At a Glance
- Tasks: Build AI-powered tools and automations that transform how we operate.
- Company: Join Domain, a leading property tech company under CoStar Group.
- Benefits: Enjoy competitive pay, extra leave, and professional development perks.
- Other info: Diverse and inclusive culture with excellent career growth opportunities.
- Why this job: Tackle high-impact engineering challenges and shape the future of AI-driven solutions.
- Qualifications: Strong experience with C#, .NET, TypeScript, and scalable systems.
The predicted salary is between 123750 - 151250 $ per year.
Senior Engineer - Business Technology
Job Description
Build AI-powered tools and automations that are transforming how Domain operates.
We're looking for a Senior Software Engineer to join our Integration & Automation Squad, where you'll develop the platforms, integrations and intelligent automation capabilities that power our products and internal systems.
Working with C#, .
NET and Type Script, you'll help create scalable, event-driven solutions that connect systems, unlock data and enable AI-driven experiences across the business.
What You'll Do
- Build AI-powered tools, automations and platform capabilities used across Domain.
- Design, develop and support scalable software solutions from concept through to production.
- Create real-time integrations using APIs, messaging and event-driven architecture.
- Build and maintain cloud-native microservices and distributed systems.
- Solve complex technical challenges across a large and evolving technology landscape.
- Collaborate closely with Product, Design and Engineering teams to deliver customer value.
- Drive code quality, security, performance and engineering best practices.
- Mentor engineers and contribute to a culture of continuous improvement.
- Influence architecture, technical standards and long-term platform strategy.
- Ideally You'll Have
- Strong commercial experience with C#, . NET and Type Script.
- Experience building scalable APIs, integrations and distributed systems.
- Expertise with microservices and event-driven architectures.
- Experience with AWS, Azure or GCP.
- A strong understanding of cloud-native design patterns and software architecture.
- Experience designing solutions for scale, reliability and maintainability.
- Knowledge of modern testing practices including TDD, BDD and shift-left testing.
- A security-first mindset and experience with secure coding practices.
- Experience working in Agile, cross-functional product teams.
- Previous experience mentoring engineers and helping teams grow.
Why Join Us?
This is an opportunity to work on high-impact engineering challenges while building AI-powered tools and intelligent automations that are used across Domain's platforms and business operations.
You'll join a collaborative team, work on modern cloud technologies, and have the opportunity to influence both the technical direction of the platform and the future of AI-enabled products within the business.
If you enjoy solving complex integration challenges, building scalable systems and creating AI-driven solutions that have real-world impact, we'd love to hear from you.
What’s in it for you
Working at Co Star Group means you'll enjoy a culture of collaboration and innovation that attracts the best and brightest across a broad range of disciplines.
We offer you generous compensation and performance-based incentives.
As well as having an outstanding working environment, other perks include extra days of annual leave, leadership development programs, Linked In Learning, Perkbox discounts and much more!
At Co Star, we recognise the positive value of diversity and promote equality.
We aim at all times to recruit the person who is most suited to the job and welcome applications from people of all backgrounds including but not limited to; people of all genders, of all ages, sexual orientations, ethnicities, nationalities, religions andbeliefs.
About Domain (part of the Co Star 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 Co Star 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.
Equity, Diversity & Inclusion
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.
Co Star Group is an Equal Employment Opportunity Employer; we maintain a drug-free workplace and perform pre-employment substance abuse testing
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Senior Engineer in Sydney employer: CoStar Group
At Domain, we pride ourselves on fostering a collaborative and growth-oriented work environment where innovation thrives. As a Frontend Engineering Team Lead, you'll not only have the opportunity to mentor talented engineers but also engage in meaningful projects that impact millions of Australians. With strong reward programs and a commitment to ongoing learning, Domain is an excellent employer for those seeking to make a difference in the tech landscape.
