Senior Cyber Security Architect & GRC Lead

Excelium Pty Ltd; Australia; On-site; Full time

Job description

Who We’re Looking For

At Excelium, cybersecurity and national security are more than just our focus- it is at the heart of what we do. We are not traditional consultants, we are modern, adaptable, and effective professionals from diverse backgrounds, united by a shared commitment to excellence. Our high-performing teams are at the forefront of shaping regulatory frameworks, developing innovative solutions, and delivering exceptional services to government agencies, private enterprises, and critical infrastructure providers across Australia.

With our growing team of specialists, our mission is to counter complex cyber and national security threats, support maturity uplift and strengthen organisational resilience nationwide, in a way that is fit for purpose, practical and sustainable for the organisations we work with. Our values – building strong relationships, valuing our people, achieving outstanding results, delivering value for money, upholding a solid reputation, and demonstrating honesty and integrity – underpin everything we do.

As new roles become available for us, we are actively building a solid talent pipeline of experienced Senior Cyber Security Specialists, including professionals with expertise in:

• Cybersecurity architecture
• ICT security policy and implementation
• Governance, Risk and Compliance (GRC)
• Security design and assessment
• IRAP, ISO, E8, CMMC assessments and documentation

Whether you are actively seeking your next opportunity or open to future project work, we welcome your interest.

We are seeking professionals with deep expertise in designing, reviewing, and implementing secure ICT solutions within complex government environments. You’ll be involved in shaping modernisation programs, supporting procurement, and ensuring compliance with Federal Government security frameworks.

Key Responsibilities

• Security architecture reviews and definition of target-state solutions
• Development and review of Statements of Applicability (SoAs)
• Risk assessments, control validation, and alignment to ISM and PSPF
• Drafting System Security Plans (SSPs), SRMPs, SAPs, and SARs
• Assessments aligned to the ASD Essential Eight and cloud (AWS/Azure) controls
• Advice to stakeholders on current-state risks and strategic mitigations
• Vendor engagement, security assurance during procurement, and solution validation
• Working across multi-disciplinary teams including solution architects, business analysts, integrators, ICT, and vendors.

Who You Are

We’re open to both Senior and Principal-level professionals who meet the following selection criteria:

• NV1 AGSVA Security Clearance
• Applicants must be Australian Citizen
• Min 5 years’ experience as a Security Specialist working on complex, large-scale ICT programs or projects
• Tertiary qualifications in Cyber Security, ICT, or a related discipline
• Industry certifications and strong knowledge of ASD Essential Eight and contemporary cloud security practices
• Strong understanding of Federal Government security policies, frameworks, and risk appetite
• Demonstrated experience delivering security documentation and solutions for both current-state and target-state designs
• Proven ability to assess cyber risk, advise on compliance, and produce actionable recommendations
• Excellent stakeholder management and communication skills, including the ability to translate between technical and business language
• High personal integrity, with a track record of delivering under legislative, policy, or budget constraints

Our Commitment to Diversity

Excelium is an equal opportunity employer and is committed to creating an inclusive workplace that values and celebrates diversity. We strongly encourage applications from Aboriginal and Torres Strait Islander people, veterans, individuals with disabilities, and people of all cultural backgrounds.

How to Apply

If you are ready to build or continue a strong career in Cybersecurity, we would love to hear from you.

Please submit your resume along with a cover letter outlining your experience and explaining why you believe you’re the ideal candidate for this position.

For a confidential discussion, please email your questions to [e-mail]- let’s talk!