Defensive Security Jobs

The Master-at-Arms role serves as the Navy's core security and law enforcement force, protecting personnel, installations, and strategic assets globally. Key responsibilities include conducting antiterrorism patrols, managing access control, performing investigations, and operating security vehicles or boats in diverse environments ranging from ships to overseas bases. The position appeals to those seeking a career defined by continuous professional growth, specialized training in areas like military working dogs or criminal investigation, and leadership development. This full-time active duty role offers extensive opportunities for travel, sea duty, and overseas assignments within a disciplined, team-oriented culture that values precision and service.

The Master-at-Arms role serves as the Navy's core security and law enforcement force, protecting personnel, installations, and strategic assets globally. Key responsibilities include conducting antiterrorism patrols, managing access control, performing investigations, and operating security vehicles or boats in diverse environments ranging from ships to overseas bases. The position appeals to those seeking a career defined by continuous professional growth, specialized training in areas like military working dogs or criminal investigation, and the opportunity to advance into leadership roles. This full-time active duty position offers a dynamic work arrangement involving rotating shifts, potential sea duty, and assignments at domestic and international locations, fostering a culture of discipline, teamwork, and service.

The Master-at-Arms role serves as the Navy's core security and law enforcement force, protecting personnel, installations, and strategic assets globally. Key responsibilities include conducting antiterrorism patrols, managing access control, performing investigations, and operating security vehicles or boats in diverse environments ranging from ships to overseas bases. The position appeals to candidates seeking a dynamic career with significant professional growth, offering specialized training in areas like military working dogs, harbor security, and criminal investigation. The role provides a structured advancement path through leadership courses and warfare qualifications, alongside comprehensive education benefits and a collaborative culture integrated with joint and host-nation partners. Assignments involve rotating shifts and potential deployment to sea duty or forward-deployed locations.

The Master-at-Arms role serves as the Navy's core security and law enforcement force, protecting personnel, installations, and strategic assets globally. Key responsibilities include conducting antiterrorism patrols, managing access control, performing investigations, and operating security vehicles or boats in diverse environments ranging from ships to overseas bases. The position offers a dynamic career path with extensive training in weapons, tactical skills, and specialized fields like military working dogs or criminal investigation. It appeals to those seeking structured advancement, leadership opportunities, and the chance to serve in a mission-critical environment with comprehensive education benefits and a strong sense of purpose.

This full-time security role involves serving as an unarmed officer for a luxury retail location in Santa Clara, focusing on foot and vehicle patrols. The position requires maintaining a visible deterrent presence, providing exceptional customer service, and reporting irregularities or safety hazards to supervisors. Key duties include conducting standardized incident reports and removing trespassers while upholding professional standards. The role appeals to candidates seeking a career with a national firm that offers a drug-free environment, opportunities for merit-based promotion, and comprehensive benefits including health insurance and a 401k match. The company emphasizes a collaborative culture and leverages technology-driven risk mitigation solutions.

This role involves serving as an Insurance Defense Attorney specializing in environmental claims, including pollution, asbestos, and toxic tort matters. The position is based in Franklin Township, New Jersey, with remote work options available. Key responsibilities include representing companies and policyholders in civil litigation, drafting legal documents such as pleadings and briefs, developing case strategies for discovery and trials, and providing clear legal counsel to claims representatives. The role offers a collaborative environment with opportunities to lead training sessions for internal teams. It appeals to candidates seeking professional growth through tuition reimbursement, comprehensive benefits, and a flexible work arrangement that supports a balanced lifestyle.

This Principal Engineer Field role supports the Integrated Air and Missile Defense Battle Command System (IBCS) for the US Army, based in Huntsville, AL, with potential relocation to Poland for equipment fielding. The position involves conducting technical analysis of product implementations, troubleshooting complex network and system issues, and providing on-site training and support to international customers. Key responsibilities include acting as a technical liaison, directing field technicians, and ensuring successful deployment of tactical defense systems. The role appeals to candidates seeking to work on revolutionary national security missions within a culture that values intellectual curiosity and innovation. It offers significant professional growth through exposure to global operations and requires approximately 25% travel, including potential six-month deployments abroad.

The Construction Surveillance Technician role supports secure construction activities for a Department of Defense customer at Naval Base Coronado in San Diego. The position involves monitoring personnel and work within secure sites to ensure compliance with the Construction Security Plan, conducting detailed inspections of materials and facilities, and documenting daily activities and security anomalies. Key duties include preparing comprehensive reports on construction progress and security features, managing access control procedures, and maintaining digital records. This full-time opportunity appeals to candidates with a Top Secret clearance and construction background by offering a comprehensive benefits package including health insurance, retirement plans, and paid time off. The role emphasizes professional growth through training and certification programs within a mission-focused environment dedicated to national security.

This full-time Oracle Database Administrator role supports the Department of Defense and Intelligence Community within a service-disabled veteran-owned firm. The position requires an active TS/SCI clearance and involves installing and upgrading database servers, managing storage allocation, and modifying database structures based on developer input. Key responsibilities include enforcing security policies, monitoring system performance for optimization, performing regular backups, and documenting specifications for future development. The role offers a collaborative environment with a strong technical focus on identity and access management. Benefits include comprehensive medical, dental, and vision coverage paid entirely by the employer, immediate 401k contributions, and professional development assistance. The position is based on-site with potential relocation support available.

This full-time Cyber Security Architect III role supports the Navy Maintenance and Modernization Enterprise Solution, a mission-critical program serving over 45,000 users. The position involves conducting security assessments, analyzing information assurance requirements for complex systems, and designing solutions for Multilevel Security environments. Key responsibilities include applying DoD and DoN regulations, performing risk analyses, and providing technical support for secure software development. The role offers the appeal of working on national defense missions within a culture that values integrity and continuous growth. It provides flexibility through unique time-off benefits and access to robust learning resources. The position requires a Secret clearance and involves up to 10% travel within the Continental US.

This part-time driver role within the Transportation & Logistics team focuses on safely transporting patients to non-emergency medical appointments. Key responsibilities include providing courteous door-to-door service, assisting passengers with boarding and mobility devices, and utilizing GPS and dispatch apps to manage routes efficiently while maintaining accurate trip logs. The position is appealing due to its mission-driven environment that improves healthcare access, offering flexible part-time hours and opportunities for professional growth with a leading healthcare logistics provider.

This full-time on-site Senior Technician role in Norfolk, VA, supports the cyber security team in maintaining system confidentiality, integrity, and availability. The position involves managing endpoint security, monitoring firewall and network solutions, and conducting vulnerability assessments. Key responsibilities include supporting cyber incident investigations, performing risk assessments, and ensuring compliance with security policies. The role offers the opportunity to work within a critical international defense environment with a NATO SECRET clearance. While the position requires 100% on-site presence with occasional business travel to NATO facilities, it provides a chance to apply technical expertise in a high-impact mission-driven setting.

The Security Specialist III role supports JT4, LLC in providing engineering and technical services to U.S. military test ranges. The position focuses on administrative and personnel security operations, including managing clearance statuses, issuing security badges, and coordinating fingerprinting and security briefings for employees and consultants. Key responsibilities involve maintaining detailed records, communicating with clearance granting agencies, and supervising lower-level clerical staff. This position appeals to candidates seeking a mission-driven environment supporting national defense capabilities. The role offers a comprehensive benefits package including health insurance and a 401(k) match, along with opportunities for professional growth through tuition reimbursement. While primarily based in an office setting, the job may require occasional travel to remote work locations. A valid driver's license and the ability to maintain a government security clearance are required.

The Senior Cybersecurity Support Lead role at TekSynap involves leading operational security efforts for government and military clients, including the Department of Defense and Intelligence Community. Key responsibilities include managing cyber incident response, overseeing vulnerability management through tools like ACAS and VRAM, and providing technical subject matter expertise to afloat and ashore system administrators. The position requires an active Secret clearance and eight to ten years of experience in federal cybersecurity environments. This opportunity appeals to professionals seeking leadership growth within a fast-paced, high-tech organization that values agility and comprehensive information management. The work arrangement is hybrid, based primarily in Norfolk, Virginia, with occasional travel to ship visits and government sites.

This onsite Senior Principal Systems Security Engineer role within Raytheon's Systems Directorate focuses on Program Protection and Anti-Tamper strategies for embedded weapons systems. The position involves leading the implementation of holistic security solutions, defining system requirements, and conducting threat modeling to safeguard national defense technologies. Key responsibilities include guiding SSE architectures, managing project execution, and ensuring compliance with DoD security policies. The role appeals to candidates seeking to apply their expertise in a high-impact environment that directly supports the Warfighter's technology advantage. It offers the opportunity to work on technically challenging assignments within a collaborative culture driven by innovation and trust, with relocation assistance available for qualified candidates.

This full-time Systems Administrator role supports the Anti-Terrorism Force-Protection program for the United States Navy within the Navy District Washington region. The position involves installing, configuring, and maintaining Windows operating systems and hardware while managing user accounts, backups, and security controls. Key responsibilities include implementing STIG configurations, performing vulnerability remediation, and providing preventive and corrective maintenance for C4I systems across CONUS sites. The role is highly appealing for professionals seeking to make a direct impact on national security within a collaborative defense environment. It offers opportunities for technical growth and professional development through a company that values every contribution. Due to the nature of the support required, the position involves significant travel of 75% or more to various Navy installations.

This part-time Flex Officer role in Orangeburg, SC involves providing security services across industrial plants, commercial establishments, and work sites. Key responsibilities include conducting regular patrols of buildings and grounds, inspecting for safety hazards and unauthorized access, managing vehicle and pedestrian traffic, and responding to alarms or emergency situations. The position offers a flexible schedule with multiple shift options and features a supportive culture that emphasizes professional growth through extensive training and a promote-from-within philosophy. Employees benefit from a comprehensive benefits package including health insurance, tuition reimbursement, and recognition programs within an award-winning company environment.

The Joint SOF Program Analyst role at Sugpiat Defense supports Department of Defense clients in Tampa, FL, and Fayetteville, NC, focusing on operational planning and program coordination for Joint Headquarters and Joint Task Forces. Key responsibilities include developing strategic operational plans, evaluating performance-based operations, and preparing high-level briefings and documents for senior military leadership. The position involves managing project milestones, analyzing external policy impacts, and facilitating staff development events to optimize deployment activities. This opportunity appeals to professionals seeking to contribute to national security missions within a high-tempo joint environment. The role requires a Top Secret clearance and offers the chance to work on complex strategic initiatives while supporting warfighters and mission assurance.

This part-time Administrative Assistant role supports the National Security Solutions team at KBR in San Diego, contributing to critical space defense and intelligence projects. The position involves managing Contract Data Requirements Lists, coordinating schedules for engineering leads, and overseeing office logistics including visitor security and facility procurement. The role offers the appeal of working on innovative national security initiatives within a collaborative culture that prioritizes professional growth and a Zero Harm environment. The position requires a 20-hour weekly schedule at the San Diego facility and the ability to obtain a SECRET security clearance.

This full-time Correctional Officer role with the Department of Corrections focuses on maintaining security, custody, and order within a state adult correctional facility. Key responsibilities include supervising inmate activities and work crews, patrolling various facility areas, conducting searches for contraband, and responding to emergencies such as riots or fires. The position requires attendance at an 8-week live-in academy in Oklahoma City where lodging and meals are provided, followed by field training at a selected facility. The role appeals to candidates seeking a structured career path with opportunities for advancement to Corporal, offering a clear mission of public safety and institutional security. The position is on-site and requires flexibility to work any shift or day of the week.

This onsite Senior Embedded Software Engineer role is based in Tucson, Arizona, within the Effectors Center of the Software organization at a leading aerospace and defense company. The position focuses on architecting, designing, and deploying real-time embedded software for autonomous avionics systems, integrating firmware and hardware solutions. Key responsibilities include developing complex systems using embedded C++ and real-time operating systems, collaborating with cross-discipline teams to ensure mission assurance and safety, and mentoring junior engineers. The role appeals to candidates seeking to solve hard problems in a mission-driven environment that values innovation, safety, and collaboration. It offers opportunities for professional growth through exposure to next-generation technology and a supportive culture that invests in employee development. U.S. citizenship and the ability to obtain a security clearance are required.

This senior-level Cybersecurity Engineer role supports an enterprise program management office dedicated to securing global communications networks for national defense. The position involves implementing security solutions compliant with DoD, NIST, and RMF directives while managing the Authority to Operate process using eMASS. Key responsibilities include leading vulnerability remediation efforts, developing Plan of Action and Milestones, and mentoring junior team members in a client-facing environment. The role appeals to professionals seeking to protect critical infrastructure with a mission-driven culture that values collaboration and professional growth. While the work arrangement is flexible with remote options, the position requires a Top Secret clearance and may involve occasional on-site collaboration at client facilities.

The Director of Product Management leads the Insider Risk portfolio for Everfox, a leader in defense-grade cybersecurity. Reporting to the Chief Product Officer, this role oversees a global team of senior members and drives strategic alignment across Engineering and Product Marketing. Key responsibilities include defining end-to-end product strategies, creating business cases for innovative solutions, and translating market requirements into actionable roadmaps. The position offers the opportunity to shape the future of critical data protection for government and enterprise clients. The role is based in Salt Lake City, Richardson, or Herndon, and appeals to candidates seeking to lead complex, high-impact projects within a resilient and dynamic organization.

This onsite Vulnerability Researcher and CNO Developer II role at Nightwing focuses on analyzing systems to understand their behavior and developing advanced security techniques. The position requires a TS/SCI clearance and involves working in small teams to study disassembly, write Python scripts, and audit C++ code. Key responsibilities include reverse engineering complex software, understanding OS internals, and utilizing tools like IDA Pro and debuggers to identify and productize vulnerabilities. The role appeals to candidates seeking to work on high-impact missions for the U.S. government within a collaborative culture that values teamwork and innovation. The position is based in San Antonio and requires a U.S. citizenship with a technical degree or equivalent experience.

This Systems Engineer role within the Engineering & Design team at Johns Hopkins Applied Physics Laboratory focuses on architecting and integrating complex defense and aerospace systems for national security missions. Key responsibilities include developing system architectures, managing requirements through model-based systems engineering, conducting trade studies, and leading verification and validation activities alongside multidisciplinary experts. The position appeals to candidates seeking a mission-driven environment that fosters intellectual curiosity, innovation, and professional growth through support for advanced degrees and continuous learning. The role offers the opportunity to tackle high-impact real-world challenges in a collaborative culture while working with cutting-edge simulation tools and industry standards.