Blinq Technologies Pty Ltd. in Sydney is seeking a Senior Backend Engineer to design, build, and operate the core services that power our AI-native platform. You'll own features end-to-end—from discovery and data modelling through rollout and observability—and help the team scale for real-time contact sharing and lead capture. You'll work with Node.js and Type Script, collaborate across product, web, mobile, and data teams, and mentor others.