Principal Platform Engineer

Onset Group
Full time Australia, New South Wales Computer Occupations
Posted:
February 26, 2026
Location:
Australia, New South Wales, Australia

Job Description

Job Description

Principal Platform Engineer Sydney, hybrid

This isn’t a role for someone who wants an established playbook. It's for someone who wants to write it.

You're a Principal Engineer who likes fixing problems, not just maintaining polished systems.

You enjoy early-stage challenges, where velocity matters. The paint’s still wet. And your decisions shape what “good” looks like for years. That’s exactly what you’ll get here.

You'll join a 300-person defence tech company tackling some of the most complex technical problems in modern warfare. Think drones, RF, AI/ML, and sensor fusion. 

After doubling headcount in the last two years (and raising $250M in 2024), they're scaling up platform engineering to keep pace.

This role? It’s a mix of hands-on and strategic.

You’ll work with the Platform Engineering Manager and soon two new seniors you'll help hire...

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Job Overview

Job Type: Full time
Location: Australia, Australia
Posted: February 26, 2026
Deadline: April 07, 2026