Senior Cybersecurity Engineer

Select Aust Sydney; Sydney; On-site; AUD 120,000 - 180,000; Full time

Benefits offered by this job

Flexible working arrangements

Employee benefits

Job summary

Randstad Defence is seeking a Senior Cybersecurity Engineer to strengthen cybersecurity infrastructure and deliver robust ICT systems for critical defence initiatives in Sydney. This is a permanent full-time role with flexible working arrangements and strong employee benefits.

You will design secure hardware and software architectures to defence specifications, draft ICT security policies, prepare accreditation plans for Authority to Operate (ATO), identify vulnerabilities, perform testing, and

Qualifications

• Degree in Cybersecurity or related field.
• 5+ years as a Cybersecurity Engineer.
• Experience on Australian defence/government projects.
• Knowledge of software and systems engineering methodologies.
• Proficiency with Windows, Linux, Android, VMs, networks, and Python scripting.
• Certifications such as CISSP, CompTIA Security+ or equivalent.
• DevSecOps, penetration testing, and software testing experience desirable.

Responsibilities

• Design and build secure hardware and software architectures for defence specs.
• Draft ICT security policies aligned with standards.
• Prepare accreditation plans for Authority to Operate (ATO).
• Identify vulnerabilities and apply security patches.
• Perform or support penetration testing and ICT evaluations.
• Log risks and coordinate mitigation with cross-functional teams.
• Develop Cyber Security project plans end-to-end.

Skills

Cybersecurity expertise

Defence sector experience

Penetration testing

DevSecOps

Automation with Python

Policy & compliance

Education

Cybersecurity/related degree

Tools

Windows

Linux

Android

Virtual machines

Python scripting

Job description

In partnership with a prominent global defence organisation, Randstad Defence is seeking a skilled Senior Cybersecurity Engineer. The successful candidate will focus on strengthening cybersecurity infrastructure and delivering robust Information and Communications Technology (ICT) systems and solutions for critical defence initiatives.

This is a permanent full-time role based in Sydney with flexible working arrangements and great employee benefits.

About the Role

• Assist in designing and building secure hardware and software architectures tailored to defence specifications.
• Support the drafting of ICT security policies and procedures aligned with corporate and defence regulatory standards.
• Help prepare accreditation plans, standard operating procedures, and key documentation to secure Authority to Operate (ATO) for company-managed systems.
• Identify vulnerabilities and security threats across systems, applying necessary security patches.
• Perform or support penetration testing and comprehensive evaluation activities to validate ICT systems.
• Log risks discovered during security assessments and collaborate with cross-functional ICT team members on mitigation strategies.
• Develop Cyber Security specific project plans, from the creation of the program across the whole process.

About you

• Degree or relevant qualifications in Cybersecurity, Computer Science, Software Engineering, ICT Engineering, or a related field.
• At least 5 years of professional background as a Cybersecurity Engineer.
• Proven experience contributing to Australian defence and government projects.
• Strong knowledge of software engineering and systems engineering methodologies.
• Proficiency with Windows, Linux, and Android operating systems, virtual machines, network security, and scripting languages like Python for automation.
• Industry certifications such as CISSP, CompTIA Security+, networking credentials, or equivalent certifications.
• Background in DevSecOps, penetration testing, and software testing is highly desirable.

The candidates must be an Australian citizen and must have a Baseline Security Clearance and above.

Ref/ RANDEF

At Randstad, we are passionate about providing equal employment opportunities and embracing diversity to the benefit of all. We actively encourage applications from any background.