Nessus Jobs

The Security Assessor role at TLA focuses on evaluating the effectiveness of security controls within information systems to ensure data protection and regulatory compliance. Key responsibilities include conducting comprehensive security assessments, identifying vulnerabilities through scanning and testing, and collaborating with IT teams to validate remediation strategies. The position requires preparing detailed documentation and ensuring adherence to frameworks such as NIST and ISO 27001. This opportunity is appealing for professionals passionate about national security missions, offering a collaborative culture that values innovation and excellence. The company supports career growth through education reimbursement, certification opportunities, and professional development. The role is based on-site with a focus on delivering impactful outcomes for government customers.

This onsite Site Lead and Information Systems Security Manager role at RTX in Andover, Massachusetts, serves as the primary security authority for classified computing environments. The position involves leading a cybersecurity team, managing policy compliance, and advising leadership on risk levels and technology upgrades. Key responsibilities include acting as the focal point for government and internal stakeholders, mentoring direct reports, and ensuring alignment with national security standards. The role appeals to professionals seeking to shape the future of aerospace and defense within a collaborative culture that values trust and innovation. Candidates must hold an active Secret clearance and possess significant experience in cybersecurity operations and team management.

This full-time Cyber Systems Security Engineer role within Lockheed Martin's Rotary and Mission Systems division focuses on securing critical defense systems, specifically supporting F-35 training and logistics operations. The position involves designing cybersecurity solutions across the entire system lifecycle, conducting risk assessments and vulnerability analyses, and collaborating with architects to resolve security trade-offs. The role also includes performing security testing to validate hardware and software designs and supporting compliance activities. This opportunity appeals to candidates seeking to work on cutting-edge technology in a collaborative environment that values innovation and professional growth. The work arrangement features a hybrid schedule with part-time remote flexibility and part-time on-site presence at a designated facility, requiring travel and a Secret-level security clearance.

This senior IT Systems Engineer role supports Lockheed Martin's aerospace and defense programs at hybrid locations in Texas or California. The position involves managing isolated DoD cloud environments, performing systems administration on Linux and Windows platforms, and handling infrastructure modernization and compliance. Key responsibilities include applying security patches, optimizing performance, and utilizing automation tools like Ansible and PowerShell. The role appeals to professionals seeking to work on complex, purpose-driven technology challenges within a collaborative culture that values integrity and innovation. The hybrid work arrangement offers flexibility by combining remote duties with on-site presence, while the company provides comprehensive career development opportunities and a supportive environment for diverse talent.

The Cyber Information Assurance Analyst III role supports federal government clients by validating security requirements and assessing systems within complex networking environments. Key responsibilities include conducting cybersecurity audits, performing vulnerability assessments using tools like eMASS and Nessus, and analyzing security gaps to provide mitigation recommendations. The position requires travel approximately 85% of the time across domestic and international locations. This opportunity appeals to professionals seeking to work with a diverse holding company that supports economic development for the Chickasaw Nation. The role offers immediate eligibility for premium benefits including medical, dental, vision, and 401(k) with immediate vesting, alongside professional development assistance and a collaborative culture focused on national security.

The Information Systems Security Officer role is based onsite at the Quonset Point, Rhode Island facility and supports the C-130J Maintenance and Aircrew Training System cybersecurity team. The position involves developing and maintaining security plans for classified Windows and Linux environments, managing system accreditation under the Risk Management Framework, and conducting vulnerability assessments using tools like ACAS and Nessus. Key responsibilities include performing routine security scans, applying patches, maintaining Plan of Action and Milestones, and investigating security incidents. This opportunity appeals to professionals seeking to work with a pioneering cyber security organization that values innovation and integrity. The role offers a collaborative culture with flexible work schedules, comprehensive benefits, and the chance to solve complex engineering challenges while supporting national security missions.

The Information Systems Security Officer role within Space Dynamics Laboratory's C4ISR Division supports mission-critical defense and intelligence programs. The position focuses on ensuring system compliance with NIST 800-53 and RMF frameworks while managing the Authorization to Operate process. Key responsibilities include developing security documentation, conducting vulnerability assessments, and coordinating remediation efforts with technical teams. This opportunity appeals to professionals seeking to contribute to national security through innovative satellite and sensor technologies. The role offers a collaborative culture that values empowerment and accountability, with a work arrangement that supports a fast-paced, team-oriented environment.

The Operational Technology Security Engineer role supports a government contractor team delivering strategic IT services to Defense and Federal customers. The position focuses on securing industrial environments by integrating OT processes with information systems, managing vulnerabilities, and implementing risk mitigation strategies. Key responsibilities include analyzing security requirements across the system lifecycle, configuring secure network architectures, and developing incident response plans for SCADA and ICS systems. This opportunity appeals to professionals seeking to apply specialized OT cybersecurity expertise in a mission-critical setting. The role requires a Secret clearance and offers a dynamic environment for those who thrive on solving complex security challenges with minimal supervision.

This full-time onsite System Administrator role supports the Lockheed Martin Space division in Denver, Colorado, focusing on critical classified programs. The position involves managing heterogeneous Windows and Linux server environments, performing system hardening, patching, and cyber compliance activities. Key responsibilities include troubleshooting hardware and network issues, implementing backup and recovery procedures, and maintaining security integrity within closed classified areas. The role offers a unique 9X80 condensed work schedule with every other Friday off, providing significant time away from the office. Candidates will join a large, innovative team dedicated to solving complex global challenges, with opportunities for professional growth in a culture that values integrity and purposeful innovation.

This full-time Senior Systems Engineer and Software Developer role supports the United States Special Operations Command at MacDill Air Force Base. The position focuses on the C2ISR Data Transport Infrastructure, requiring the candidate to lead on-site systems engineering efforts, oversee the design and deployment of complex hardware and software systems, and manage secure enterprise cross domains. Key responsibilities include driving strategic engineering procedures, conducting advanced architectural analysis, and mentoring junior engineers to ensure mission-critical capabilities. The role appeals to professionals seeking to work on high-impact defense missions within a collaborative environment that offers robust benefits, professional development opportunities, and tuition assistance. Candidates must hold a current TS/SCI clearance and possess expertise in systems integration, CI/CD platforms, and security tools.

The Senior Specialist, Information Security Systems Engineering role supports L3Harris's mission to deliver secure technology solutions for national defense across space, air, land, sea, and cyber domains. Based in Dahlgren, VA or Colorado Springs, CO, this on-site position involves applying systems security engineering methods to design, evaluate, and integrate secure networks and systems. Key responsibilities include conducting vulnerability scans, managing risk mitigation strategies, preparing Certification and Accreditation documentation, and serving as the primary incident handler for security events. The role appeals to professionals seeking to work with state-of-the-art security tools and contribute to mission-critical projects within an inclusive culture that values professional growth and work-life success.

This full-time Information Systems Security Officer role is based onsite at the Quonset Point, Rhode Island facility within Lockheed Martin's Rotary and Mission Systems division. The position supports classified cybersecurity operations for the C-130J Maintenance and Aircrew Training System. Key responsibilities include managing system accreditation under the Risk Management Framework, developing security plans, conducting vulnerability scans, and maintaining compliance with NIST and DoD directives. The role appeals to professionals seeking to work on complex engineering challenges within a culture that values innovation, integrity, and purposeful mission work. Employees benefit from flexible work schedules, comprehensive health and wellness benefits, and opportunities for professional growth in a collaborative environment.

This Mid/Sr System Administrator role within Leidos' Intel Sector supports a complex, geographically distributed network environment focused on national security. The position involves installing and maintaining Windows and Linux servers, managing Active Directory configurations, and performing security hardening in high-assurance environments. Key responsibilities include optimizing system performance, managing vulnerability assessments, patching, and documenting infrastructure for incident resolution. The role appeals to candidates seeking to work on cutting-edge cybersecurity and signals intelligence projects with a team that values professional growth and technical upskilling. The position requires a Top Secret clearance with polygraph and offers flexible scheduling options alongside a collaborative culture dedicated to mission-critical innovation.

This senior principal cyber software engineering role supports the Sentinel program within Northrop Grumman Defense Systems, located in Huntsville, Colorado Springs, or Roy. The position requires an active Secret clearance and involves leading design review procedures, decomposing requirements for implementation, and providing systems engineering expertise for enterprise-level cybersecurity systems. Key duties include evaluating designs against Department of Defense standards, utilizing model-based engineering tools, and ensuring compliance with industry regulations. The role appeals to candidates seeking to work on revolutionary defense technologies that impact global security. It offers a collaborative culture that values intellectual curiosity and innovation, with opportunities for professional growth and a work arrangement that includes approximately 10% travel.