Senior Corporate Security Engineer

1 week ago

Sydney, New South Wales, Australia The Decipher Bureau Full time $120,000 - $180,000 per year

It's a role for someone who doesn't just "configure and forget," but actually knows how security controls work under the hood and can reason through attacks, mitigations, and trade-offs in practice.

This is an opportunity to own and shape the corporate security function within a high-growth, engineering-led business. You'll be securing systems that underpin a company tackling global challenges in AI, electronic warfare, RF sensing, and advanced defence technology.

So…

  • Can you automate the deployment of controls across Windows, macOS, and Linux?
  • Do you understand how vulnerabilities translate to real-world risk and how to prioritise and remediate them effectively?
  • Can you collaborate with IT and Detection & Response teams, enabling them with the right telemetry and tooling?
  • Are you comfortable scripting in Python (maybe Go too) and using that to scale your impact?
  • Do you get excited about experimenting with new approaches, like using LLMs for automation?

If you found yourself nodding "yes," this might interest you.

Here's what's in it for you…

  • A chance to work with cutting-edge tech in a company that's scaling fast, with a genuine mission to make the world safer.
  • Real autonomy, you'll be trusted to take ownership of security strategy and execution, not bogged down in red tape.
  • A role where corporate security isn't an afterthought, it's central to enabling the business and protecting critical operations.
  • A sharp, engineering-first environment where colleagues care about doing things right.
  • A growing HQ in Sydney (2–3 days a week in-office), with a strong culture and a very real buzz.

What will you be doing?

A "typical day" doesn't really exist here, but you'll likely:

  • Automate and deploy security controls across endpoints, office networks, and remote access.
  • Own vulnerability management end-to-end tracking CVEs, mitigation, and communicating progress to leadership.
  • Respond to corporate infrastructure incidents, working closely with Detection & Response.
  • Collect metrics, identify patterns, and create actionable improvements.
  • Shape and lead the corporate security strategy, ensuring it scales with business growth.
  • Experiment with LLMs and automation to push the boundaries of how security can operate at scale.

Expectations?

This isn't a "click next in the setup wizard" role. You'll be expected to:

  • Go deep technically, hands-on.
  • Reason through threats and design mitigations.
  • Clearly articulate your security decisions to both engineers and business leaders.

You'll shape systems that matter, protecting people, products, and global operations.

Curious?

Drop us a message and let's have a conversation. We'll share more details in confidence so you can decide if this is the right fit.

How to apply…

Your application is 100% confidential. Only you and I will know. Want to chat about what you're looking for? Reach out anytime.

Click APPLY or email me directly at for an informal, confidential conversation.

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