Senior Engineer (Core Web)
CoStar Group3 hours ago
Sydney, AustraliaSenior
Responsibilities
- Build, architect, and review high-quality, scalable, and reliable web software.
- Lead complex frontend feature development using React, TypeScript, and Next.js.
- Optimize web performance and Core Web Vitals, including LCP, INP, CLS, and TTFB.
- Improve platform health, stability, maintainability, technical debt, and system performance.
- Participate in on-call rotations, respond to incidents, and support operational excellence.
- Mentor junior engineers and contribute to engineering standards and continuous improvement.
- Collaborate with Product Managers, Designers, and Engineering teams to deliver customer-focused outcomes.
Requirements
- Degree in Computer Science, Software Engineering, or a related discipline.
- Strong expertise in React, JavaScript, TypeScript, and Next.js.
- Experience building scalable, high-traffic web applications using modern architectural patterns.
- Experience with GraphQL, AWS, Docker, and modern CI/CD practices.
- Proficiency designing and delivering high-quality software in Agile development environments.
- Experience mentoring junior engineers and contributing to engineering best practices.
- Familiarity with modern application security practices and OWASP is preferred.
- Deep understanding of web performance optimization and Core Web Vitals.
Benefits
- Generous compensation and performance-based incentives are offered.
- Benefits include extra annual leave, leadership development programs, LinkedIn Learning, and Perkbox discounts.
- The company promotes an inclusive, equitable workplace and supports workplace adjustments during recruitment.
Tech Stack
Categories
About 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 revenue from subscriptions, listings, and advertising. The company is publicly traded on NASDAQ (CSGP) and is headquartered in Arlington, Virginia, with inclusion in the S&P 500 index.