Job Openings Senior Network Engineer

About the job Senior Network Engineer

Senior Network Engineer


Australian citizenship required. No PR or Work Visa holders. Must hold an active Baseline security clearance (ASD will not sponsor upgrades).

What to Submit

  1. A tailored resume in docx format

  2. Individual responses to each criterion (max 3000 characters each)

RFQ Details

  • RFQ ID: LH-05165

  • Agency: Department of Defence (SA)

  • Closing Date: Friday, 16 January 2026 11:59pm (Canberra time)

  • Estimated Start Date: Monday, 23 February 2026

  • Initial Contract Duration: 12 months

  • Extension Term: Not applicable

  • Number of Extensions: None

  • Experience Level: Senior EL1 equivalent

  • Security Clearance: Must hold active Baseline

  • Location of Work: NT

  • Working Arrangements: Onsite, Monday to Friday between 7am and 7pm (excluding public holidays and shutdown periods). Role is based in Darwin.

  • Maximum Hours: 40 hours per week


Job Details

Infrastructure Engineers implement, manage and retire the infrastructure (including physical, virtual, networking and cloud infrastructure) that supports digital services.

The Network Engineer will be responsible for designing and implementing the essential data communications infrastructure and pathways that enable devices and systems to communicate securely, resiliently and efficiently.

They will design and configure the network infrastructure including routers, switches, firewalls, and wireless systems ensuring optimal alignment with ASD and best practice guidance on security, scalability, and resilience.

Their role spans troubleshooting connectivity issues, enforcing cybersecurity protocols, and optimising technology system resilience across local and wide area networks.

The Network Engineer is responsible for implementing, troubleshooting and managing the network infrastructure of a Darwin-based organisations network throughout the Northern Territory.


Key Duties and Responsibilities

  • Design, implement and maintain the Darwin-based organisations network infrastructure

  • Implement network security remediation and uplift in accordance with Australian Signals Directorate and the Darwin-based organisations requirements

  • Configure and troubleshoot network devices such as firewalls, routers and switches

  • Develop and implement network security functionality across networks

  • Monitor network performance and proactively identify and resolve issues

  • Create documentation to support the Darwin-based organisations networks, including architecture and as-built/as-configured documentation

  • Work closely with the Darwin-based organisations stakeholders and systems owners across multi-disciplinary teams

  • Carry out duties in accordance with the Darwin-based organisations safety, environmental and quality policies, safety principles, corporate values and strategies


About the Organisation

The Australian Signals Directorate (ASD) is a statutory agency in the Defence portfolio that defends Australia against global threats and advances national interests through foreign signals intelligence, cyber security and offensive cyber operations.


Selection Criteria

Individual responses required for each criterion (max 3000 characters each)


Essential Criteria

  1. Demonstrated knowledge and experience implementing and managing WAN/LAN networking (MPLS, VPLS, SD-WAN, VRFs, VLANs, VPNs) and networking protocols (BGP, OSPF, ARP, DNS, DHCP)

  2. Demonstrated knowledge and experience implementing security solutions (firewalls, IDS/IPS, segmentation and segregation techniques)

  3. Experience in the implementation and maintenance of network security infrastructure and security solutions

  4. Experience in providing network monitoring and reporting activities and Industry certifications or equivalents: CCIE, CCNP, CCNA

  5. Demonstrated knowledge and experience with Cisco networking devices (FTD, routers, switches) and management platforms (Cisco ICE, DNAC)

  6. High attention to detail with good communication skills with stakeholders and clients, and experienced in technical writing

Desirable Criteria

  1. Experience in performing architecture reviews to identify gaps in security

  2. Familiarity with operational technology environments and their unique constraints (SCADA, DCS, PLC)

  3. Demonstrate skills in conducting network security risk assessments, which involve evaluating an organisations network security posture by identifying vulnerabilities, weaknesses and potential threats


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