Senior Engineer - Business Technology

Visual Lease; Sydney; On-site; AUD 150,000 - 190,000; Full time

Benefits offered by this job

Extra days of annual leave

Leadership development programs

LinkedIn Learning

Perkbox discounts

Job summary

Domain is seeking a Senior Software Engineer to join the Integration & Automation Squad, building AI-powered tools and scalable integrations across its platforms. You will work with C#, .NET and TypeScript to deliver real-time solutions, APIs and event-driven architectures that unlock data and drive AI-enabled experiences.

You will mentor engineers, influence architecture, and collaborate with Product, Design and Engineering teams to deliver customer value within a modern cloud environment.

Qualifications

• Strong experience with C#, .NET and TypeScript.
• Experience building scalable APIs and distributed systems.
• Expertise in microservices and event-driven architectures.
• Experience with cloud providers (AWS, Azure or GCP).
• Knowledge of cloud-native design patterns and software architecture.
• Experience designing solutions for scale, reliability and maintainability.
• Familiarity with modern testing practices (TDD, BDD and shift-left).
• Security-first mindset and secure coding practices.
• Experience in Agile, cross-functional product teams.
• Mentoring engineers and helping teams grow.

Responsibilities

• 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.

Skills

C#

.NET

TypeScript

APIs

Distributed systems

Microservices

Cloud platforms

Security practices

Agile

Mentoring

Tools

AWS

Azure

GCP

Job description

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 TypeScript, 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 TypeScript.
• 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 CoStar 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, LinkedIn Learning, Perkbox discounts and much more!

At CoStar, 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 CoStar 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 CoStar 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 [e-mail] or leave a message on 1300 858 356 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