Security Engineer

We’re a ‘Family Friendly’ certified workplace – we understand the often many and varied roles our team members need to play within their own unique family setting and actively support them. Our team feel Leidos is a great place to work. Learn more about our culture and benefits by visiting us here https://www.leidos.com/company/global/australia/careers Do Work That Matters Leidos Australia delivers IT and airborne solutions that protect and advance the Australian way of life. Our 2000 local experts, backed by our global experience and network of partners, are working to solve the world’s toughest challenges in government, intelligence, defence, aviation, border protection and health markets. Your New Role and Responsibilities The Security Engineer is responsible for implementing, configuring and operating technical security controls across the enterprise environment, ensuring systems and platforms are protected in line with organisational and regulatory requirements. The role embeds security into infrastructure, platforms and services by working closely with engineering and operations teams to design, deploy and maintain security capabilities across networks, systems and applications, implementing controls aligned with the Information Security Manual (ISM), Protective Security Policy Framework (PSPF) and Essential Eight requirements. You will manage and maintain security tooling, including endpoint protection, monitoring and defensive controls, ensuring they are correctly configured, integrated and operating effectively. The role supports the detection and analysis of security events, vulnerability management and remediation activities by identifying weaknesses, prioritising remediation, implementing control improvements, ensuring systems are hardened, patches are applied, and security configurations meet defined standards. It also supports secure design and build activities by providing input into system configurations, network design, platform deployments, identity and access controls, network segmentation and secure configuration standards. Working within a multi-vendor environment, the role ensures security controls are consistently implemented and integrated across service providers while supporting compliance and assurance activities through technical evidence and validation. You will also contribute to continuous improvement by strengthening security controls, improving detection and response capability, and supporting Essential Eight uplift activities.

Implement, configure, and operate technical security controls across infrastructure, platforms, and services Manage security tooling, support event detection and analysis, and coordinate remediation activities Perform vulnerability management, including identification, prioritisation, and remediation of weaknesses Support secure design and build by embedding identity, access, and network security controls Collaborate across multi‑vendor teams to ensure consistent control implementation and support compliance activities About You and What You'll Bring Strong hands-on experience implementing and maintaining security controls across infrastructure, networks, and platforms Proven experience configuring and operating security tooling such as endpoint protection, monitoring, and access control systems Working knowledge of Australian Government security requirements including ISM, PSPF, and Essential Eight Experience with system hardening, patching, secure configuration, and vulnerability management practices Strong understanding of identity and access management and ability to embed security into engineering and operational processes This role does require the successful applicant to be an Australian Citizen and holds a current NV-1 level security clearance. Diverse Team Members, Shared Values and a Common Purpose Providing our customers with smarter solutions takes an incredible team with diversity of thought, experience and perspectives