Senior Software Engineer - React/TypeScript & Rails

CoStar Group is seeking a Senior Software Engineer to join the Keystone Squad within our Agent Workflows crew. You'll work across a React TypeScript frontend and Ruby on Rails backend, delivering features and infrastructure used daily by thousands of agents across Australia and New Zealand.

Strong TypeScript and React experience is essential, with solid Rails knowledge and PostgreSQL expertise. You'll contribute to testing, security, and observability while collaborating across teams in a