Running hyperscale data centres across Asia Pacific and growing fast. Their OT security program is still being built, and this role helps shape it.

- $145k + super + STI, plus 4 extra recharge days
- Work across BMS, EPMS and ICS at hyperscale sites
- Shape an OT security program from the ground up

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)
- Versatile 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 [email protected]

📌 OT Security Engineer (Melbourne)
🏢 Decipher Bureau
📍 Melbourne