Senior Data Engineer

Senior Data Engineer – Domain – Sydney 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. By equipping the brightest minds with the best resources, we provide an invaluable edge in real estate. About Domain Domain is a leading property marketplace reaching 7 million Australians each month, making it one of the country’s most recognised and trusted property platforms. Domain operates the Allhomes and CRE “commercial real estate” platforms and provides product and solutions to consumers, agents, government and enterprise to digitise every step of the property journey. About the Role Are you passionate about designing and implementing robust, scalable data solutions in a dynamic environment with evolving products and opportunities? We’re seeking an innovative Senior Data Engineer to join our data department. Your work will create reusable data assets that empower every department to rapidly extract insights and deliver results. Develop scalable data ingestion pipelines for property data assets, establishing them as the authoritative source for all property‑related decisions and lifecycle journeys across various products and business units within the Domain Group ecosystem. In a typical day you can expect to collaborate across all areas of our organization to lead the design and architecture of innovative data solutions that enhance every aspect of our property ecosystem. Responsibilities Design, architecture and end‑to‑end implementation of complex, high‑performance, scalable data pipelines and data infrastructure solutions. Design and implement effective data models and architect components of data warehousing and data lake/lakehouse solutions to meet evolving business needs. Establish and implement comprehensive data quality frameworks and contribute to data governance practices from an engineering perspective. Optimize the performance, reliability, and cost‑effectiveness of data storage, retrieval, and processing systems at scale. Provide technical leadership, mentorship and guidance to junior and mid‑level Data Engineers on advanced techniques, design patterns and problem‑solving. Identify opportunities and implement solutions to automate data engineering processes and improve tooling for increased efficiency and reliability. Collaborate effectively with data architects, platform engineers and data consumers to define technical requirements and integrate robust data solutions. Qualifications 4+ years of proven experience as a Senior Data Engineer in commercial/business environments. Expert‑level proficiency in SQL with deep understanding of advanced data modeling, query optimisation and data warehousing concepts. Hands‑on experience architecting, building and optimizing advanced data solutions on a modern cloud data platform (Snowflake or BigQuery is a must). Mastery in designing and implementing complex data orchestration frameworks and transformation pipelines using tools like Apache Airflow and DBT. Extensive programming experience in Python for building robust, scalable data applications and automation. Experience designing and managing data solutions on a major cloud platform (AWS preferred; GCP/Azure valued). Proficiency with version control systems (Git) and CI/CD practices for data engineering. Excellent communication and technical leadership skills, with a proven ability to mentor other engineers and collaborate with cross‑functional teams. Nice to Haves Knowledge of the real‑estate industry and its data challenges. Experience with streaming data frameworks and real‑time data processing. Understanding of Infrastructure as Code (IaC) principles and experience with tools like CDK, CloudFormation or Terraform. Familiarity with various ETL tools and services (e.g., SSIS, Fivetran, Stitch, Talend, Airbyte, Matillion). Strong problem‑solving skills and ability to optimise data infrastructure for performance and scalability. Excellent communication skills and ability to collaborate with cross‑functional teams. AI hands‑on experience for automation workflow. Why Join Us Flexible hybrid working. Mentoring and leadership programs with access to Learning & Development tools. First‑rate parental leave and support for working parents. Regular social events including our famous Innovation Days. 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. Diversity & Inclusion We are devoted to fostering a diverse and supportive work environment and warmly welcome applications from Aboriginal and Torres Strait Islander peoples. If you have any accessibility needs or require accommodations during the application process, please let us know and we will ensure you receive the support you need. We are committed to providing an equitable recruitment process for people with disability and are proactively looking for candidates from all lived experiences, including 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). Equal Opportunity CoStar Group is an Equal Employment Opportunity Employer; we maintain a drug‑free workplace and perform pre‑employment substance abuse testing. #J-18808-Ljbffr