Senior Software Engineer

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Senior Software Engineer in Australia

CoStar Group
Full time
Email

Australia
10/09/2026
Report

Melbourne

Responsibilities

Own medium-sized projects across engineering design, development, testing, production deployment, fixes, and improvements.
Architect and develop scalable, high-performance user interfaces and complex frontend features.
Write, co-write, review, and maintain clear, tested, production-ready code and documentation.
Solve loosely defined technical problems and balance speed, quality, maintainability, and technical debt.
Contribute to domain-wide architecture, system health, technical debt backlogs, security standards, and technology standards.
Use GraphQL by adding and modifying queries and mutations.
Collaborate with Lead Engineers and Tech Leads on process and system changes.
Mentor and guide junior team members while promoting continuous improvement and engineering excellence.

Requirements

Degree in Computer Science, Software Engineering, or a related field.
Deep expertise in React, JavaScript, TypeScript, and Next.js.
Strong understanding of micro frontends, single-page applications, and server-side rendering.
Familiarity with GraphQL queries and mutations.
Hands-on experience using AI coding assistants to improve productivity and code quality.
Experience designing software for high-scale, high-traffic websites.
Experience with DevOps practices, CI/CD, and infrastructure-as-code.
Strong practical experience with AWS, including ECS, Lambda, and CloudWatch.
Familiarity with Docker and other containerization technologies.
Experience working in Agile environments.
Familiarity with modern application security practices, including OWASP.
AWS, Azure, or GCP certification.

Benefits

Domain promotes an equitable and inclusive work culture and supports workplace adjustments for candidates with disabilities.
The employer provides accessible job advertisements and confidential support through its Equity, Diversity and Inclusion team.
CoStar Group is an equal employment opportunity employer with a drug-free workplace and pre-employment substance abuse testing.

CoStar Group

CoStar Group builds subscription databases, analytics, and online marketplaces for commercial and residential real estate professionals, investors, and advertisers. Its portfolio includes CoStar (research and data), LoopNet (commercial listings), and Apartments.com (rental listings), generating r...

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