Senior Software Engineer

About CoStar Group

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 35 years, giving us the perspective to create truly unique and valuable offerings to our customers. We've continually refined, transformed, and perfected our approach to our business, creating a language that has become standard in our industry, for our customers, and even our competitors. We continue that effort today and are always working to improve and drive innovation. 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.

About Domain

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.

Join the Homepass Squad and step into a strategic full stack engineering role dedicated to perfecting the property inspection and open home experience for agents and their customers. This is your chance to contribute at all levels to the development of a critical product within our Agent-facing workflow and SaaS portfolio, directly supporting our Domain Strategy.

You'll move beyond mere code contribution to architecting robust, scalable solutions and championing engineering best practices. Leveraging your expertise in React Native, TypeScript, and , you will not only build and operate the Homepass product but also mentor junior team members, drive initiatives to reduce manual toil (TOIL), and collaborate with cross-functional teams to ensure our solutions deliver maximum customer value. This position offers the scope to innovate with emerging technologies and significantly impact the efficiency and professionalism of thousands of agents.

What Success Looks Like

• Architectural Excellence: Architecting solutions and building high-quality, scalable, reliable, and performant solutions in collaboration with the team.
• Engineering Leadership: Actively mentoring junior engineers in solution design, building high-quality solutions, and fostering a culture of continuous improvement.
• Efficiency Champion: Driving strategic initiatives to improve development workflow, reduce TOIL, and champion engineering efficiency for the team and services.
• Best Practices: Championing and adopting Engineering best practices and contributing to cross-domain technology forums.
• System Health: Proactively contributing to the System Health and Tech debt backlog and continuously improving software quality to reduce incidents over time.
• Operational Readiness: Being an effective on-call responder and maintaining/patching systems as required.

Preferred skills and qualifications:

• Bachelor's degree or equivalent.
• Experience with React Native (highly valued), TypeScript, Javascript, , , and
• Highly regarded experience with MongoDB and familiar with Document and Relational data persistence models.
• Experience designing scalable software solutions for either highly trafficked customer-facing websites or complex mobile apps.
• Experience working with common Cloud Platforms (e.g., AWS, Azure, GCP) and experience with distributed applications in the cloud.
• Experience working with Tech leads to optimise engineering practices, implementing DevOps practices and CI/CD, and working in Agile environments.
• Experience mentoring more junior engineers and working effectively within cross-functional teams (Product, Design, Tech).

Why join us?

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 of the role include:

• Hybrid working;
• First-rate parental leave;
• Continuous opportunities to leap, learn and grow in a team that values creativity and innovation;

We don't just talk, we do. Every day we solve property problems for Australians and beyond. We encourage our people to see the possibilities, and turn them into realities.

What's next?
We'll give your application the thoughtful attention it deserves and get back to you as soon as possible. If there's a match, one of our recruitment consultants will reach out so keep your phone handy We're genuinely excited about the chance to work together and make a meaningful impact.

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 looking for 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.