Principal AI/ML Specialist

Principal AI/ML Specialist. Company: CoStar Group (NASDAQ: CSGP) is a leading global provider of commercial and residential real estate information, analytics, and online marketplaces. CoStar is on the S&P 500 Index and the NASDAQ 100, with a mission to digitize the world's real estate, empowering people to discover properties, insights and connections that improve their businesses and lives. This description combines Domain and CoStar Group context: Domain is a leading property technology and services marketplace now part of CoStar Group, dedicated to making the property journey easier, more transparent, and more intelligent with AI/ML central to delivering on that promise.

What makes this role unique: You'll lead by influence, not hierarchy — setting direction, mentoring others, and driving strategic projects that matter. You'll work directly on initiatives that shape how millions of users discover and engage with Domain, starting with our SEO platform and extending across the business. You won't just prototype — you'll ship. That means ownership of everything from opportunity scoping through to robust, scalable deployment. You'll work with one of the best data stacks in the country — and you'll have the autonomy to push the boundaries of what AI can do in our space.

• Identifying high-impact opportunities to apply AI and machine learning to real business problems — and backing them with clear ROI and technical feasibility.
• Owning projects end-to-end: from concept, design, and stakeholder engagement through to build, testing, and deployment.
• Leading development of scalable AI/ML systems — including MLOps infrastructure that keeps things running smoothly and cost-effectively in production.
• Pioneering the use of LLMs and GenAI across our products — designing secure, useful, and reliable applications of these technologies.
• Acting as a force multiplier for the business by mentoring others, running workshops, and helping to embed AI/ML thinking across teams.

• Expertise in production-grade AI/ML systems — designed and deployed models at scale in the cloud, with performance, cost and safety in mind.
• Deep experience with modern MLOps — including CI/CD, monitoring, and model lifecycle management.
• Hands-on with GenAI/LLMs — from prompt engineering and RAG pipelines to orchestration frameworks like LangGraph or LangChain.
• Strong data foundations — fluent in Python, SQL, and cloud data platforms like AWS and Snowflake.
• Business-first mindset — ability to translate technical work into real commercial outcomes and clearly communicate value to stakeholders.

• Familiarity with SEO and how AI can supercharge search visibility is a strong plus.

We're the kind of place you can make a real impact, with a workplace culture where you can be you. It's a fun, safe space where you'll always feel you belong. Perks include flexible hybrid working, first-rate parental leave, and continuous opportunities to learn and grow in a team that values creativity and innovation. We don't just talk, we do — solving property problems for Australians and beyond, turning possibilities into realities.

Domain and CoStar Group are committed to fostering an equitable, inclusive work culture reflecting our customers and communities. We actively seek 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. If you require adjustments during the process, we are 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 edi@domain.com.au or leave a message on 1300 858 356.

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 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 37 years, giving us the perspective to create truly unique and valuable products and services. We've continually refined, transformed and perfected our approach, 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 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 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 are unable or limited in your ability to use or access costargroup.com/careers as a result of your disability. You can request reasonable accommodations by calling 1-855-840-1715 or by sending an email to recruiting@costargroup.com.