Senior Manager, Operational Technology Solution Architect

Mission Critical Recruiting; Sydney; On-site; AUD 180,000 - 240,000; Full time

Job summary

Mission Critical Recruiting presents a Senior Manager, Operational Technology Solution Architect role based in Australia. This security architecture position focuses on how OT is connected, segmented and secured across a data centre estate, ensuring platforms meet GRC policies from access control to vendor remote access.

You'll guide outsourced specialists and partners; no direct reports but strong credibility matters.

Qualifications

• Senior IT or security architect with OT, industrial control or critical infrastructure experience.
• Proven ability to define OT security standards across zones, conduits, segmentation and secure remote access.
• Experience assessing vendor platforms against GRC policies and defining reference architectures for OT-to-IT links.

Responsibilities

• Own OT security architecture and standards aligned to IEC 62443 and ISO 27001.
• Assess vendor platforms and define connectivity requirements with third parties.
• Define OT reference architectures for BMS, EPMS, DCIM and SCADA connections to enterprise IT.
• Provide architecture assurance on new builds, expansions and upgrades.
• Plan lifecycle, obsolescence and resilience across OT platforms.
• Brief senior leaders on OT risk and investment priorities.

Skills

OT security architecture

Network segmentation

Firewalls & remote access

Identity & PAM

IEC 62443

ISO 27001

Vendor/integrator management

BMS/EPMS/SCADA exposure

GICSP/CISSP/TOGAF (useful)

Job description

Senior Manager, Operational Technology Solution Architect

Full time

A hyperscale data centre developer and operator with campuses across APAC is hiring a senior OT Solution Architect, based in Australia, where most of its build programme sits.

This is a security architecture role first. You'll set how operational technology is connected, segmented and secured across the data centre estate, and make sure the platforms and appliances chosen meet the organisation's GRC policies, from access control to vendor remote access. Experience with BMS, EPMS and SCADA environments is a real advantage, but the core of the job is secure architecture.

It's a senior individual contributor role. You won't run an internal team, but you will direct outsourced specialists, integrators and technology partners, so technical credibility and influence matter more than headcount.

Why it's worth a look

• You'll set the OT security standard for a large build programme rather than inherit someone else's
• It sits where data centre engineering, OT and cyber security meet
• A newly structured ICT team with a clear plan and investment behind it

What you'll do

• Own the OT security architecture and standards: zones and conduits, segmentation, secure remote access, identity and privileged access, logging and monitoring, aligned to IEC 62443 and ISO 27001
• Assess vendor platforms and appliances against GRC policy, and set requirements for vendor connectivity and third-party maintenance
• Define reference architectures for how BMS, EPMS, DCIM and SCADA connect to enterprise IT
• Provide architecture assurance on new builds, expansions and upgrades through design, commissioning and handover
• Plan lifecycle, obsolescence and resilience across OT platforms
• Brief senior leaders on OT risk, investment priorities and trade-offs

What they're looking for

• A senior IT or security architect who has worked in OT, industrial control or critical infrastructure environments
• Strong experience with network segmentation, firewalls, remote access and jump hosts, identity and PAM
• Practical knowledge of IEC 62443
• Exposure to data centre or facilities systems such as BMS, EPMS and SCADA is a strong plus
• Experience assuring the work of vendors and integrators
• Certifications such as GICSP, IEC 62443, CISSP or TOGAF are useful