Contract Duration: Until 30 June 2026, with two x 1 year extensions
Rate: $120 – 140 per hour inclusive of super
Location: Edinburgh (Adelaide) or Fisherman's Bend (Melbourne)
Work Arrangement: Onsite
Clearance Required: NV1 (NV2 preferred)

About the Role:
We're seeking a Lead Multi-Domain Infrastructure Engineer to join a critical Federal Government client's Digital Research Infrastructure team. This senior technical leadership role will oversee critical infrastructure remediation and migration projects supporting highly secure digital research environments.

You'll lead a team of infrastructure engineers across multiple technical domains (network, cloud, Windows, Linux) working on complex, secure digital research environments that support science and technology capabilities. This role requires someone who can provide technical leadership, drive infrastructure modernisation, and work collaboratively across interdisciplinary teams in a sovereign capability environment.

Key Responsibilities:

• Lead and coordinate multi-domain infrastructure engineering activities across network, cloud, Wintel, and Linux environments
• Provide technical leadership and guidance to infrastructure engineering team members
• Drive the remediation and migration of Stand Alone Networks to reduce security risks to IT networks and intellectual property
• Design and implement infrastructure solutions across hypervisor platforms, cloud services, and virtualisation technologies
• Lead network modernisation initiatives including configuration of next-generation firewalls, switches, and network segmentation
• Oversee server administration, VDI, and cloud infrastructure deployment across digital science platforms
• Establish and maintain stakeholder relationships with divisional staff and project teams
• Develop automation strategies and orchestration solutions to improve infrastructure efficiency
• Ensure infrastructure hardening, security monitoring, and compliance with government security requirements
• Create technical documentation, troubleshooting procedures, and system configuration guides

Essential Skills & Experience:

• Minimum 7+ years in senior infrastructure engineering or technical leadership roles
• Proven experience leading multi-disciplinary technical teams and complex infrastructure projects
• Strong expertise across multiple infrastructure domains (2 or more of: networking, cloud, Windows, Linux)
• Deep understanding of enterprise infrastructure architecture, design principles, and best practices
• Experience with virtualisation platforms (VMware) and on-premise cloud technologies
• Strong background in network design, security, and management including Cisco routing/switching and next-generation firewalls (Palo Alto preferred)
• Hands-on experience with automation and scripting (PowerShell, Python, Bash, Ansible)
• Knowledge of security hardening, vulnerability management, and security monitoring in complex environments
• Demonstrated ability to troubleshoot complex and undocumented systems
• Excellent stakeholder management, communication, and problem-solving skills
• Ability to work under pressure, meet challenging deadlines, and drive results

Desirable:

• Government or defence industry experience
• NV2 security clearance
• Experience with Microsoft Server environments (2019/2022/2025), Active Directory, and SCCM
• Linux/UNIX administration experience (CentOS, RedHat, Ubuntu)
• Hands-on experience with cloud infrastructure stack deployment and management
• Relevant certifications (Cisco CCNP/CCIE, Microsoft, Linux, VMware, or cloud certifications)
• Experience with DevOps practices and infrastructure-as-code
• Knowledge of micro-segmentation and zero-trust network architectures
• Familiarity with government security frameworks and compliance requirements

Note: This role requires active NV1 security clearance (NV2 preferred). The working location is a government facility in a physical security zone where portable electronic devices (mobile phones, laptops, smartwatches, or any device with Wi-Fi/Bluetooth/4G/5G) are not permitted inside the building.

1 and One Consulting partners with government to deliver meaningful, high-impact projects. We work across multiple portfolios, and successful candidates will likely have the opportunity to transition onto other projects after this engagement.