OCRT Consulting | Canberra, Australian Capital Territory, Australia (In office)

OCRT Consulting is a sovereign, veteran-owned Australian SME delivering professional services across Defence, Government and national security. We’re looking for an experienced network and communications architect to support a Defence client with Joint Force C4 design.

The opportunity:

You’ll join a foundational design team building the C4 system-of-systems architecture that will let the integrated force exchange information, both across the ADF and with coalition partners. You’ll focus on two layers of the architecture. The first is routing: network and transport development, security, protocols and standards. The second is bearers: satellite and RF technologies in a military context. Your work will shape design guidance for joint mission threads over the coming decade.

What you’ll do:

- Develop and update foundational C4 design guidance that improves information exchange and technical integration across the Joint Force
- Apply systems engineering and mission engineering thread methods to C4 design
- Build logical, functional and physical designs, and produce ‘As Is’ and ‘To Be’ architecture views and visualisations using digital modelling tools
- Apply Model Based Systems Engineering (MBSE) to formalise outcomes and make the process repeatable
- Work with the standards team to turn design guidance into standards profiles




- Support submissions and briefs to senior design boards, capability gate reviews and investment committees
- Work with Defence Group and Service stakeholders on force integration design artefacts

What we’re looking for:

- Strong knowledge of the OSI model from the transport layer down to the physical layer, including WAN standards and protocols, SATCOM and RF systems
- Experience with ICT architecture views, including the Unified Architecture Framework (UAF), and with enterprise and solution architecture
- Defence capability development or sustainment experience (highly regarded)
- C4 systems-of-systems engineering and/or MBSE experience (highly regarded)
- A collaborative, team-focused approach and strong stakeholder engagement skills (highly regarded)
- Familiarity with Defence writing standards (desirable)

Essential requirements: NV2 clearance minimum (PV preferred) | Canberra-based, with occasional interstate travel

What OCRT offers:

- Competitive remuneration including annual reviews, salary packaging, performance bonuses and incentives
- Professional development with training support and career progression
- Flexible working arrangements, paid parental leave, option to purchase additional annual leave
- Work on Defence programs that strengthen national security and build sovereign capability

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📌 Systems Architect (Defence) (Canberra)
🏢 OCRT Consulting
📍 Canberra