Senior Data Engineer

Senior Data 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, 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.

Role Description

We are seeking a Senior Data Engineer to design and deliver scalable data platforms that power high-volume, data-driven applications.

Responsibilities

• Design, build, and maintain scalable data pipelines and data platforms
• Develop and optimize ETL/ELT processes for large, complex datasets
• Build and manage data solutions using Databricks and Spark
• Develop backend data services using C# / .NET
• Leverage AI-assisted coding tools (e.g., Claude Code) to accelerate development
• Design efficient data models and ensure high performance and reliability
• Collaborate with engineering, product, and DevOps teams to deliver production systems
• Ensure data quality, availability, and performance across systems
• Lead technical design decisions and mentor other engineers

Basic Qualifications

• Bachelor's degree required from an accredited, not-for-profit, in-person college/university
• A track record of commitment to prior employers
• 5+ years of data engineering experience
• Strong experience with data pipelines and ETL frameworks
• Experience building and scaling large data systems
• Experience with AWS-based data platforms and services

Preferred Qualifications

• Expertise with Databricks / Apache Spark, C# / .NET, and SQL/database design
• Experience with AI/ML data pipelines
• Familiarity with AI-assisted development tools (Claude Code or similar)
• Experience with streaming technologies (e.g., Kafka, Kinesis)
• Knowledge of CI/CD and DevOps practices

Benefits

• 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

Compensation

This position offers a base salary range from $124,000 to $190,000 a year, determined by relevant skills and experience, and a generous benefits plan.

Equal Employment Opportunity & Other

CoStar Group is an Equal Employment Opportunity Employer; we maintain a drug-free workplace and perform pre-employment substance abuse testing.