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Trusted ICT Delivery for Australian Government

Calexi supports federal agencies with secure-by-design solutions, cyber uplift, and program assurance all tailored for complex government environments.

Delivering capability securely and on time? Let’s talk.

Industry Challenges and Opportunities

Australia’s federal government is in a period of accelerated digital reform. From Defence and intelligence to health, social services, and infrastructure, agencies are tasked with modernising platforms, improving security posture, and maintaining uptime in environments governed by tight regulation and public accountability.

Legacy systems, fragmented procurement, and under-resourced delivery teams often stand in the way of progress. At the same time, compliance mandates like the Protective Security Policy Framework (PSPF), Information Security Manual (ISM), and Essential Eight require agencies to demonstrate measurable cyber maturity and control effectiveness.

Departments need experienced, security-cleared partners who can move quickly within government structures, translate complex requirements, and deliver fit-for-purpose outcomes.

Calexi specialises in dealing with government systems the old the new and the immerging.

Tailored Solutions for Australian Government

Calexi brings proven experience across government-led programs, Defence initiatives, and secure system delivery. Our consultants understand the expectations of federal stakeholders — and the real-world constraints that shape delivery.

We help government agencies:

  • Conduct gap assessments against ISM and PSPF controls
  • Plan and implement Essential Eight uplift programs
  • Design and accredit secure ICT systems
  • Integrate and modernise legacy platforms
  • Provide cleared engineering and program delivery staff
  • Lead project recovery and risk remediation efforts
  • Build DevOps pipelines for secure cloud environments
  • Develop ATO documentation and support accreditation

We bring a continuous assurance mindset. This helps operators embed security into operations without compromising safety or From urgent capability delivery to long-term transformation, we operate inside government constraints and deliver with confidence.

Our Experience in the Field

Secure System Design and Accreditation for a Government Network

Our staff specialise in government networks secure design we have security, cyber and operations covered.

Our staff have led the engineering, accreditation and operational sustainment of a high-assurance Defence ICT environment. This included full lifecycle support from design and architecture through deployment, system documentation and ATO engagement. The project was delivered in partnership with allied stakeholders and aligned to both ISM and DISP requirements.

Project Recovery and Cyber Remediation for Government Capability

Calexi staff were engaged late-stage to assess a faltering government capability project. Through targeted gap analysis and rapid design leadership, our team identified critical weaknesses and delivered a remediation roadmap that secured the program’s future. The engagement is a testament to our ability to intervene, realign and accelerate delivery in complex environments.

Calexi Staff are great at rapidly reviewing project from the outside finding the pain points and providing actionable remediation.

Why Calexi for Government

We understand how government works and what’s at stake when delivery falters. Our consultants hold active government clearances and have deep experience delivering inside APS, Defence, and regulated agency environments.

We speak the language of security, compliance and capability not just buzzwords. Whether embedded into government teams or operating as independent delivery support, Calexi brings the grit, clarity and accountability federal programs demand.

We’re DISP-aware, ISM-aligned and focused on outcomes that stand up to internal audits, public scrutiny and operational use.

Need clear, secure delivery support across your agency?