Senior Security Engineer

Leidos LLC; North Canberra; On-site; AUD 140,000 - 180,000; Full time

Benefits offered by this job

Health and Wellness programs

Paid Leave

Retirement plan

Job summary

Leidos is seeking a Senior Security Engineer in Australia (Melbourne or Canberra) for a predominantly onsite role. Active NV2 clearance and willingness to uplift to TSPV, plus OSA or plans to obtain it, are required; Australian citizenship is mandatory.

You will design and uplift security engineering and operations across the environment, working with security teams to deliver resilient, threat-managed systems and provide guidance to engineers and stakeholders.

Qualifications

• Experience in Security Engineering or Security Operations with hands‑on focus.
• Experience across multiple security technologies (EDR, SIEM/SOAR, IAM, MFA, PAM, HSM).
• Ability to collaborate with stakeholders and mentor junior staff.

Responsibilities

• Manage SIEM/SOAR platforms (e.g. Splunk) including onboarding, health checks, patching and incident resolution.
• Security engineering across endpoint, network, gateway and related technologies.
• Manage vulnerability management tooling and continuous improvement.
• Support incident response activities using enterprise tooling.
• Develop dashboards and alerts; ensure system reliability, security and scalability.
• Provide security engineering advice to internal stakeholders.
• Develop and uplift security operations requirements.
• Participate in change review and approvals.

Skills

EDR/Device Control

SIEM/SOAR

Vulnerability management

MFA

IAM

PAM

HSM

Splunk

Trellix

Carbon Black

CyberArk

BeyondTrust

Tools

Splunk

Trellix

Carbon Black

CyberArk

BeyondTrust

Job description

Senior Security Engineer

Location: Either Melbourne or Canberra based Predominantly onsite role NV2 clearance required (TSPV uplift supported) and OSA required or willing to obtain it 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, and have OSA or be willing to obtain it.

Your New Role and Responsibilities

This role sits within Leidos’s Mission Software System’s capability and will report to the Security Lead. You will be capable of operating independently within your scope, while also working closely with the broader engineering teams. There is flexibility in the role depending on your skills and experience. As a Senior Security Engineer, you will contribute to the design, delivery and uplift of security engineering and operations functions across the environment. Do Work That Matters

• SIEM / SOAR platform management (e.g. Splunk), including onboarding, health checks, patching, maintenance and incident resolution
• Security engineering across endpoint, network, gateway and related technologies
• Vulnerability management tooling, integration and continuous improvement
• Support incident response activities using enterprise tooling
• Managing data ingestion, building and optimizing Search queries, developing custom dashboards and alerts for monitoring, and ensuring system reliability, security, and scalability across the enterprise
• Provide trusted security engineering advice to internal stakeholders
• Develop and uplift security operations system requirements
• Participate in change review and approvals
• Build and maintain stakeholder relationships across internal teams and external partners

What You’ll Bring to Make an Impact

Ideally you will have experience in Security Engineering or Security Operations, with a strong hands‑on focus. You’ll ideally bring experience across a number of the following:

• EDR / Device Control / Application Control (e.g. Trellix, Carbon Black)
• SIEM / SOAR platforms (e.g. Splunk)
• Vulnerability management solutions
• Multi‑Factor Authentication (MFA)
• Identity & Access Management (IAM)
• Privileged Access Management (e.g. CyberArk, BeyondTrust)
• Hardware Security Modules (HSM)

You don’t need experience across all technologies, but strong capability across several of these areas is important. We’re also looking for individuals who:

• Have a strong engineering mindset and problem‑solving approach
• Can operate independently and collaboratively
• Are passionate about cyber security and continuous improvement
• Are motivated to support capability uplift and mentor junior team members

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, and have OSA or be willing to obtain it. If you're looking for comfort, keep scrolling. At Leidos, we outthink, outbuild, and outpace the status quo - because the mission demands it. 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.

Pay and Benefits

Pay and benefits are fundamental to any career decision. That's why we craft compensation packages that reflect the importance of the work we do for our customers. Employment benefits include competitive compensation, Health and Wellness programs, Income Protection, Paid Leave and Retirement. More details are available here.

Leidos Leidos is an industry and technology leader serving government and commercial customers with smarter, more efficient digital and mission innovations. Headquartered in Reston, Virginia, with 47,000 global employees, Leidos reported annual revenues of approximately $17.2 billion for the fiscal year ended January 2, 2026. For more information, visit www.Leidos.com.

Securing Your Data

Leidos will never ask you to provide payment-related information at any part of the employment application process. And Leidos will communicate with you only through emails that are sent from a Leidos.com email address. If you receive an email purporting to be from Leidos that asks for payment-related information or any other personal information, please report the email to [e-mail].

Commitment and Diversity

All qualified applicants will receive consideration for employment without regard to sex, race, ethnicity, age, national origin, citizenship, religion, physical or mental disability, medical condition, genetic information, pregnancy, family structure, marital status, ancestry, domestic partner status, sexual orientation, gender identity or expression, veteran or military status, or any other basis prohibited by law. Leidos will also consider for employment qualified applicants with criminal histories consistent with relevant laws.