Senior Data Engineer - Product

costar; Sydney; On-site; AUD 180,000 - 240,000; Full time

Benefits offered by this job

Extra days of annual leave

LinkedIn Learning

Perkbox discounts

Job summary

Domain is seeking a Senior Data Engineer to design and operate a data platform across Lakehouse architectures, serving data products, data science, and analytics teams. You will build scalable batch and streaming pipelines on AWS, Snowflake and Databricks, while ensuring data quality and governance across the Domain Group.

You'll collaborate with data scientists, product managers and engineers to deliver data solutions that drive business value, improve processes and reduce costs in a

Qualifications

• 5+ years of hands-on data/software engineering.
• 4+ years of SQL and Python development.
• Experience with data integration/orchestration tools (Airflow, DBT, AWS Glue).
• Experience with Snowflake, Databricks and Lakehouse architectures on AWS.
• Strong data modelling skills in an agile environment.

Responsibilities

• Design and build reusable, scalable data solutions on a Lakehouse platform.
• Develop robust pipelines with Airflow, DBT, Snowflake, Databricks and AWS.
• Build real-time pipelines using Kafka and Flink for low-latency use cases.
• Architect data solutions on AWS and manage cost-efficient data warehousing.
• Model data and ensure quality, governance, and cross-functional collaboration.
• Identify opportunities to improve data processes and reliability.

Skills

SQL

Python

Data modelling

Streaming data

Cloud architecture

Education

Bachelor's degree in computer science, engineering, mathematics or related field

Tools

Apache Airflow

DBT

AWS Glue

Snowflake

Databricks

Apache Kafka

Apache Flink

CDK

CloudFormation

Terraform

Job description

Senior Data Engineer - Product

Job Description

Exciting opportunity for a Senior Data Engineer to join Domain - CoStar in a period of great opportunity and growth. You will have a direct impact on the continued success of Domain-CoStar in the APAC region. Leveraging the largest reality data sets in the local market, to enhance Domain-CoStar's product service offering and refine internal business practices.

The purpose of this role is to build data platform capabilities for batch and streaming pipelines on our Lakehouse and develop data assets that serve as the source and authority for data-driven decisions and analytics used across the business. You will design, develop and operate a data platform and data pipelines which serve Domain's products and internal data teams like data product, data science, data analytics and ML/AI.

What you'll do

• Solution Design: Design and build re-usable, scalable data solutions and assets on a modern Lakehouse platform across a constantly evolving landscape of products and internal data teams.
• Pipeline Development: Build and maintain robust, reliable pipelines using DBT, Apache Airflow, Snowflake, Databricks and AWS services.
• Streaming & Real-Time: Develop real-time data pipelines using Apache Kafka and Apache Flink to support low-latency, event-driven use cases.
• Data Integration: Connect to a wide variety of internal and external sources via multiple methods (SaaS solutions, APIs, direct connections, streaming) on cloud architecture.
• Cloud Data Architecture: Architect and implement data solutions on AWS, Snowflake and Databricks, applying best practices for cloud-native data warehousing and cost-efficiency.
• Lakehouse Architecture: Build and optimise open Lakehouse table formats such as Apache Iceberg, managing schema evolution, partitioning, and performance.
• Modern Data Modelling: Apply modern data modelling practices that evolve with the business in an agile environment.
• Performance & Cost: Write and optimise complex SQL and Spark workloads to keep solutions efficient in both time and cost.
• Data quality and governance
• Cross-functional Partnership: Work closely with data scientists, analysts, product managers, and engineers across the Domain Group to deliver data solutions that drive business value.
• Continuous Improvement: Challenge the status quo - proactively identify opportunities to improve data processes, reduce costs, and increase reliability.

Essential

• At least 5+ years of hands-on commercial experience in software or data engineering.
• 4+ years of strong development experience in SQL and Python.
• Proven experience with data integration and orchestration tools, including Apache Airflow, DBT, and AWS Glue.
• Expert on some of the modern cloud data platforms and architectures, such as Snowflake, Databricks, and Lakehouse architecture
• Experience designing and building data solutions on AWS cloud infrastructure.
• Experience working with semi-structured and unstructured data.
• Strong data modelling skills with the ability to evolve models in an agile environment.
• Hands-on experience building streaming and real-time pipelines with Apache Kafka and Apache Flink.
• Knowledge of infrastructure-as-code tools such as CDK, CloudFormation, or Terraform.
• Degree in computer science, engineering, mathematics, statistics, or a related technical field

What's In It For You?

Working at CoStar Group means you'll enjoy a culture of collaboration and innovation that attracts the best and brightest across a broad range of disciplines. We offer you generous compensation and performance-based incentives. As well as having an outstanding working environment, other perks include extra days of annual leave, leadership development programs, LinkedIn Learning, Perkbox discounts and much more!

At CoStar, we recognise the positive value of diversity and promote equality. We aim at all times to recruit the person who is most suited to the job and welcome applications from people of all backgrounds including but not limited to; people of all genders, of all ages, sexual orientations, ethnicities, nationalities, religions and beliefs.

About Domain (part of the CoStar Group)

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 - a global leader in commercial real estate information, analytics, online marketplaces and 3D digital twin technology. We are dedicated to digitising the world's real estate, empowering all people to discover properties, insights, and connections that improve their businesses and lives.

Equity, Diversity & Inclusion

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