[Skip to main content](#main-content) [OpenNash Jobs](https://jobs.opennash.com/) [Hiring report](/reports/hiring/) · [All RTX jobs](https://jobs.opennash.com/companies/rtx/) · [Search jobs](/search/) RTX · MAWSON LAKES, SA, AU # Senior Systems & Cyber Security Specialist MAWSON LAKES, SA, AU Full-time Senior individual contributor Security Listed on RTX’s official careers site. Listed as of October 21, 2026. Check that it is still open and apply there. [Apply on RTX’s careers site →](https://globalhr.wd5.myworkdayjobs.com/REC_RTX_Ext_Gateway/job/AU-SA-MAWSON-LAKES-111--1-11-Technology-Dr--BLDG-111/Principal-Systems---Cyber-Security-Specialists_01871569) [OpenNash Jobs](https://jobs.opennash.com/) / [RTX](https://jobs.opennash.com/companies/rtx/) / Senior Systems & Cyber Security Specialist ## Job description ### Date Posted 2026-09-09 Country: Australia Location: AU-SA-MAWSON LAKES-111 ~ 1-11 Technology Dr ~ BLDG 111 Position Role Type: Hybrid Shape Critical Defence Infrastructure: Contribute to systems and cyber security for nationally significant infrastructure that directly supports Australia’s defence capabilities and operational readiness. ### Technical Expertise in Cyber Security Support the complete cyber security assessment and authorisation lifecycle from threat assessment through to Authority to Operate certification, working as a specialist on a high-profile modernisation program. ### Grow Your Cyber Career Develop specialised skills in defence security frameworks and multi-level classification systems. Your mission starts here at Raytheon Australia! Raytheon Australia is a trusted capability partner delivering some of the most complex, innovative and meaningful engineering projects for the Australian Defence Force. Right now, we are experiencing exciting growth and are seeking motivated and experienced Senior Systems & Cyber Security Specialist to join our growing Cyber team in Adelaide that will be responsible for the delivery of system & cyber security outcomes. This is a program-based role, and your primary focus will be executing security assessment and authorization activities. This will include the preparation and maintenance of cybersecurity artefacts (e.g., SSP, SSP-A, SRMP, CMP) as directed. You will analyse both existing systems and systems under development and implement security controls and review system changes for compliance. Depending on experience and level, this role may also involve technical leadership, coaching, and mentoring other staff. ### Skills, Experience & Qualifications Certifications in cyber security or related IT field (e.g. CompTIA, ISACA, ISC2, Microsoft etc) A university degree in Information Technology, Engineering, Computer Science, Cyber Security or related discipline (or equivalent practical experience). Cyber Security Certifications (E.g. ISSP, CISM, CRISC, Sec+, GSEC, CEH) Exposure to security tools, vulnerability scanning, or incident response. Familiarity with Defence and Australian Government security frameworks (ISM, DSPF, PSPF) We offer outstanding opportunities to grow, with Raytheon Australia’s exclusive professional development programs, and a raft of employee benefits tailored to suit every stage of your career and lifestyle. This is the opportunity for you to build your career in a world class team and help update and sustain the Defence systems that keep Australia safe. If you are looking for a challenging and rewarding career access your next mission now by clicking on the apply button below or contact us at careers@raytheon.com.au RTX adheres to the principles of equal employment. All qualified applications will be given careful consideration without regard to ethnicity, color, religion, gender, sexual orientation or identity, national origin, age, disability, protected veteran status or any other characteristic protected by law. ### Privacy Policy and Terms Click on this link to read the Policy and Terms ## At a glance - Posted by the employer: Not stated - First seen by OpenNash: Oct 13, 2026 - Last checked: Oct 21, 2026 - Listed for: 8 days - Location: MAWSON LAKES, SA, AU - Employment type: Full-time[Apply on RTX’s careers site →](https://globalhr.wd5.myworkdayjobs.com/REC_RTX_Ext_Gateway/job/AU-SA-MAWSON-LAKES-111--1-11-Technology-Dr--BLDG-111/Principal-Systems---Cyber-Security-Specialists_01871569) ## More jobs at RTX ### [Principal Systems & Cyber Security Specialist](https://jobs.opennash.com/companies/rtx/jobs/6c83a8cbfd032fce3ffb/) MAWSON LAKES, SA, AU ### [Communication Systems Technician](https://jobs.opennash.com/companies/rtx/jobs/24cc275f3ba9c9774e31/) MAWSON LAKES, SA, AU ### [Facilities Administrator](https://jobs.opennash.com/companies/rtx/jobs/6b69a45a5eaa9ba1d0b2/) MAWSON LAKES, SA, AU ### [Field Technician](https://jobs.opennash.com/companies/rtx/jobs/52978a7163491f3cf306/) MAWSON LAKES, SA, AU ### [ICT Field Technician](https://jobs.opennash.com/companies/rtx/jobs/9ea7fa7536f0a0677116/) MAWSON LAKES, SA, AU ## Similar jobs at other companies ### [Cyber Systems Security Engineer](https://jobs.opennash.com/companies/lockheed-martin/jobs/e5c44cc3d57d9582a11e/) Lockheed Martin · Mawson Lakes, AUS, Melbourne, Canberra ### [Cyber Systems Security Engineering Associate Manager](https://jobs.opennash.com/companies/lockheed-martin/jobs/7ccb5e24d3627bd33c86/) Lockheed Martin · Dartmouth, CAN, Montreal, Ottawa ### [Industrial Cyber Security Engineer - Automation Systems](https://jobs.opennash.com/companies/siemens-energy/jobs/c4bba7d49159b8d874f6/) Siemens Energy ### [Security Architect - Cyber Security](https://jobs.opennash.com/companies/vodafone/jobs/769d1e41f2fb108d4b71/) Vodafone · Dublin, Ireland ### [Cyber Security Specialist](https://jobs.opennash.com/companies/vodafone/jobs/b9ed855256886508231f/) Vodafone · LISBOA, Portugal [Security jobs](/functions/security/) OpenNash lists jobs from employers’ own careers sites and does not handle applications. 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