Cyber Security Architect

2 weeks ago

Sydney, New South Wales, Australia Buscojobs Full time

The role purpose :
As an OT Cybersecurity Architect, you'll be the lead authority, defining and governing the cybersecurity architecture for all OT projects and enterprise integrations.
Your mission is to embed secure-by-design and secure-by-default principles, ensuring every solution elevates the enterprise's cybersecurity posture, meets regulatory expectations, and aligns with the organization's risk appetite.
You will be responsible for delivering foundational cyber control blueprints, patterns, and ensuring compliance with key standards like IEC 62443 and the Purdue Model.
Key accountabilities :
Strategic alignment : Collaborate with architecture teams to ensure all designs align with the overall roadmap and strategy.
Architectural modeling : Develop and iterate on both logical and physical models for systems architectures.
Solution evaluation : Assess and select the best architectural solutions, documenting the rationale for all decisions.
Technical leadership : Provide technical guidance and leadership to the program teams.
Program communication : Help develop and execute a communication strategy to engage staff and stakeholders.
About you :
We are looking for someone with :
Proven experience as a systems architect in complex technology and/or cybersecurity projects.
10+ years in OT, ICS, or control systems environments, with at least 5 in a dedicated architecture or security design role.
Experience securing critical infrastructure (e.g., transport, rail, energy, utilities, industrial automation).
Deep familiarity with network and system architecture, OT protocol security, remote access hardening, and segmentation strategies.
Certifications such as ISA / IEC 62443 Cybersecurity Expert, SABSA, CISSP-ISSAP, TOGAF (with security focus), or SANS ICS 410 / 515 are highly desirable.
Experience contributing to architecture governance boards, risk forums, and program design reviews.
If this role sounds aligned to your experience, please reach out to Sean at Randstad.
At Randstad Digital, we are passionate about providing equal employment opportunities and embracing diversity to the benefit of all.
We actively encourage applications from any background.
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