At a Glance
- Tasks: Develop and enhance software solutions for a leading property marketplace using C# and .NET.
- Company: Join Domain, part of CoStar Group, a top property tech company in Australia.
- Benefits: Enjoy competitive pay, extra leave, learning opportunities, and discounts.
- Other info: Diverse and inclusive workplace with great career growth potential.
- Why this job: Make a real impact on customer experiences and tackle exciting technical challenges.
- Qualifications: Experience with C#, .NET, and a passion for collaborative problem-solving.
The predicted salary is between 112968 - 138072 $ per year.
Software Engineer - Trade Platform
Job Description
Build solutions that power a leading property marketplace We're looking for a Software Engineer to join our Trade Platform Team, where you'll help develop and support the systems that power customer subscriptions, billing, product entitlements, and agency integrations across Domain.
Working primarily with C# and .
NET, you'll contribute to business-critical platforms that manage customer billing and usage charges, subscription tiers, premium listing experiences, and agency booking services.
Your work will directly impact how customers interact with our products and how listings are promoted across the platform.
What You'll Do
- Develop, enhance, and maintain software solutions using C# and . NET.
- Support systems responsible for customer billing, usage charging, and subscription management.
- Build functionality that enables premium product features, including listing prioritisation, promotional placements, and customer entitlements.
- Maintain and improve agency booking APIs and integrations.
- Design, develop and support scalable applications from concept through to production.
- Collaborate with Product, Engineering and business stakeholders to deliver customer value.
- Troubleshoot, diagnose and resolve production issues across critical systems.
- Contribute to code quality, testing, security and engineering best practices.
- Participate in a shared on-call roster supporting business-critical applications.
- Continuously improve platform performance, reliability and scalability.
- Ideally You’ll Have
- Commercial experience developing applications with C# and . NET.
- Experience building and consuming RESTful APIs and integrations.
- Strong understanding of software engineering fundamentals and design principles.
- Experience working with SQL databases and distributed systems.
- Knowledge of cloud platforms such as AWS, Azure or GCP.
- Experience delivering solutions that are scalable, reliable and maintainable.
- A collaborative mindset and ability to work effectively within Agile teams.
- Strong problem-solving and troubleshooting skills.
- A passion for continuous learning and improving engineering practices.
Why Join Us?
- Work on platforms that directly impact customers and revenue.
- Be part of a collaborative team with experienced engineers who enjoy sharing knowledge.
- Tackle complex technical challenges at scale.
- Contribute to products used by thousands of customers every day.
- Enjoy opportunities to learn, grow and develop your technical expertise.
- 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.
- 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 and beliefs.
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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Software Engineer in Sydney employer: costar
At Domain, we pride ourselves on being an exceptional employer, offering a dynamic work environment that fosters creativity and collaboration. As a Digital Performance Specialist, you'll benefit from our commitment to employee growth through ongoing training and development opportunities, while enjoying a culture that values diversity and inclusion. Located in the heart of Australia's property technology landscape, you'll be part of a team that is dedicated to driving innovation and making a meaningful impact in the industry.
