Senior Data Engineer

Job Description
Company 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.

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.

About Domain
Domain is a leading property technology and services marketplace that is home to one of the largest portfolios of property brands in Australia, including the Domain, Allhomes and Commercial Real Estate (CRE) platforms. In 2025, Domain became part of CoStar Group (NASDAQ: CSGP), a global leader in commercial real estate information, analytics, online marketplaces and 3D digital twin technology. Together, Domain and CoStar Group is dedicated to digitising the world's real estate, empowering all people to discover properties, insights, and connections that improve their businesses and lives.

What Success Looks Like

• Deliver high-quality, reliable data assets that form the foundation for analytics and business decisions.
• Transform complex, noisy data into well-structured, usable data products that unlock value.
• Build strong relationships with stakeholders, ensuring data solutions solve real business problems.
• Adapt quickly to evolving business needs, prioritising initiatives where data can make the greatest impact.
• Balance speed and long-term sustainability by making pragmatic technical decisions.
• Translate raw data into meaningful insights, combining technical expertise with business context and consumer understanding.
• Foster a culture of data quality, technical excellence, and continuous improvement.

What You'll Bring

• 5+ years of experience in data engineering, including data modelling, building and maintaining data pipelines, ETL processes, and data integration solutions.
• Expertise with AWS and Snowflake; strong knowledge of data warehousing and architecture.
• Experience with dbt, Apache Airflow (or similar), and advanced SQL skills.
• Skilled in version control, testing, CI/CD, Docker, GitHub Actions, and related development practices.
• Strong problem-solving abilities, experience in data cleaning, optimisation, and observability frameworks/tools (e.g., Great Expectations, Elementary).
• Proficiency in programming languages like Python, Java, or Scala. Familiarity with big data technologies (Hadoop, Spark), cloud platforms, and relational databases (SQL Server, PostgreSQL).
• Ability to communicate complex technical concepts to non-technical stakeholders.
• Data visualisation experience, familiar with tools like Tableau or Streamlit.
• Minimum Bachelor Degree qualified

Nice to have

• Knowledge of linear algebra, probability, statistics, calculus, and optimisation.
• Experience with machine learning pipelines and MLOps.
• Exposure to real-time data processing and streaming technologies.

Why join us?
Role
We're the kind of place you can make a real impact, with a workplace culture where you can be you. It's a fun, safe space where you'll always feel you belong. Perks of the role include:

• Flexible hybrid working
• First-rate parental leave
• Access to Perkbox, giving you discounts across healthcare, entertainment, food, utilities and more;
• Continuous opportunities to leap, learn and grow in a team that values creativity and innovation;

We don't just talk, we do. Every day we solve property problems for Australians and beyond. We encourage our people to see the possibilities, and turn them into realities.

What's next?
We'll give your application the thoughtful attention it deserves and get back to you as soon as possible. If there's a match, one of our recruitment consultants will reach out so keep your phone handy We're genuinely excited about the chance to work together and make a meaningful impact.

Equity, Diversity and Inclusion at Domain
Domain is enthusiastically and unapologetically committed to fostering an equitable, inclusive work culture which reflects our customers and communities. We are proactively looking for candidates from all lived experiences, including people with disability, and people of all ages, ethnicities, cultures (including Aboriginal and Torres Strait Islander Peoples), faiths, sexual orientations, and gender identities (including trans and non-binary people).

We are committed to providing an equitable recruitment process for people with disability. If you require adjustments during the process we're here to support. If you wish to receive this job advertisement in an accessible format, or have a confidential chat about workplace adjustments, please contact our Equity, Diversity and Inclusion team at or leave a message on and we will get back to you.

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