OT Security Engineer | Hyperscale Data Centres | Melbourne
The Decipher Bureau · Melbourne VIC · hybrid
AUD 145,000 to 145,000 a year
Salary: $145k + Super
About the role
You'll join the Cybersecurity team and work closely with engineering, facility operations, construction and vendors to lift OT security across a multi-site data centre portfolio. It's a hands-on engineering role, suited to someone who can turn security requirements into practical solutions on the ground.
What you'll be doing
- Supporting the delivery of the OT security uplift program
- Assessing OT networks, ICS/SCADA, BMS and EPMS environments, and recommending fixes
- Helping develop OT security standards aligned to ISA/IEC 62443 and NIST 800-82
- Embedding security controls into new builds, retrofits and live systems
- Designing secure OT network architecture, segmentation and hardening
- Deploying and tuning OT monitoring tools (asset discovery, anomaly detection)
- Supporting OT incident response, patching, firmware updates and vulnerability remediation
- Building relationships with vendors and integrators to make sure systems are delivered securely
What you'll bring
- 4 to 7 years experience, including 2 to 3 years in OT security, ICS/SCADA security or critical infrastructure
- Working knowledge of industrial protocols (Modbus, BACnet, DNP3, OPC)
- Experience with BMS, EPMS, PLCs and industrial controllers
- OT network segmentation and hardening experience (Windows, Linux, HMIs, controllers)
- Exposure to OT vulnerability management and incident response
- Experience applying ISA/IEC 62443, NIST 800-82 or similar frameworks
- The ability to explain security in plain English to engineers and operations teams
Nice to have
- GICSP, GRID, ISA/IEC 62443 certification or CCNA
- Experience in data centres, utilities, manufacturing, mining or other critical infrastructure
What's on offer
- $145k + super + STI
- Extra paid recharge days a year on top of annual leave
- Wellness allowance
- Extra paid parental leave (primary carer)
- Flexible start and finish times
Please note: Australian citizenship is required, as the role may need NV1 clearance in future. The role includes a shared on-call roster, with time off in lieu.
To apply or for a confidential chat, contact Kris Rosentreter on 0452 564 644 or kris@decipherbureau.com