MSS Security is one of Australia’s leading security companies, built on teamwork, respect, and integrity. We provide long‑term career paths, stability, and a workplace where your professionalism and dedication are genuinely valued. To find out more, visit our website at The company's master license number is .
About the Role
Join one of Australia's leading security organisations and play a vital role in protecting critical Defence infrastructure across Western Sydney. MSS Security is seeking professional and reliable Defence Security Relievers to support operations across four Defence sites: Glenbrook, Holsworthy, Richmond and Orchard Hills. This unique position offers the opportunity to work across multiple Defence environments, gain broad operational experience, and build a rewarding long‑term career within the Defence sector. You are professional, adaptable, and committed to delivering high standards of security and customer service while working both independently and as part of a team.
Qualifications
- Australian Citizenship – required for Defence security clearance eligibility.
- A current Security License valid in NSW.
- Baseline Defence Clearance or willingness to obtain a Baseline Clearance.
- Excellent communication skills and the ability to interact confidently with Defence personnel and site stakeholders.
- Ability to remain calm under pressure and make sound decisions.
- Strong sense of integrity, accountability, and attention to detail.
- Previous security experience is advantageous but not essential.
- Veterans are encouraged to apply.
How to Apply
Click APPLY to complete your application. You will be prompted to answer a few simple questions and upload your CV. We look forward to hearing from you.
Equal Employment Opportunity
MSS Security is an Equal Prospect Employer, valuing the unique backgrounds, experiences, and contributions of each person. We encourage and celebrate diversity and are proud to be certified by the Workplace Gender Equality Agency, a partner and supporter of Veterans employment, and to have an endorsed INNOVATE Reconciliation Action Plan.
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📌 Security Officer - Defence (City of Sydney)
🏢 Mss Security Pty
📍 City of Sydney
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