💼 Full-Time Position

Senior Engineer (OAuth2)

🏢
CoStar Group
📍 Australia, New South Wales, Australia
📍
Location
Australia, Australia
📅
Posted
May 31, 2026
Type
Full-Time
🎯

Full-Time Opportunity: This is a permanent, full-time position with a competitive package and real career growth potential.

Job Description

Responsibilities

  • Bachelor’s Degree in a relevant technical specialisation
  • Strong experience in C# / .NET 8+ and ASP.NET Core for distributed backend services
  • Strong understanding of OAuth2, OpenID Connect, and token lifecycle management (PKCE, federation, refresh tokens, assertion grants)
  • Experience designing software solutions for scale 
  • Experience with high traffic customer-facing services
  • Experience working with Tech leads to optimise engineering practices and processes 
  • Experience working with one of the common Cloud Platforms such as AWS, Azure, and/or GCP 
  • Experience with microservices and event-driven architectures
  • Experience with SQL data stores (PostgreSQL, MySQL/Aurora) and NoSQL (DynamoDB, Redis)
  • DevOps practices, CI/CD, and infrastructure-as-code
  • Understanding of shift-left testing and how to implement it in practice 
  • Experience working in Agile environments 
  • Experie...