Senior Security Engineer

Back to all jobs
  • Leidos
  • Canberra, ACT
  • Full-Time
  • 3 days ago
Published
May 15, 2026
Location
Canberra, Australia
Job Type

Senior Security Engineer: our view in 3 lines...

  • The Role: A senior security engineer role supporting GEO SPACES security operations for mission-critical defence networks, requiring active NV2 clearance and progression to higher clearances.
  • The Person: The person will manage SIEM and threat intelligence platforms, own detection engineering and vulnerability management activities, support incident response and hunt operations, provide system security advice, and maintain stakeholder relationships for GEO SPACES security operations.
  • Requirements: The role requires SIEM platform management, Detection Engineering, Cyber Threat Intelligence platform integration, Vulnerability Management platform maintenance, Quality Assurance of SOC investigations, and Incident Response experience.

Job Description

GEO SPACES - (Senior) Security Engineer

  • Join Leidos & work on AGO GEO SPACES mission critical networks 
  • GEO SPACES Security Operations Capability 
  • Minimum NV2 willing to uplift to TSPV + DISA, located in Canberra 

Due to the nature of the role, you must be an Australian Citizen who holds an active NV2 & be willing to uplift to TSPV security clearance; accompanied by the ability to be successful for a DISA/OSA. 

Your New Role and Responsibilities 

The GEO SPACES Security Operations roles are identified in the Information System Security Management Plan under the GEO SPACES contract. 

This role will report directly to the GEO SPACES Security Operations Team Lead and be capable of operating independently within the scope of their duties.  There is an element of flexibility in these roles based on available skills and experience.  Security Engineers will work closely with the Cyber Security Analysts as well as independently to deliver the following functions: 

Do Work That Matters 

  • SIEM platform management, including system/log on-boarding, health checks, patching, maintenance and service availability incident resolution 
  • Detection Engineering, including ownership of the full Detection lifecycle 
  • System security advice and collaboration with network and operations teams, including IT security engineering of; endpoint, network, gateway and other Change Items 
  • Cyber Threat Intelligence platform and feed integration and maintenance 
  • Vulnerability Management platform and tools, integration and maintenance 
  • Quality Assurance and Control of SOC investigations and response 
  • Support complex and emergency Incident Response activities using a range of cloud and other response tools, techniques and procedures. 
  • Conduct Research, Development and Testing of novel and emerging technologies, threats and opportunities in the cyber security domain 
  • Support Hunt activities using industry frameworks  
  • Provide trusted advisory services 
  • Develop security operations related system requirements 
  • Change review and approvals 
  • Develop and maintain stakeholder relationships, including with partner SOCs and security authorities in and out of Defence 

​

Join us at a pivotal time as we introduce multiple new systems over the first 12–18 months, creating exciting opportunities to shape and mature our evolving capability. 

During that period, it is expected that the following will mature within the Security Operations team: 

  • Team structure and alignment to capability delivery to support the larger team and expected higher cadence of work 
  • Process and procedure for both internal operations and engagement with external capabilities 
  • Reporting within the Leidos structure, the agency and other authorities. 

What You’ll Bring to Make An Impact 

Experience levels that are commensurate with various levels of security operations roles, a passion for IT security operations and the ability to work We are also looking for people that can work well as part of our team.

 

This is a senior role, where candidates will have 5 – 10 years experience delivering the functions listed in Role Description, motivation to drive growth and maturation of existing capabilities and willingness to contribute to the growth of junior team members.  Ideally, previous experience working in an AGO or other intelligence agencies or Defence, and an understanding of key stakeholders and processes associated with delivering security operations in a Defence context. 

Additional information 

Due to the nature of the role, you must be an Australian Citizen who holds an active NV2 & be willing to uplift to TSPV security clearance; accompanied by the ability to be successful for a DISA/OSA. 

If you're looking for comfort, keep scrolling. At Leidos, we outthink, outbuild, and outpace the status quo — because the mission demands it. We're not hiring followers. We're recruiting the ones who disrupt, provoke, and refuse to fail. Step 10 is ancient history. We're already at step 30 — and moving faster than anyone else dares. 

If you're looking for comfort, keep scrolling. At Leidos, we outthink, outbuild, and outpace the status quo — because the mission demands it. We're not hiring followers. We're recruiting the ones who disrupt, provoke, and refuse to fail. Step 10 is ancient history. We're already at step 30 — and moving faster than anyone else dares.

Original Posting:

For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above.

Pay Range:

The Leidos pay range for this job level is a general guideline only and not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law.

Key Skills
? Key Skills in dark blue have been inferred based on similar industry roles
Detection Engineering Incident Response SOC Operations Security Tooling Integration SIEM Security Operations Threat Intelligence Vulnerability Management Quality Assurance

Subscribe to Career Resources

Get the latest career advice, industry insights, and job opportunities delivered to your inbox.