Martech Manager

Job Description

The Marketing & Advertising Technology Manager is responsible for maximising the value of Domain's MarTech and AdTech ecosystem by connecting audience data, activation workflows and platform operations across Marketing, Product and Technology teams. This hands‑on role focuses on improving how first‑party data is collected, governed, activated and measured to support personalisation, customer engagement, retention and campaign performance. Working across commercial, marketing and technical stakeholders, you will drive audience strategy, optimise platform operations and enable teams to create, activate and measure customer audiences more effectively across channels.

Responsibilities

Audience Strategy, Governance & Enablement Summary Lead audience strategy and enablement across Domain’s marketing and advertising technology ecosystem, helping teams create, activate and measure customer audiences more effectively. You will act as a key partner to Lifecycle, Digital, Product and Technology teams, translating audience opportunities into explicit activation, tracking and measurement plans. The role is responsible for driving best‑practice audience operations, ensuring data governance, privacy compliance and consent requirements are met, while maintaining robust documentation, scalable processes and operational standards that improve audience performance and marketing effectiveness.

Audience Activation & Platform Operations

Summary Drive the activation and optimisation of customer audiences across Domain’s marketing and advertising technology ecosystem. Working closely with MarTech, Digital, Lifecycle Marketing and Ad Operations teams, you will leverage first‑party data, customer data platforms and audience segmentation to improve advertising performance and customer engagement. You will build and activate high‑value audience segments, optimise audience delivery and match rates across platforms, and identify new opportunities to enhance targeting, measurement and activation through behavioural insights and data‑driven strategies.

Ad Technology, Tracking & Integration

Summary Lead the operational management and optimisation of Domain’s advertising technology ecosystem, ensuring customer data, audience platforms and advertising channels work seamlessly together. You will oversee tracking, measurement and platform integrations across customer data platforms, marketing technologies and advertising partners, supporting privacy‑conscious data collection and activation. Working closely with Product, Technology and Marketing teams, you will maintain platform health, troubleshoot technical issues, improve audience delivery and provide reporting that enables more effective advertising performance and customer engagement.

About You Essentials





5‑8 years' experience in ad technology, digital campaign operations, audience strategy, marketing technology, data activation or a related digital platforms role.

Hands‑on experience with at least one core platform area, such as Google Ad Manager, Google Tag Manager, advertising platforms, and Customer Data Platforms (like Tealium).

Strong understanding of digital advertising operations, audience segmentation, first‑party data activation, campaign tracking and measurement principles.

Strong attention to detail with the ability to test, validate and troubleshoot audience setup, tracking, tags, campaign delivery and platform integrations.

Bring structure to ambiguous problems and document requirements clearly.

Comfortable working with audience data, reporting outputs and platform diagnostics to identify opportunities, validate setup and explain performance outcomes.

Bachelor's degree in Marketing, Digital Media, Business, Data, Technology or a related field, or equivalent practical experience.

Preferred Experience in Real Estate, Tech, Media, Advertising, Marketplace or Software industries.

Experience with Tealium, Google Ad Manager, Google Tag Manager, Meta Business Manager, Google Ads, Google Analytics or similar platforms.

Candidates will not be expected to do any coding or programming within this role but do need to be hands‑on with the platforms and willing to learn through trial and error.

Experience working with data clean rooms, second‑party data partnerships, match‑rate improvement, server‑side conversion tracking or API‑based audience integrations.

Ability to interpret technical requirements and work with Product, Technology or Data teams on data layer, tagging, API, tracking or platform integration requests.

About Domain part of 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 (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.

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 seeking 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 EEO Statement

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

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, 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 37 years, giving us the perspective to create truly unique and valuable products and services. We’ve continually refined, transformed and perfected our approach to our business, creating a language that has become standard in our industry and for our customers. 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.

CoStar Group is committed to creating a diverse environment and is proud to be an equal opportunity workplace and affirmative action employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, gender, gender identity or expression, sexual orientation, national origin, genetics, disability, age, or veteran status.

CoStar Group is also committed to compliance with all fair employment practices regarding citizenship and immigration status.

If you are a qualified individual with a disability or a disabled veteran, you may request a reasonable accommodation if you’re unable or limited in your ability to use or access www.costargroup.com/careers as a result of your disability. You can request reasonable accommodations by sending an email to .

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📌 Martech Manager (New South Wales)
🏢 Costar Group
📍 New South Wales