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Senior Software Engineer


Job Location:

Sydney - Australia

Monthly Salary: Not provided by the employer
Posted: 11 July 2026 (30+ days ago)
Application Deadline: 8 October 2026
Vacancies: 1 Vacancy

Job Summary

Senior Software Engineer


Job Description


The Senior Engineer drives high-quality software development and innovation serving as a key driver of technical direction within Domains Residential Consumer web teams. This pivotal role involves architecting scalable highly performant user interfaces writing and reviewing code and ensuring all technical solutions align with the broader Domain Strategy. Leveraging deep expertise in React TypeScript and the engineer will lead the development of complex features and champion frontend quality standards to solve real customer problems and enhance our website.

The Senior Engineer plays a crucial role in mentoring and guiding more junior team members fostering a culture of continuous improvement and engineering excellence.

What youll do

  • Responsible for the entire lifecycle of medium-sized projects: engineering design development test production and deployment and subsequent fixes and improvements.
  • Finds solutions to unsolved loosely defined highly technical problems.
  • Consistently writes co-writes and reviews documentation and production-ready code that is clear concise tested and easily understood by others.
  • Quick and effective in identifying and resolving issues balancing trade-offs between speed quality and technical debt.
  • Understands the big picture and system-wide impact aligning with and contributes to domain-wide architecture security and technology standards.
  • Designs solutions with scalability and future needs in mind.
  • Optimises for performance maintainability and security actively looks for security vulnerabilities both in code and when providing code reviews.
  • Contribute to the System Health and Tech debt backlog for their respective owned service.
  • Collaborate with Lead Engineers and Tech Leads on improving process and system change.
  • Mentors and guides junior team members fostering a culture of continuous improvement and engineering excellence.

Essential:

  • Degree in Computer Science / Software Engineering or related field
  • Deep expertise in ReactJS JavaScript TypeScript and .
  • Strong understanding of modern architectural patterns includingMicro frontends Single-Page Applications (SPA) and Server-Side Rendering (SSR).
  • Familiarity in GraphQL including experience adding and modifying queries and mutations.
  • Hands-on experience leveraging AI coding assistants to improve engineering productivity and code quality.
  • Experience designing software solutions built for high scale and high traffic websites.
  • DevOps practices CI/CD and infrastructure-as-code
  • Strong practical experience with AWS cloud services including ECS Lambda and CloudWatch.
  • Familiarity with containerization technologies likeDocker. Experienceworking effectively within Agile environments.
  • Security: Familiarity with modern Application Security Practices (OWASP).
  • Certifications: AWS Azure or GCP Certification.

Whats In It For You

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) 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 worlds 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 were 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 onand 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


Required Experience:

Senior IC