Platform Engineer - DevSecOps

Job Overview

Platform Engineer (DevSecOps) TL;DR Own and build Breaker's CI/CD platform from the ground up. GitLab, AWS, Docker, Infrastructure as Code Embed security into everything: static analysis, secrets management, secure-by-design pipelines 5–7 years experience in DevOps/DevSecOps, ideally in a startup or scale-up environment Strong expertise in GitLab CI/CD, AWS infrastructure, Docker, and Linux systems Australian citizenship required Join an exciting startup backed by globally recognised investors at the bleeding edge of physical AI

About Breaker

The way humans use robots is broken. Modern problems demand more robots than we have operators. Every drone, ground vehicle, and maritime system requires dedicated training, manual control, and constant oversight. One operator per robot. One pilot per mission. Breaker's AI agent breaks this constraint. Our technology turns any robot into a truly autonomous, self-organizing teammate. Operators command and query teams of robots through natural language conversations over the push-to-talk radios they already carry, no laptops, no controllers, no additional gear. Instead of manually flying search patterns across three different screens, you say, \"survey this area and flag anything unusual.\" The robot team figures out how to divide the task, coordinate their movements, and report back what matters. We're fundamentally changing the operator-to-robot ratio. Small teams become force multipliers. Our software deploys directly onboard each robot, enabling real-time, intent-driven control even in contested environments with limited bandwidth. We're solving problems most AI companies never touch: sub-second inference on edge hardware with strict latency, power, and connectivity constraints. We're backed by some of the best investors globally and growing our team across Austin, Texas, and Sydney, Australia. We're a small team of experienced engineers moving fast on technology that will define how humans and machines work together for decades to come. Join us if you want to help build the robots we were promised 🤖

About the Role

We're looking for a Platform Engineer to own and shape Breaker's CI/CD platform, cloud infrastructure, and security posture. This is a foundational role where you'll build the systems that every engineer at Breaker depends on to ship software, and you'll embed security into those systems from day one. Think GitOps methodology, Infrastructure as Code, and a shift-left mindset that puts quality and security tooling directly into developers' hands. You'll be the go-to person for CI pipeline stability, build optimisation, package management, and the AWS infrastructure that underpins it all. You'll work closely with the engineering team daily, sitting alongside developers, unblocking them, and teaching best practices that compound across the organisation. The work is high-leverage: every improvement you make multiplies the output of the entire team. This role reports to our engineering leadership and carries real autonomy over CI strategy and execution. You'll also play a key part in establishing secure, compliant infrastructure as Breaker scales across Australia and the United States.

Key Responsibilities

• Own the CI/CD platform end-to-end: pipeline design, stability, speed, and observability across GitLab
• Build and manage cloud infrastructure on AWS using Infrastructure as Code (IaC), including runners, networking (VPNs, VPCs), and compute
• Implement and maintain security controls within CI: static analysis, software composition analysis, secrets management, and dependency scanning
• Optimise build processes: Dockerfile restructuring, container size reduction, caching strategies, and package registry management
• Establish observability, reporting, and alerting across platform systems to surface issues before they become blockers
• Champion a shift-left approach. Push tooling like pre-commit hooks and linting into developer environments to catch issues early
• Adopt and enforce GitOps methodology: Git as the single source of truth for infrastructure and pipeline configuration
• Collaborate daily with software engineers, joining standups and acting as the first point of contact for CI and infrastructure issues
• Mentor and educate the engineering team on DevSecOps best practices, building a culture of shared ownership over platform quality
• Support the separation of configuration and security information to enable compliant multi-region infrastructure

About You

Required Skills and Experience
5–7+ years of experience in DevOps, DevSecOps, or Platform Engineering roles
Deep expertise in GitLab CI/CD, like pipeline architecture, runners, configuration, and administration
Strong AWS experience: IaC (Terraform/CloudFormation), networking, compute, and cost management
Advanced Docker knowledge: multi-stage builds, image optimisation, registry management
Security-first mindset with hands-on experience implementing static analysis, secrets management, and secure pipeline design
Strong Linux systems administration and package management (comfortable with internals, e.g. Debian packaging)
Experience with GitOps workflows and automation-first infrastructure management
Excellent communication skills. You can explain infrastructure decisions to software engineers and collaborate effectively with passionate developers
Australian citizenship (must be eligible for baseline security clearance)