Senior Network Engineer

Lockheed Martin Australia Pty Ltd; City of Melbourne; On-site; AUD 120,000 - 150,000; Full time

Job summary

Lockheed Martin Australia Pty Ltd in Melbourne seeks an experienced Network Engineer to design, implement and maintain secure, high-performing Cisco network environments across data centre and remote sites. You will contribute to reliability, scalability and future readiness of critical systems.

Key activities include deploying Cisco IOS/ISE, managing security, backups, and documentation, plus collaborating with engineering teams to deliver secure, compliant network solutions for defence-related

Qualifications

• Bachelor-level IT qualification or equivalent experience.
• Strong knowledge of enterprise networking technologies (BGP, OSPF, QoS, WLAN).
• Hands-on experience deploying Cisco network infrastructure (IOS, ISE, Catalyst).
• Experience with data centre networks and structured cabling.
• Scripting and automation experience (PowerShell, Python, Ansible, Shell).

Responsibilities

• Install, configure, maintain and support Cisco network hardware and software across data centre and remote sites.
• Manage network access controls and security configurations.
• Monitor performance, availability and health of networks, and perform proactive issue resolution.
• Deploy software updates, patches and vulnerability remediation.
• Document configurations and operational procedures for the network.
• Collaborate with technical teams and stakeholders to deliver network infrastructure initiatives.

Skills

BGP/OSPF

QoS/WLAN

SD-WAN

Cisco IOS

ISE

Structured cabling

PowerShell

Python

Ansible

Shell scripting

CCNA/CCNP

SDN

Red Hat Linux

Virtualization

Education

Tertiary IT degree or equivalent

Job description

Competitive salary + discount shopping scheme

Eligibility: Applicants must be Australian citizens and be eligible to obtain and maintain an active Australian Government Defence security clearance at the level required for the position.

Design, implement and maintain secure, high performing network environments across complex multi data centre and remote site operations. Play a key role in delivering reliable network infrastructure, supporting critical business operations and ensuring systems are resilient, scalable and ready to meet future demands.

Work across a broad range of Cisco technologies, including routers, core and user switches, wireless LAN controllers, access points, ISE, network automation and monitoring platforms. Develop and test network solutions, troubleshoot complex technical issues, manage security and vulnerability updates, and maintain robust backup, recovery and documentation processes.

Continuously identify opportunities to improve network performance, reliability and efficiency, while evaluating emerging technologies and contributing to the design and delivery of innovative solutions. Collaborate closely with technical teams, stakeholders and customers to deliver successful outcomes across key projects and initiatives.

Key Responsibilities:

• Install, configure, maintain and support Cisco network hardware and software across data centre and remote site environments.
• Configure and manage network management and service accounts, ensuring appropriate access and security controls are maintained.
• Monitor network performance, availability and health, proactively identifying and resolving issues before they impact users or operations.
• Deploy system-wide software updates, security patches and vulnerability remediation activities.
• Provide technical network support to users and wider IT infrastructure across the project.
• Manage and maintain network configuration backups to support recovery and business continuity.
• Support and maintain Cisco Call Manager systems and associated services.
• Respond to network outages and perform core network recovery activities, including after-hours support when required.
• Investigate complex network issues and develop practical, reliable solutions aligned with business and operational requirements.
• Identify and implement opportunities to improve the management, performance and reliability of wired and wireless networks.
• Contribute to the successful delivery of project milestones, programs and network infrastructure initiatives.
• Maintain accurate technical documentation, network configurations and operational procedures.
• Liaise with customers, stakeholders and technical teams to understand network issues, coordinate solutions and ensure timely resolution.

What you'll bring:

• Tertiary qualification in Information Technology or a related discipline, or equivalent industry experience and education.
• Strong knowledge and practical experience across enterprise networking technologies, including:
• BGP and OSPF
• QoS and WLAN
• SD-WAN
• Hands on experience deploying, configuring and managing Cisco network infrastructure, including IOS, ISE, Catalyst Centre and network monitoring platforms.
• Experience installing and supporting data centre network infrastructure, including structured cabling.
• Experience with network scripting and automation using PowerShell, Python, Ansible and Shell scripting.
• Strong analytical and problem-solving skills, with the ability to investigate and resolve complex technical issues.
• Proficient in AI prompting as it applies to this position and practice.
• As well as the above any skills in the following is highly desirable:
• Intermediate experience with Software-Defined Networking (SDN), network automation, Red Hat Linux and virtualisation technologies.
• Experience working within an engineering, infrastructure or project-based environment, preferably within the defence industry.
• A strong customer and outcomes-focused approach, with the ability to deliver practical and effective solutions.
• A willingness to learn, share knowledge and continuously develop technical skills in a dynamic and evolving technology environment.
• CCNA or CCNP certification.

About Lockheed Martin:

Lockheed Martin is a dynamic organisation, providing stimulating and challenging opportunities with a global team of over 122,000 professionals. We embrace flexibility, so our people can be their best inside and outside of work. As a leader in national security, our innovative and diverse programs create a more secure future for Australia across space, air, land, sea, and cyber domains.

Special Requirements:

Applicants must be eligible to obtain and maintain an Australian Defence Security Clearance and employment may be contingent on the provision of further personal information including citizenship to ensure compliance with international export control legislation and regulations.

Veteran Friendly Workplace:

Veterans are encouraged to apply. We highly value the unique skills and experiences that veterans and transitioning service members can contribute to our team. We are proud to be recognised as a Veteran Friendly Employer by the Australian Government.

Equal Opportunity:

Lockheed Martin Australia supports Equal Employment Opportunity and values diversity in the workplace by creating a place of employment that is, free of unlawful discrimination and is harassment free, fair, ethical, inclusive, and values the contribution of all its employees. By leveraging our employees’ unique talents and experiences, we will deliver innovative, affordable solutions and unparalleled customer value.
As part of our endeavours to increase participation of Indigenous Australians, we welcome applications from all people, including Aboriginal and Torres Strait Islander people.
We are committed to creating a workplace where everyone can thrive. If you are selected for this role, we would be happy to discuss any adjustments that will help you to be successful.

Our collective strengths make a difference in the lives of one another, our customers, our community and our planet. We are at the forefront of helping to solve the world's most complex defence and security problems.

Lockheed Martin's diverse programs form a critical backbone of Australia's current and future defence capabilities including Next Generation Pilot Training, Combat Systems Integration, Rotary Wing Systems and Sustainment, 5th Generation Air Combat Capability and Surveillance across air, sea, land and space.

Our collective strengths make a difference in the lives of one another, our customers, our community and our planet. We are at the forefront of helping to solve the world's most complex defence and security problems.

Lockheed Martin's diverse programs form a critical backbone of Australia's current and future defence capabilities including Next Generation Pilot Training, Combat Systems Integration, Rotary Wing Systems and Sustainment, 5th Generation Air Combat Capability and Surveillance across air, sea, land and space.