Cloud Security Engineer

Cloud Security Engineer – Leidos Corporate Cyber team – Melbourne/Remote

This role requires the successful applicant to be an Australian citizen and hold minimum a Baseline, with the ability to obtain NV1 security clearance.

About Leidos Australia

At Leidos Australia, our work goes beyond a job title. We design, build, operate and support the systems, services and capabilities that help protect and advance the Australian way of life.

Backed by a global organisation of more than 40,000 people, our Australian team of around 2,000 has partnered with government, defence and national security customers for more than 30 years. We deliver mission-critical solutions where reliability, trust and purpose matter.

Leidos is a destination for people who want their work to have purpose, their contribution to be recognised, and their career to grow without needing to fit a single mould. Meaningful work is supported by benefits, flexibility and career pathways that help you grow while balancing life outside work.

This includes:

• Flex Your Way – Tailor work to your life with options including Life Days (up to 12 extra days off per year), part-time arrangements, job sharing, and compressed hours.

• Wellbeing That Matters – Free access to Headspace and MeQuilibrium, plus dedicated wellness spaces to support your mental, physical, and emotional wellbeing.

• Learn Without Limits – Access over 120,000 on-demand courses, alongside technical, project management, leadership, and professional development opportunities.

• Work That Makes an Impact – Contribute to nationally significant projects that matter, solve complex challenges, and accelerate your career through unique growth opportunities.

• Build Your Future – Whether you're deepening technical expertise or preparing for leadership, we'll invest in your development every step of the way.

• And Much More – These are just a few of the ways we invest in our people and help them thrive.

About the team

Our Corporate Cyber Security team plays a critical role in protecting Leidos' global enterprise environment, ensuring the security of cloud platforms, collaboration technologies, business applications and corporate data.

The Opportunity 

This role will focus on securing enterprise cloud platforms including Microsoft Azure, Microsoft 365 and AWS. Working alongside global cyber security, infrastructure and cloud engineering teams, you will help design, implement and operate security capabilities that protect Leidos' worldwide enterprise environment.

If you're passionate about cloud security, identity protection and cyber resilience, we'd love to hear from you.

In this role you will:

• Design, build and deploy cloud security capabilities that protect Leidos cloud-based systems, networks and information assets.

• Act as a technical Subject Matter Expert (SME) across cloud security services and technologies.

• Provide guidance on cloud security architectures, shared responsibility models and cloud provider security capabilities.

• Partner with global cloud engineering, infrastructure and cyber security teams to deliver secure and scalable solutions.

• Work closely with Microsoft 365, Azure and AWS platform teams to continuously enhance security controls and capabilities.

• Support operational cloud security services, ensuring they remain effective, compliant and aligned to business needs.

• Collaborate with Security Operations and Incident Response teams to support investigations, threat detection and remediation activities.

• Develop technical documentation including solution designs, implementation guides, standards and operational procedures.

• Identify opportunities to automate security processes and improve operational efficiency.

• Contribute to cloud security roadmaps and strategic initiatives that strengthen Leidos' cyber security posture globally.

About you:

We are looking for someone who brings judgement, curiosity and a collaborative approach to work that matters.

Essentials for this role:

• 5+ years' experience in Cyber Security, Cloud Engineering, Infrastructure Engineering or a related technical discipline.

• Experience implementing, supporting and monitoring enterprise cloud security technologies across Azure, AWS or other major cloud platforms.

• Strong knowledge of Microsoft 365 security services, cloud-native security controls and shared responsibility models.

• Experience with identity and access management technologies including Entra ID (Azure AD), Active Directory and Okta.

• Solid understanding of networking fundamentals including TCP/IP, DNS, routing, firewalls and secure network design.

• Strong analytical, problem-solving and communication skills, with the ability to engage technical and non-technical stakeholders.

Advantageous, but not essential:

• Experience with Microsoft Defender, Sentinel, Entra ID governance, Conditional Access and MFA.

• Knowledge of CASB, cloud governance, logging, monitoring and enterprise-scale cloud security architecture.

• Exposure to Infrastructure as Code, scripting or automation tools such as Terraform, Ansible, PowerShell or Python.

• Experience across multi-cloud environments including Azure, AWS or Google Cloud Platform.

• Relevant certifications such as Azure Security Engineer, Cybersecurity Architect, AWS Security Specialty, CCSP or CISSP are highly regarded.

What to Expect When You Apply

Our hiring process is designed to be straightforward, respectful and easy to navigate. If your skills, experience and qualifications look aligned with the role, our Talent Acquisition team will contact you to discuss the next stage.

You can expect:

• An initial conversation with our Talent Acquisition team
• An interview with the hiring manager or interview panel Any role-specific assessment, technical discussion or customer step required for the position
• We’ll let you know what to expect before each stage, including who you’ll meet and how to prepare. If you need any adjustments or support during the process, please let us know.

Ready to explore what’s possible?

If this sounds like a role where you can make an impact and continue to grow, we’d like to hear from you. Please apply via the “Apply Now” button with your resume. If you have any questions about the role or recruitment process, please contact Paul Bui, Talent Acquisition.

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:

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.