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Information Systems Security Engineer (ISSE) - FULLY CLEARED with POLYGRAPH REQUIRED
The Information Systems Security Engineer (ISSE) will apply the Risk Management Framework and perform vulnerability testing on large-scale technical programs. This role requires extensive experience in security policy, system configuration, and the use of security tools like NMAP and Wireshark.
Product Security Engineer
In this Role, your responsibilities will be: Execute product security controls such as secure boot, firmware integrity checks, authentication, and vulnerability mitigation. Participate in firmware/software requirement…
Principal Embedded Systems Security Engineer (Onsite - Marlborough, MA) Secret clearance required
Principal Embedded Systems Security Engineer leading RMF authorization, security requirement decomposition, and vulnerability assessment for defense communication systems at Collins Aerospace (RTX), onsite in Marlborough, MA.
Red Team Operator, Senior
Senior Red Team Operator conducts offensive security operations, including Red/Purple Team engagements, to validate security controls and test incident response for Fortune 100 clients. Focuses on exploitation, evasion of security tools, and hands-on testing in Windows/Linux environments, Active Directory, and cloud platforms (AWS/Azure).
Systems Security Engineer
Systems Security Engineer The Opportunity: Are you looking for an opportunity to advance your experience in securing systems that will enable the war fighter? As a systems security and network security engineer, you…
Linux Systems Administrator
Date Posted: 2026-08-24 Country: United States of America Location: US-TX-MCKINNEY-513WC ~ 2501 W University Dr ~ WING C BLDG Position Role Type: Onsite U.S. Citizen, U.S. Person, or Immigration Status Requirements:…
Infrastructure Engineer
Senior Infrastructure Engineer Overview We are seeking a Senior Infrastructure Engineer with strong experience supporting enterprise-level Microsoft environments, networking infrastructure, virtualization platforms,…
Infrastructure Engineer
Overview Our client is seeking a Senior Infrastructure Engineer to support a large enterprise environment consisting of Microsoft technologies, virtualization platforms, networking infrastructure, cybersecurity tools,…
System Administrator
Would you like to perform rewarding work while contributing to the success of an established, growing company? Navstar is an award-winning organization that has a proven track record of successfully providing IT…
Senior Network & Systems Engineer
Basic Qualifications Bachelor’s degree in Computer Science, a related field or equivalent experience is required plus a minimum of 8 years of relevant experience; or Master's degree plus 6 years of relevant…
Cybersecurity Engineer II
Design, deploy, and maintain cybersecurity solutions for DoD environments, including SIEM, IDS/IPS, and vulnerability management, while integrating tools like Splunk and Tenable.
Information Systems Security Officer
Leads IT security for a DoD mission-critical team, managing RMF lifecycle, vulnerability assessments, and compliance (STIG, eMASS) to protect classified systems and support Pacific theater operations.
Information Systems Security Manager
Leads cybersecurity frameworks for DoD networks at Joint Base Pearl Harbor Hickam, designing policies, managing compliance, and responding to incidents to protect classified systems.
Sr. DevSecOps
Designs, secures, and automates cloud infrastructure and CI/CD pipelines in Azure for DoD mission-critical data/ML systems, ensuring compliance with DoD security protocols.