pipelines for analytics and reporting.
  • Optimize SQL Server workloads for performance efficiency.
  • Integrate data from multiple internal and external sources into enterprise models.
  • Ensure data quality, testing, and observability frameworks are built and maintained.
  • Support production data pipelines by diagnosing and resolving issues.
  • Contribute to architectural decisions and mentor junior engineers.

Benefits

  • Comprehensive healthcare coverage including medical, vision, and dental.
  • Life, legal, and supplementary insurance options available.
  • 401(K) retirement plan with company matching contributions.
  • Paid time off and tuition reimbursement for professional growth.
  • On-site fitness facilities and wellness programs available.
Full Job Description
Senior Database Engineer- Arlington, VA

Job Description

CoStar Group is seeking a Senior Database Engineer to join our Enterprise Data Services - Finance (EDS-F) team and help build and modernize the data platforms that power our financial systems. This is a hands-on data engineering role, not a database administration position, where you'll design data models, build and optimize data pipelines, tune complex T-SQL, and develop scalable data quality solutions. You'll work across our established SQL Server environment supporting live financial operations and our emerging cloud data platform supporting analytics and new products. Working with large, complex financial datasets, you'll focus on accuracy, traceability, performance, and scalability while partnering with Software Engineering, Product, DBA, DevOps, and Finance teams. Our technology stack includes SQL Server, Databricks, Snowflake, Kafka, NiFi, Airflow, Elasticsearch, and AWS.

This position is located in Arlington, VA and is in office Monday through Thursday and work from home on Friday.

Responsibilities
  • Design and build data models, data pipelines, and cloud data architecture on Databricks, Snowflake, and AWS.
  • Build and maintain high-volume ETL/ELT pipelines for analytics, operational reporting, and product features.
  • Design dimensional models and database structures that give fast and predictable query performance.
  • Tune SQL Server workloads. This includes stored procedures, execution plans, and index strategy.
  • Integrate data from internal and external sources into governed enterprise models.
  • Build data quality, lineage, testing, monitoring, and observability frameworks.
  • Optimize processing, storage, and query cost across large datasets.
  • Apply SOX and audit controls to financial data pipelines. This includes change control, access control, and evidence capture.
  • Automate data infrastructure and data collection across CoStar products.
  • Support production pipelines. Find the root cause of failures and prevent a repeat.
  • Contribute to architecture decisions, set engineering standards, and mentor other engineers.


Basic Qualifications
  • Bachelor's Degree required from an accredited, not for profit, in person, university or college. Degree in Computer Science, Software Engineering, Information Systems, or a related technical field is preferred.
  • A track record of commitment to prior employers
  • 5+ years in data engineering, backend engineering, or software engineering, with a focus on data-intensive systems.
  • Advanced SQL. Strong programming skills in Python, Scala, or Java.
  • 3+ years with a relational platform such as SQL Server or PostgreSQL, including query and index tuning.
  • 2+ years building production solutions on Databricks, Spark, or an equivalent distributed processing platform.
  • Experience with dimensional modeling, data warehouse design, and data architecture.
  • Experience building and optimizing ETL/ELT pipelines for large and complex datasets.
  • Experience with an orchestration tool such as Apache Airflow or Apache NiFi in production.
  • Experience with software engineering practice: version control, automated tests, CI/CD, and code review.
  • Experience with data quality validation, performance tuning, monitoring, and production support.
  • Ability to turn business requirements into a data model and a delivery plan.
  • Clear written and verbal communication with technical and business audience.


Preferred Qualifications and Skills
  • Experience with streaming platforms such as Kafka or Spark Streaming.
  • AWS experience but experience with Azure or Google Cloud Platform is also relevant.
  • NoSQL stores such as DynamoDB, and object storage such as Amazon S3.
  • Experience with cloud-native compute, container, and serverless services.
  • Experience with data governance, metadata management, lineage, and observability tooling.
  • Experience with Docker and Kubernetes.
  • Experience with financial data under SOX, or with another regulated data domain.
  • Knowledge of Elasticsearch or a similar search platform.
  • Experience with business intelligence tools such as Power BI.
  • Experience with AI-assisted development tools and agent-based workflows.
  • Familiarity with machine learning, large language models, or prompt engineering.


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 Employee Resource Groups
  • Complimentary gourmet coffee, tea, hot chocolate, fresh fruit, and other healthy snacks


The final salary or hourly rate offered for this role will fall within the range set forth below based on a variety of factors, including but not limited to, geographic location, skills, and competencies.

Base Compensation: $147,000- $190,000 Annually

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.

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About CoStar Group

CoStar Group is a provider of information, analytics and marketing services to the commercial property industry in the United States, Canada, the United Kingdom, France, Germany, and Spain. Founded in 1987 by Andrew C. Florance, the company has grown to include online database CoStar and many online marketplaces, including Apartments.com, LoopNet, Lands of America, and BizBuySell. CoStar Group was founded in 1987 by Andrew C. Florance in Washington, D.C. In 1998, the company became a public company via an initial public offering on the NASDAQ, raising $22.5 million. In 2004, CoStar Group, Inc. v. LoopNet, Inc. became a landmark case in copyright law. In October 2009, the company acquired a building in Washington, D.C., now its headquarters, from the Mortgage Bankers Association for $41.3 million. The building had sold 2 years earlier for $79 million and the company claims it used its analytics data to know the right time to buy. In April 2012, CoStar Group acquired LoopNet for $860 million. In April 2014, the company acquired Apartments.com for $585 million. In April 2015, the company acquired Apartment Finder for $170 million. In July, the company acquired Belbex an online marketplace and information provider for commercial property based in Spain. In February 2017, the company acquired Westside Rentals. In February 2018, the company acquired ForRent.com from Dominion Enterprises for $350 million in cash and $35 million in stock. In October, the company acquired Realla.co an online marketplace for commercial property based in the United Kingdom. In November, the company acquired Cozy Services for $68 million.
Learn more about CoStar Group
Size
4,742 employees
Market Cap
$31.3 billion
Industry
Information Technology
Net Income
$227.1 million
Founded
1987
5 Year Trend
+18.3%
Revenue
$1.6 billion
NASDAQ
CSGP
* Ladders Estimates

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