Senior MarTech Platform Engineer

Senior MarTech Platform Engineer
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Job Description
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Senior MarTech Platform Engineer
About the Role
At Domain (part of the CoStar Group), we're looking for a Senior MarTech Platform Engineer to help build and evolve the technology that powers our customer engagement and marketing capabilities.
Working across Marketing, Product, Data, and Engineering, you'll design and support integrations, customer data solutions, and marketing platforms that enable personalised customer experiences at scale.
This is a hands-on engineering role focused on platform implementation, system integration, automation, and customer data enablement.
What You'll Do
Build and support integrations across Domain's MarTech ecosystem.
Implement and enhance Customer Data Platform (CDP) capabilities.
Develop APIs, services, and event-driven solutions that connect customer, marketing, and data platforms.
Enable reliable customer data flows across the business.
Support audience segmentation, personalisation, and lifecycle marketing initiatives.
Partner with Marketing, Product, Data, and Engineering teams to deliver business outcomes.
Contribute to platform architecture, technical design, and engineering best practices.
Identify opportunities to improve automation, scalability, and reliability.
What You'll Bring
MarTech Experience
Experience working with MarTech platforms and customer data solutions, including exposure to technologies such as:
Customer Data Platforms (CDPs)
Tealium
Braze
GA4
Mixpanel
Snowflake
Marketing Automation and Lifecycle Marketing platforms
Technical Experience
Strong software engineering and integration experience, including:
C#/.NET, TypeScript, or Java
API development and system integrations
Cloud platforms and services
Event-driven architectures
Data and platform integration projects
Modern software engineering practices
About You
Strong problem-solving and analytical skills.
Comfortable working with both technical and non-technical stakeholders.
Able to balance business needs with technical solutions.
Ownership mindset with a focus on outcomes.
Collaborative, adaptable, and eager to learn.
Passionate about building scalable technology that delivers great customer experiences.
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
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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