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Cyber Security Architect

C4i Solutions
Posted onFeb 22, 2026
LocationSydney, New South Wales, Australia (On-site)
Employment typeFull-time

Be you with us – Shape the future of Defence and Technology

C4i Solutions is a leading Technology, ICT, and Digital Solutions company, delivering real outcomes for our Defence, Government, and Industry partners. We're growing and we're looking for great people who share our values, believe in our mission, and care about what they do. People who value teamwork, take pride in their work, and want to make an impact.

About the Role:

As a Cyber Security Architect in C4i Solutions, you will be responsible for designing, governing, and assuring secure enterprise architectures across infrastructure, applications, cloud, and operational technology environments. You will provide strategic security direction and ensure security is embedded by design across all technology initiatives. You will act as the technical interface and key stakeholder to our clients and partners. The role is located onsite in Sydney, CBD.

About the role:

  • Develop and maintain enterprise security architecture aligned to the business strategy and overall risk appetite.
  • Design secure network, cloud, application, and data architectures (on-premise and hybrid environments).
  • Define security patterns, standards, and reference architectures.
  • Lead threat modelling and security design reviews for new and existing systems.
  • Translate business and regulatory requirements into technical security controls.
  • Ensure alignment with frameworks such as ISO 27001, NIST, Essential Eight, and Zero Trust principles.
  • Provide architectural oversight for identity and access management (IAM), encryption, PKI, and privileged access.
  • Guide secure cloud adoption (e.g. Azure, AWS, M365 environments).
  • Embed Dev Sec Ops and secure by design principles across delivery teams.
  • Conduct risk assessments and recommend mitigation strategies.
  • Support security accreditation and assurance activities.
  • Advise senior stakeholders on emerging threats, vulnerabilities, and security technologies.
  • Collaborate with Enterprise Architects, Solution Architects, SOC teams, and IT Operations.
  • Contribute to incident response strategy and security improvement roadmaps.

About you:

  • Australian citizen (required for Defence projects) with a min AGSVA NV1 clearance. The ability to obtain a Negative Vetting 2 (NV2) security clearance is preferred.
  • Experience working in complex Defence project settings.
  • A BACH Degree (Relevant to the role) or significant experience.
  • Industry certifications highly regarded.
  • Familiar with ISM, DSPF, PSPF.
  • Communicates clearly and confidently, both written and verbal.
  • Is highly organised with strong attention to detail.
  • Builds positive relationships and manages stakeholders effectively.
  • Works well independently and takes initiative.
  • Can manage competing priorities and meet deadlines.
  • Adapts easily to change and works well in a team environment.

Why Join Us?

  • Veteran-Focused: As a Veteran-owned and operated company, we value your service. Our Veteran Career Development Program is designed to support your transition and future career growth. Defence Veterans are strongly encouraged to apply.
  • People First: Were a company that puts people at the centre. Fostering a culture of wellbeing, engagement, and respect for your unique skills.
  • A Culture That Values You: Be part of a passionate, supportive, and growing team that recognises your contribution and rewards success.
  • And we like to keep things real. We work hard, support each other, and make space for a laugh along the way.

Benefits We Offer:

  • Long Service Leave @ 7 years: Take long service leave after 7 years service (Pro-rata).
  • Health & wellbeing allowance: Our annual Health & Wellbeing allowance ($250) helps you stay fit and healthy.
  • First year leave (5 days): We offer 5 additional leave days in your first year to help you settle in!
  • Birthday leave: We know your birthday is a special day! Take the day off and relax on us!
  • Higher Education Subsidy: Obtain a higher qualification relevant to your role while working with us and receive a $2500 contribution annually. This includes certification fees on digital learning courses.
  • Veteran Engagement: At C4i Solutions, we understand that leaving the ADF can be a daunting time. We've been there, as we know from our own experience. Our Veteran Career Development Program offers a range of support and development activities for ADF veterans and their partners, so that your transition from the ADF is seamless and supported.
  • Service Awards: We acknowledge your service with us through 1, 5, and 10-year awards.
  • Employee Recognition: We reward our people when they go above and beyond.
  • Donate for a Cause: Donate to a charity of your choice and we'll match it up to a value of $200!
  • PLUS, much more!

Be you, with us:

If you're looking for a workplace where your skills, experience, and dedication are genuinely valued we'd love to hear from you. We are a close-knit team of veterans, problem-solvers, tech heads, dads, mums, soccer coaches, and weekend adventurers who love what we do, like to have a bit of fun, and don't take ourselves too seriously. What brings us together is a passion for doing great work that makes a real difference to those who serve.

If this sounds like your kind of team, apply now. We'd love to hear from you.

www.C4isolutions.com.au

An Australian veteran-owned company delivering ICT, Cyber, and Digital solutions across Defence, Government, Space, Emergency Services, and Critical Infrastructure domains since 2017.

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