About the Company As one of Australia’s leading security companies, MSS Security is 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 www.msssecurity.com.au . 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. Are you someone who thrives in high - trust environments and takes pride in doing things the right way? You are professional, adaptable and committed to delivering high standards of security and customer service. You enjoy working in a team environment while also being confident working independently when required. About you: Australian Citizenship - required for Defence security clearance eligibility A current Security License valid in NSW Baseline Defence Clearance or must be willing to obtain a Baseline Clearance Excellent communication skills and the ability to interact confidently with Defence personnel and site stakeholders The ability to remain calm under pressure and make sound decisions A strong sense of integrity , accountability , and attention to detail Previous security experience is advantageous but not essential. We welcome applications from motivated individuals looking to build a long term career in the security industry. Veterans encouraged to apply. Master License Number: 408742075 How to apply MSS Security is an Equal Opportunity Employer, valuing the unique backgrounds, experiences, and contributions of each person We encourage and celebrate diversity. We are proud to: be certified by the Workplace Gender Equality Agency, be a partner and supporter of Veterans employment and honoured to have an endorsed INNOVATE Reconciliation Action Plan. Click APPLY to complete your application and you will be prompted to answer a few simple questions and upload your CV. Thanks for taking the time to consider MSS as a future employer and we look forward to hearing from you .