[Skip to main content](#main-content) [OpenNash Jobs](https://jobs.opennash.com/) [Hiring report](/reports/hiring/) · [All Jacobs Solutions jobs](https://jobs.opennash.com/companies/jacobs-solutions/) · [Search jobs](/search/) Jacobs Solutions · Chantilly, VA # Information System Security Officer Chantilly, VA Security Listed on Jacobs Solutions’s official careers site. Posted May 30, 2026. Check that it is still open and apply there. [Apply on Jacobs Solutions’s careers site →](https://jacobs.jobs/jobs/226B64A8691A496588D95B4AA0EFAD7E/) [OpenNash Jobs](https://jobs.opennash.com/) / [Jacobs Solutions](https://jobs.opennash.com/companies/jacobs-solutions/) / Information System Security Officer ## Job description Knack Works is seeking a qualified ISSO to guide the implementation of security requirements, accreditation and monitoring of hardware and software systems. The successful candidate will have demonstrated experience working the Risk Management Framework with Department of Defense (DOD) and Intelligence Community (IC) environments. The candidate will need to maintain the security posture for an information system ensuring policies, standards and procedures are established and followed. The position will perform vulnerability/risk assessment and configuration management to support certification and accreditation assets. ### Duties/Task and Responsibilities - Perform the duties of a Contractor Program Security Officer (CPSO) in support of Intelligence Community (IC) - Collaborate, communicate and respond to internal and external stakeholders on a wide range of information security-related matters - Apply technical depth to a variety of security-related areas to sustain or obtain system accreditation (see required skills) - Represent function in meetings - Manage against program milestones/deadlines to meet contract requirements - Create and update artifacts for Body of Evidence to meet IC and DOD requirements using Xacta, ServiceNow, EMASS or similar - Serve as the point between Program team and a variety of accreditation entities - Write standard operating practices against policy - Perform development of responses to Plans of Action & Milestones (POA&M) - Maintain, update, and conduct routine vulnerability and compliance scanning across all sponsor networks using NESSUS, Rapid7, or similar - Identify corrective actions/mitigation strategies to achieve/sustain RMF compliance - Experience creating, maintaining, and communicating complex information technology documentation, particularly network and security documentation (security compliance, configuration management, patching, centralized authentication, removable media, etc.) ### Qualifications - 5+ years of related Security experience with DoD and IC customers - Bachelor’s degree in engineering, IT Security, Network Systems Technology or related field or 6 years of directly related experience in lieu of degree or any equivalent combination of education, experience, training and certifications - Active TS/SCI with Poly - Strong experience implementing information system security principles NIST 800-53, - 800-171, NSM 8 - Ability to review, analyze, and interpret technical procedures against customer/sponsor security requirements - Solid communication skills, both written and verbal - Ability to effectively represent function information to customers and effectively relay information to internal stakeholders - Strong organizing/planning skills - Experience documenting and testing security controls - Knowledgeable in the system accreditation process from start to ATO approval - Must be willing to work on-site in Northern Virginia - DoD 8570 IAT II Certification (Security+) or higher certification or ability to obtain certification within 4 weeks of starting role - Cloud experience (AWS preferred) - Linux experience - at least intermediate ### Window experience Desired Requirements - Active TS/SCI with Full Scope Poly ### Proficient in Linux/Windows What We Offer - Opportunity to grow - Hands-on exposure to real-world network projects - Supportive team environment with mentoring - Competitive salary and outstanding benefits package - Training and certification support Jacobs is an Equal Opportunity/Affirmative Action Employer. All qualified applicants will receive consideration for employment without regard to race, religion, creed, color, national origin, ancestry, sex (including pregnancy, childbirth, breastfeeding, or medical conditions related to pregnancy, childbirth, or breastfeeding), age, medical condition, marital or domestic partner status, sexual orientation, gender, gender identity, gender expression and transgender status, mental disability or physical disability, genetic information, military or veteran status, citizenship, low-income status or any other status or characteristic protected by applicable law. Learn more about your rights under Federal EEO laws and supplemental language. ## At a glance - Posted by the employer: May 30, 2026 - First seen by OpenNash: Oct 20, 2026 - Last checked: Oct 20, 2026 - Listed for: 143 days - Location: Chantilly, VA[Apply on Jacobs Solutions’s careers site →](https://jacobs.jobs/jobs/226B64A8691A496588D95B4AA0EFAD7E/) ## More jobs at Jacobs Solutions ### [CPSO/Facility Security Officer](https://jobs.opennash.com/companies/jacobs-solutions/jobs/30261aba0f02fffe82de/) Chantilly, VA ### [Aerospace Software Engineer](https://jobs.opennash.com/companies/jacobs-solutions/jobs/0992464b38b2799e7110/) Chantilly, VA ### [DevOps Engineer](https://jobs.opennash.com/companies/jacobs-solutions/jobs/21a52d1ad0890add776a/) Chantilly, VA ### [EPCM Project Director](https://jobs.opennash.com/companies/jacobs-solutions/jobs/2af0cdf4d7c56529174f/) Chantilly, VA ## Similar jobs at other companies ### [Information System Security Officer](https://jobs.opennash.com/companies/lockheed-martin/jobs/c72a2be47d15050132fe/) Lockheed Martin · Sunnyvale, CA ### [Information System Security Officer - E3](https://jobs.opennash.com/companies/lockheed-martin/jobs/a00462ec38e388e5f114/) Lockheed Martin · Moorestown, NJ ### [Information System Security Officer (ISSO)](https://jobs.opennash.com/companies/general-dynamics/jobs/f335f47a61eb8e9304be/) General Dynamics · Huntsville, AL, US ### [Information System Security Officer (ISSO)](https://jobs.opennash.com/companies/general-dynamics/jobs/d15cb1020d78d61e1c4c/) General Dynamics · MacDill AFB, FL, US ### [Information System Security Officer (Onsite)](https://jobs.opennash.com/companies/bae-systems/jobs/ad492054ad5e555f094f/) BAE Systems · Tucson, Arizona, United States [Security jobs](/functions/security/) OpenNash lists jobs from employers’ own careers sites and does not handle applications. Dates come from the employer where stated; “first seen” and “last checked” are our own observations. OpenNash Jobs · Official listings with dates and links to the employer. [Weekly hiring report](/reports/hiring/) · [Methodology](/methodology/)