> Markdown version of [/jobs/ext/1975904-principal-cyber-security-engineer-onsite](https://www.wearedevelopers.com/jobs/ext/1975904-principal-cyber-security-engineer-onsite). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Principal Cyber Security Engineer (Onsite) - **Company:** RTX - **Location:** United States - **Experience:** Expert - **Contract:** Permanent contract - **Skills:** Software Documentation, Cyber Security, Document Management Systems, VMware ESX Servers, Lightweight Directory Access Protocols (LDAP), Windows Servers, Public Key Infrastructure, Red Hat Enterprise Linux, Secure Messaging, VMware VSphere, Data Logging, Information Technology, Vmware - **Published:** August 7, 2026 - **Apply:** https://us.experteer.com/career/view-jobs/principal-cyber-security-engineer-onsite-florida-usa-58830575 ## About the Role uphold information assurance * Maintain system documentation and procedures * Travel up to 10% as needed Tasks * Active TS/SCI security clearance with SCI eligibility * Degree in STEM or advanced degree with 5+ years of relevant experience (or 8+ years for bachelor) * Solid background in RHEL 8/9 administration * Broad understanding of on-prem enterprise IT systems and security (ICAM, LDAP/AD, PKI, secure messaging, enterprise logging, EDR) * Active DoD 8570 IAT Level II certification (e.g., CISSP or Security+) * Experience with Windows servers, VMware (vSphere/vCenter/ESXi), and firewalls * Ability to work onsite in a closed environment and occasional travel Key requirements * medical, dental, and vision insurance * 3 weeks vacation * 401(k) plan with employer matching and retirement contribution * tuition reimbursement * Student Loan Repayment Program * life and disability insurance ## Description Experteer Overview In this role, you contribute to the Starburst program within Collins Aerospace's Starburst Engineering Department. You will implement and sustain cyber security requirements for deployed products in an air-gapped DoD network, collaborating with multi-disciplinary teams. Expect to shape risk posture and information assurance across the enterprise IT service portfolio. You will work onsite with occasional travel and have the chance to influence critical defense IT capabilities. This is a high-impact, mission-driven security engineering position. Compensation / Benefits * Implement and sustain cyber security requirements for deployed products and services * Deploy new capabilities within a DoD air-gapped IT network * Create and present technical materials for diverse audiences * Document system schematics and operational guides * Interface with project engineers and domain leads to manage cyber risk posture and mitigation * Collaborate with cross-functional teams to uphold information assurance * Maintain system documentation and procedures * Travel up to 10% as needed Tasks * Active TS/SCI security clearance with SCI eligibility * Degree in STEM or advanced degree with 5+ years of relevant experience (or 8+ years for bachelor) * Solid background in RHEL 8/9 administration * Broad understanding of on-prem enterprise IT systems and security (ICAM, LDAP/AD, PKI, secure messaging, enterprise logging, EDR) * Active DoD 8570 IAT Level II certification (e.g., CISSP or Security+) * Experience with Windows servers, VMware (vSphere/vCenter/ESXi), and firewalls * Ability to work onsite in a closed environment and occasional travel Key requirements * medical, dental, and vision insurance * 3 weeks vacation * 401(k) plan with employer matching and retirement contribution * tuition reimbursement * Student Loan Repayment Program * life and disability insurance ## Related Videos - [Security Pitfalls for Software Engineers](https://www.wearedevelopers.com/videos/726-security-pitfalls-for-software-engineers) - [Crypto-secure Data Management with In-Database Blockchain](https://www.wearedevelopers.com/videos/632-crypto-secure-data-management-with-in-database-blockchain) - [WebAssembly: The Next Frontier of Cloud Computing](https://www.wearedevelopers.com/videos/972-webassembly-the-next-frontier-of-cloud-computing) - [Thinking Differently - How to Make Money from Cyber Attacks & Cheats](https://www.wearedevelopers.com/videos/745-thinking-differently-how-to-make-money-from-cyber-attacks-cheats) - [What makes Cybersecurity different for critical infrastructure?](https://www.wearedevelopers.com/videos/571-what-makes-cybersecurity-different-for-critical-infrastructure) - [Cyber Security: Small, and Large!](https://www.wearedevelopers.com/videos/259-cyber-security-small-and-large) ## Related Articles - [Highest Paying Tech Companies for Developers](https://www.wearedevelopers.com/magazine/220-highest-paying-tech-companies-for-developers) - [Dev Digest 134 - Where pixels sing?](https://www.wearedevelopers.com/magazine/477-dev-digest-134-where-pixels-sing) - [Fully Remote Software Engineer Jobs](https://www.wearedevelopers.com/magazine/447-fully-remote-software-engineer-jobs) - [9 Ways to Make Money Hacking](https://www.wearedevelopers.com/magazine/333-9-ways-to-make-money-hacking) - [Is Software Engineering Over-Saturated?](https://www.wearedevelopers.com/magazine/418-is-software-engineering-over-saturated) - [Events like RSAC Get You CISOs. Developers Decide What Actually Gets Deployed.](https://www.wearedevelopers.com/magazine/693-events-like-rsac-get-you-cisos-developers-decide-what-actually-gets-deployed)