Senior Information Security Engineer

Optiver , Sydney, Australia +1

What you will do

What you’ll do

We are seeking a motivated, hands-on Senior Information Security Engineer to join our security team. In this role, you will help protect, monitor, and continuously improve the security of our global systems including cloud (AWS and M365) and on-premises infrastructure. You’ll play a central part in risk mitigation, incident response, automation of security operations, and embedding security best practices across our organisation. An engineering mindset, attention to detail, and a preference for pragmatic solutions are essential to keeping our systems operating.

Main responsibilities include

Monitor daily security operations, identify threats, investigate alerts, and respond to incidents across cloud and on-prem environments.

Optiver needs our next Information Security Engineer to have

At least 5 years experience in an information security or technical engineering role.
Ability to apply analytical thinking to technical problems within a fast-moving environment.
Comfortable with both Windows and Linux environments; familiarity with common security technologies (firewalls, endpoint protection, log management, vulnerability scanning, network security).
Solid scripting skills in PowerShell and/or Python
Knowledge of secure Identity Management, authentication principles, and modern access control patterns.
Experience using security tooling such as EDR, SIEM, SOAR, CASB, etc
Experience securing workloads running both on-premise (bare-metal / container) and on IaaS platforms.
Familiarity with identity lifecycle processes, RBAC, PAM, and privileged identity controls.
Understanding of vulnerability management tools (Nessus/Tenable, RunZero, etc) and secure configuration standards.
Experience with data protection, DLP, or information protection solutions (e.g., Microsoft Purview, DLP rules, classification/labelling).

Please note that we welcome interest from candidates with varying levels of experience; many successful candidates do not meet every single requirement. If you're excited about this role, please apply and allow our recruiters to assess your application.

What you’ll get

You’ll join a culture of collaboration and excellence, where you’ll be surrounded by curious thinkers and creative problem solvers. Driven by a passion for continuous improvement, you’ll thrive in a supportive, high-performing environment alongside talented colleagues, working collectively to tackle some of the most complex problems in the financial markets.

In return for your expertise, you will have access to a range of Optiver perks, including:

A performance-based bonus structure unmatched anywhere in the industry.
The chance to work alongside diverse and intelligent peers in a rewarding environment.
Training, mentorship and personal development opportunities.
Daily breakfast, lunch and an in-house barista.
Gym membership plus weekly in-house chair massages.
Regular social events, including a company trip every two years.

Optiver is committed to diversity and inclusion. We encourage applications from candidates of all backgrounds, and welcome requests for reasonable adjustments during the process.

Questions? Get in touch with the recruitment team at careers@optiver.com.au.

Senior Information Security Engineer

What you will do

What you’ll do

Main responsibilities include

Senior Information Security Engineer

What you will do

What you’ll do

Main responsibilities include

Optiver needs our next Information Security Engineer to have

About Optiver

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