L3Harris is dedicated to recruiting and developing high-performing talent who are passionate about what they do. Our employees are unified in a shared dedication to our customers’ mission and quest for professional growth. L3Harris provides an inclusive, engaging environment designed to empower employees and promote work-life success. Fundamental to our culture is an unwavering focus on values, dedication to our communities, and commitment to excellence in everything we do.

L3Harris is the Trusted Disruptor in defense tech. With customers’ mission-critical needs always in mind, our employees deliver end-to-end technology solutions connecting the space, air, land, sea and cyber domains in the interest of national security.

L3Harris is dedicated to recruiting and developing high-performing talent who are passionate about what they do. Our employees are unified in a shared dedication to our customers’ mission and quest for professional growth. L3Harris provides an inclusive, engaging environment designed to empower employees and promote work-life success. Fundamental to our culture is an unwavering focus on values, dedication to our communities, and commitment to excellence in everything we do.

L3Harris Technologies is the Trusted Disruptor in the defense industry. With customers’ mission-critical needs always in mind, our employees deliver end-to-end technology solutions connecting the space, air, land, sea and cyber domains in the interest of national security.

About us

L3Harris Trenchant is an elite global team of engineers and security researchers charged with building world-class computer security products. Trenchant’s expertise is the by-product of the L3Harris acquisition of two highly-regarded information security businesses – Azimuth Security and Linchpin Labs. United under Trenchant, we are a key component of L3Harris’ Intelligence & Cyber Division. We are a trusted, discrete partner furnishing security products, consultancy, training and integration services to allied security, defence, and law enforcement agencies.

About the role

As part of the Global IT Operations team, you’ll play a key role in strengthening and modernizing our core IT services across the region. You’ll work across systems, networks, cloud platforms, and automation tools to deliver secure, reliable, and high-quality services for a highly technical global workforce.

In this role, you’ll help improve operational maturity, enhance service quality, and foster a culture of continuous improvement and accountability. Joining during an exciting growth phase, you’ll contribute to stronger governance, greater trust, and a solid IT foundation as we expand our team and infrastructure.

You’ll support a talented global workforce of around 150 engineers and researchers and may act as the primary technical contact for your site or collaborate closely with peers in a shared-responsibility model.

What the role will involve

The responsibilities of your role will include the following:

• Align IT services with global standards, and ensure stable, reliable infrastructure.
• Resolve issues promptly and communicate clearly for a positive user experience.
• Take ownership of problems and improve systems, processes, and service quality.
• Collaborate effectively with colleagues across regions and share knowledge.
• Enhance security and resilience through disciplined patching and monitoring.
• Operate and maintain regional and global infrastructure services including servers, networks, virtualization platforms, storage systems, and cloud environments.
• Diagnose and resolve complex technical issues.
• Deploy, configure, and maintain Linux servers and containerized workloads.
• Support and improve network infrastructure, including routing, switching, firewalls, VPNs, and site-to-site connectivity.
• Automate infrastructure provisioning and management using tools such as Ansible, Terraform, Python, and Bash.
• Support cloud-based services, particularly AWS.
• Assist in the deployment and maintenance of developer tooling.
• Participate in incident response and serve as an escalation point for complex issues.
• Monitor system health and performance, using tools such as Prometheus, Grafana, and SNMP.
• Enhance infrastructure security through hardening, patching, and vulnerability remediation.

What you’ll bring

To succeed in this role, you’ll need the following experience and skills:

• Proficient in Linux system administration, Juniper JunOS, Cisco IOS, pf Sense firewalls, and VMware v Sphere.
• Strong problem-solving and analytical skills.
• Hands-on experience with networking, containerization, and cloud platforms.
• Eligible to obtain a security clearance (current clearance highly regarded).
• Familiar with automation tools and security best practices.
• Excellent communication and organizational abilities.
• Bachelor’s degree in a relevant field and 5+ years of experience in systems, network, or infrastructure engineering.
• Experience supporting technical or engineering teams.

A few of our employee benefits are:

• An additional week of leave per annum plus the option to buy or sell up to 2 weeks additional annual leave.
• Salary continuance insurance (SCI pays 75% of your base salary and bonus for up to 2 years)
• Flexible working hours and patterns depending on location
• Discounted private health insurance
• Life & Total Permanent Disability Cover
• Novated Car Leasing
• Company supported professional development programs
• Retail Reward programs

Want to explore further?

For more information or a confidential discussion, please contact our Talent Acquisition team by email on HR.IMSA@L3Harris.com

L3Harris respectfully requests no agency submissions at this time.

All applicants must have or be eligible to obtain an Australian Defence Security Clearance.

Eligibility and clearance process information can be found at;

https://www.defence.gov.au/security/clearances/about/overview

As an equal opportunities employer, L3Harris is committed to the equal treatment of all current and prospective employees and does not condone discrimination on the basis of age, disability, sex, sexual orientation, pregnancy and maternity, race or ethnicity, religion or belief, gender identity, or marriage and civil partnership.