" \u003cdiv class=\"ja-job-details\"\u003e \u003ch2 class=\"title\"\u003eOT Security Engineer | Hyperscale Data Centres | Melbourne\u003c/h2\u003e \u003cdiv class=\"meta\"\u003e \u003cul class=\"classifications\"\u003e \u003cli data-id=\"14076\"\u003e IT Security \u003c/li\u003e \u003cli data-id=\"14077\"\u003e Permanent / Full Time \u003c/li\u003e \u003cli data-id=\"14078\"\u003e Melbourne \u003c/li\u003e \u003c/ul\u003e \u003cp class=\"date-posted\"\u003e 7/10/2026 \u003c/p\u003e \u003c/div\u003e \u003cul class=\"bullet-points\"\u003e \u003cli\u003e$145k + super + STI, plus 4 extra recharge days\u003c/li\u003e \u003cli\u003eWork across BMS, EPMS and ICS at hyperscale sites\u003c/li\u003e \u003cli\u003eShape an OT security program from the ground up\u003c/li\u003e \u003c/ul\u003e \u003cdiv class=\"description\"\u003e \u003cstrong\u003eAbout the role\u003c/strong\u003e\u003cbr\u003eYou\u0027ll 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\u0027s a hands-on engineering role, suited to someone who can turn security requirements into practical solutions on the ground.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eWhat you\u0027ll be doing\u003c/strong\u003e\u003cbr\u003e- Supporting the delivery of the OT security uplift program\u003cbr\u003e- Assessing OT networks, ICS/SCADA, BMS and EPMS environments, and recommending fixes\u003cbr\u003e- Helping develop OT security standards aligned to ISA/IEC 62443 and NIST 800-82\u003cbr\u003e- Embedding security controls into new builds, retrofits and live systems\u003cbr\u003e- Designing secure OT network architecture, segmentation and hardening\u003cbr\u003e- Deploying and tuning OT monitoring tools (asset discovery, anomaly detection)\u003cbr\u003e- Supporting OT incident response, patching, firmware updates and vulnerability remediation\u003cbr\u003e- Building relationships with vendors and integrators to make sure systems are delivered securely\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eWhat you\u0027ll bring\u003c/strong\u003e\u003cbr\u003e- 4 to 7 years experience, including 2 to 3 years in OT security, ICS/SCADA security or critical infrastructure\u003cbr\u003e- Working knowledge of industrial protocols (Modbus, BACnet, DNP3, OPC)\u003cbr\u003e- Experience with BMS, EPMS, PLCs and industrial controllers\u003cbr\u003e- OT network segmentation and hardening experience (Windows, Linux, HMIs, controllers)\u003cbr\u003e- Exposure to OT vulnerability management and incident response\u003cbr\u003e- Experience applying ISA/IEC 62443, NIST 800-82 or similar frameworks\u003cbr\u003e- The ability to explain security in plain English to engineers and operations teams\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eNice to have\u003c/strong\u003e\u003cbr\u003e- GICSP, GRID, ISA/IEC 62443 certification or CCNA\u003cbr\u003e- Experience in data centres, utilities, manufacturing, mining or other critical infrastructure\u003cbr\u003e\u003cbr\u003eWhat\u0027s on offer\u003cbr\u003e- $145k + super + STI\u003cbr\u003e- Extra paid recharge days a year on top of annual leave\u003cbr\u003e- Wellness allowance\u003cbr\u003e- Extra paid parental leave (primary carer)\u003cbr\u003e- Flexible start and finish times\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003ePlease 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.\u003c/strong\u003e\u003cbr\u003e\u003cbr\u003eTo apply or for a confidential chat, contact Kris Rosentreter on 0452 564 644 or kris@decipherbureau.com \u003c/div\u003e \u003cdiv class=\"apply\"\u003e \u003ca class=\"back-link\" href=\"#\" title=\"Back to search results\"\u003eBack to search results\u003c/a\u003e \u003cinput type=\"button\" class=\"ja-button\" data-job-id=\"4476503\" value=\"Apply Now\" title=\"Apply Now\" /\u003e \u003c/div\u003e \u003c/div\u003e "