Senior Engineer

Job Description
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.

Joining the PriceFinder Customer UX Squad means stepping into a pivotal role where your advanced full stack expertise, specifically ReactJS, NodeJS, and TypeScript, directly shapes the tools thousands of real estate agents use every day. This is a unique opportunity to act as both a hands-on contributor and a key technical leader, responsible not just for writing and reviewing code, but for architecting robust, scalable solutions that drive our entire Domain Strategy forward.

You'll operate at the intersection of business value and technical excellence, mentoring junior engineers, spearheading initiatives to reduce manual toil (TOIL), and collaborating closely with Product Managers to ensure our Agent-facing workflow and SaaS products remain market-leading. This role is your chance to champion engineering best practices, innovate with emerging tech, and truly define the quality and efficiency of our core products.

What Success Looks Like In This Role

• Technical Excellence: Building high-quality, scalable, reliable, and performant solutions in collaboration with the team.
• Architectural Contribution: Architecting solutions that meet both current and future business needs, ensuring alignment with the overall Domain vision.
• Engineering Leadership: Actively mentoring junior engineers in solution design and building high-quality solutions, 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.
• System Health: Proactively contributing to the System Health and Tech debt backlog for owned services, and participating in cross-domain technology forums.
• Operational Readiness: Being an effective on-call responder, continuously improving software quality to reduce incidents over time, and maintaining/patching systems as required.

What We Are Looking For

• Bachelor's degree or equivalent.
• Full Stack Proficiency: Proven experience as a full-stack developer with ReactJS and NodeJS in TypeScript.
• Experience designing scalable software solutions and working with highly trafficked websites or complex mobile apps.
• Experience with Microservices architecture, relational (e.g., PostgreSQL) and non-relational databases, and Cloud Design patterns.
• Experience working with common Cloud Platforms (e.g., AWS, Azure, GCP) and implementing DevOps practices and CI/CD.
• Experience working in Agile environments, mentoring junior engineers, and collaborating within cross-functional teams (Product, Design, Tech).
• Strong proficiency in SQL (PostgreSQL preferred) and strong CSS skills with a focus on responsiveness.

Why join us?
Role
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.

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