Senior MarTech Platform Engineer
At a glance
Senior Platform & Infrastructure role at CoStar Group. Sydney (AU) - Pitt St · full-time.
Pay not stated Platform Engineer salary
devopsroles summary, based on the employer's posting.
What you'll do
- Connect the marketing technology stack through integrations, APIs, services and event-driven solutions
- Build out customer data platform features and keep customer information moving reliably across the business
- Support segmentation, tailored experiences and lifecycle marketing with usable customer data
- Shape platform design and engineering practices, while improving automation, scale and reliability
What you bring
- Hands-on experience with marketing technology platforms and customer data solutions, such as CDPs or Tealium
- Strong software engineering and integration experience, including API development and cloud services
- Experience with C#/.NET, TypeScript or Java, plus event-driven design and modern engineering practices
Who this fits
This suits a senior, hands-on engineering role involving platform implementation and collaboration with Marketing, Product, Data and Engineering. You'll need to work comfortably with both technical and non-technical stakeholders and balance business priorities with technical solutions.
From the employer
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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
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