Senior Data Engineer

Senior Data Engineer

Job Description

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.

Our team is responsible for the development of CoStar's recommendation systems, personalization features, and user behavior analytics across our consumer marketplaces, including Homes.com, Apartments.com, and LoopNet. These systems help users discover relevant properties, understand market trends, and engage more deeply with our products.

We are searching for an experienced Senior Data Engineer to design and deliver scalable data systems that drive personalized experiences and user analytics across our marketplaces. In this role, you'll partner with our Machine Learning team, building the data foundations that power recommendation engines, personalization models, and future AI-driven innovations across our high-traffic consumer marketplaces.

This is a unique opportunity to work at the intersection of large-scale data engineering and applied machine learning, shaping the systems behind personalized experiences for millions of users.

This position is located in San Diego (UTC Area) and is in office Monday through Thursday with work from home on Friday.

RESPONSIBILITIES:

• Design, build, test, and deploy scalable, reusable, and maintainable data platforms capable of processing large volumes of data
• Take full ownership of deliverables, from development and testing through deployment and ongoing production support
• Collaborate with machine learning engineers to design data pipelines and infrastructure that support model training, deployment, and real-time inference at scale.
• Work closely with engineering peers, product owners, designers, and leadership to deliver impactful solutions
• Serve as a trusted contributor in technical architecture, design decisions, and code reviews
• Champion continuous improvement, driving both technical and non-technical enhancements within the team
• Explore emerging technologies, tools, and best practices to keep solutions innovative and efficient
• Develop a deep understanding of CoStar's business and products, ensuring alignment with strategic goals

BASIC QUALIFICATIONS:

• Bachelor's degree required from an accredited, not-for-profit, in-person college/university
• A track record of commitment to prior employers
• 7+ years of hands-on experience in software development, delivering high-quality solutions
• Expertise in Data Engineering, with strong proficiency in Python, PySpark, and SQL
• Solid foundation in Object-Oriented Programming principles and best practices
• Demonstrated success in building and launching data-driven products operating at terabyte scale
• Ability to translate technical requirements into robust architectures, data models, and ETL strategies
• Practical experience with cloud-based databases, including both relational and non-relational systems

PREFERRED QUALIFICATIONS:

• Hands-on experience or familiarity with big data platforms such as Databricks or Snowflake
• Proficiency with cloud platforms, including AWS or Azure
• Experience working with NoSQL databases (e.g., DynamoDB) and object storage systems (e.g., Amazon S3)
• Practical knowledge of event streaming technologies, especially Kafka
• Strong analytical and problem-solving skills, with the ability to tackle complex technical challenges
• Experience leveraging AWS compute and container services for scalable solutions

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

This position offers a base salary range of $146,900 - $190,000 based on relevant skills and experience and includes a generous benefits plan.

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.

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

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