Principal Security Engineer – DevSecOps & Automation

6-Month Contract | Sydney CBD | Security Engineering | DevSecOps | AWS | Microsoft Security | IaC | Automation | AI Security | Hands-On Technical Leadership

We’re seeking an experienced Principal Security Engineer to shape security strategy, drive automation and strengthen security practices across a diverse technology environment.

Working across security engineering, DevSecOps and cloud security, you’ll lead security improvements, tackle vulnerability backlogs and embed security into development and infrastructure processes. You’ll play a key role in converting security controls, policies and detection logic into configuration-as-code, while aligning with broader Group security standards.

Key Responsibilities

- Drive security engineering roadmaps and vulnerability remediation.
- Implement DevSecOps practices, Infrastructure as Code (IaC) and security automation.
- Configure and automate Microsoft security controls, including Entra Conditional Access and Microsoft Sentinel.
- Provide technical leadership, mentorship and escalation support to security engineers.

About You





- Proven Principal-level Security Engineering experience with strong technical leadership capabilities.
- Extensive DevSecOps, IaC and security automation experience.
- Hands-on expertise across Microsoft security technologies (Sentinel, Entra, Defender, etc) and AWS.
- Experience implementing security controls and detection logic as code.
- Solid vulnerability management and remediation skills.

Why Join?

This is an opportunity to join a high-impact, hands-on security team where you will have genuine ownership and influence. Rather than operating within a narrowly defined enterprise security function, you will work across a diverse portfolio of ventures and technologies, tackling a broad range of security engineering challenges.

Paxus values diversity and welcomes applications from Indigenous Australians, people from diverse cultural and linguistic backgrounds and people living with a disability. If you require an adjustment to the recruitment process, including the application form in an alternate format, please contact me on the above contact details.

#J-18808-Ljbffr

📌 Principal Security Engineer - DevSecOps (Sydney)
🏢 Paxus
📍 Sydney