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Senior Data Engineer

Pay
$124,000–190,000/year · Base — pay source
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 from $124,000 to $190,000 a year, determined by relevant skills and experience, and a generous benefits plan. #LI-CG1
Read the full posting
Work setting
Not stated
Employment
Full-time — employment source
Employment type in the employer’s posting: FULL_TIME
From the employer’s posting

Before you apply

Work authorization
Must already have the right to work in the USWe welcome all qualified candidates who are currently eligible to work full-time in the United States to apply

What you’ll work on

Full posting

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

This position is located in San Diego, CA and has the work schedule of 4 days onsite and 1 day work from home.

  • Design, build and maintain scalable data pipelines and platforms

  • Develop and optimize ETL/ELT processes for large, complex datasets

  • Build and manage data solutions using Databricks and Spark

  • Develop backend data services in C# / .NET

  • Lead technical design decisions and mentor other engineers

From the employer’s posting
We are seeking a Senior Data Engineer to design and deliver scalable data platforms that power high-volume, data-driven applications. This role focuses on building reliable data pipelines, enabling analytics at scale, and leveraging modern AI-assisted coding tools (e.g., Claude Code) to improve engineering efficiency and quality.
This position is located in San Diego, CA and has the work schedule of 4 days onsite and 1 day work from home.
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
Lead technical design decisions and mentor other engineers

What you’ll bring

All qualifications

Core experience

  • 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
  • Bachelor's degree from an accredited, not-for-profit, in-person college/university
Qualification wording
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
Bachelor's degree required from an accredited, not-for-profit, in-person college/university
Education & alternatives
Basic Qualifications: * Bachelor's degree required from an accredited, not-for-profit, in-person college/university * A track record of commitment to prior employers.
Apply at CoStar

Posting record

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Open 5 monthsWe first saw this posting 151 days ago and it is still up. Roles open this long are often slow to fill or kept open to collect applications.

Status in our records
Live
First seen by us
Jun 6, 2026151 days ago
Recorded sightings
385
Last seen by us
Nov 4, 2026

These dates show when we found the posting. Check the employer’s website to confirm it is still accepting applications.

How this job compares

Pay

In line with similar jobs

$124K–$190K against $127K–$190K, the middle half of what similar US postings state.

From 2,133 postings in the last year. Stated ranges, not salaries paid.

Time since we first saw it

Day 151

Up longer than most. Similar jobs usually come down between day 6 and day 54.

From 10,782 similar postings that came down. Coming down is not always a hire.

CoStar is hiring

25 open jobs

Open jobs by the week we first saw them, last 12 weeks.

  • Data Engineer hiring has slowed
  • Takes jobs down at a usual pace
Hiring record

See how this role fits your experience

Add your resume and we’ll mark which of these tools you already use, and point out anything in the posting that could rule you out.

  • C#
  • SQL
  • AWS
  • Databricks
  • Kafka
  • Spark
Where the posting names them
* 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
Preferred Qualifications: * Expertise with Databricks / Apache Spark, C# / .NET, and SQL/database design * Experience with AI/ML data pipelines
* Experience building and scaling large data systems * Experience with AWS-based data platforms and services Preferred Qualifications:
* 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
* 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

Your next step

Complete your application on costar.eightfold.ai. The employer’s form will show what is required.

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Already applied? Track this application

Has CoStar posted this job before?

Yes. We’ve followed one other Senior Data Engineer job there since August 2026. It is still up.

  1. This jobUp 151 days so far, first seen Jun 6
  2. RichmondStill up after 75 days, first seen Aug 21

About the role

We file this job under Data Engineer, by the work the posting describes.

Data engineers build and run the pipelines that copy data out of apps and outside services into a warehouse or lake, and fix them when a source changes or a load fails.

Expect SQL, Python, a cloud platform, a scheduler such as Airflow, and often tools for large data such as Spark or Kafka.

An analytics engineer works one step later, turning the raw data a data engineer lands into clean tables people can query.

US government figures for database architects

Median yearly pay, May 2025
$139,500
Expected change, 2025 to 2035
9.4% more jobsagainst 3.5% for all jobs

The government has no code for data engineers, so these figures are for the closest group, database architects, which includes data integration and data warehousing specialists.

Source: US Bureau of Labor Statistics, Occupational Employment and Wage Statistics (May 2025) and Employment Projections (2025 to 2035). Occupation code 15-1243.

Job description

View original posting ↗

Senior Data Engineer
Job Description
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, 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. Role Description: We are seeking a Senior Data Engineer to design and deliver scalable data platforms that power high-volume, data-driven applications. This role focuses on building reliable data pipelines, enabling analytics at scale, and leveraging modern AI-assisted coding tools (e.g., Claude Code) to improve engineering efficiency and quality. This position is located in San Diego, CA and has the work schedule of 4 days onsite and 1 day work from home. 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 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 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 from $124,000 to $190,000 a year, determined by relevant skills and experience, and a generous benefits plan. #LI-CG1 #CoStar
CoStar Group is an Equal Employment Opportunity Employer; we maintain a drug-free workplace and perform pre-employment substance abuse testing
Source details

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Source excerpts

Selected passages from the saved posting. Check the full description for conditions and exceptions.

Pay
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 from $124,000 to $190,000 a year, determined by relevant skills and experience, and a generous benefits plan. #LI-CG1
Location & working pattern

San Diego, CA, US

* 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
More source context
* 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 from $124,000 to $190,000 a year, determined by relevant skills and experience, and a generous benefits plan.
Work authorization
* 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 from $124,000 to $190,000 a year, determined by relevant skills and experience, and a generous benefits plan.

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