Information System Security Officer

ResponsibilitiesPeraton is seeking an Information System Security Officer in support of Peraton Labs’ information assurance and information technology operations. This is a full-time on-site position working out of the Silver Spring, Maryland office.Responsibilities include but are not limited to:Assist the Information System Security Manager (ISSM) with information assurance efforts, and systems across numerous environments in Silver Spring, MD.Perform Information System Security Officer (ISSO) roles and responsibilities as prescribed by the DAAG, JSIG, ICD-503, and other applicable regulations. Assist in the creation, management, and maintenance of RMF Package documentation, submissions, and associated artifacts. This will include A&A packages, ASA packages, SCRs, etc.Prepare, deliver and update all required documentation as directed by the ISSM using the current approved templates, forms, regulations, and methods.Meet continuous monitoring requirements for the accredited information systems, to include weekly auditing, performing of backups, AV updates, OS patching, vulnerability scanning, and other prescribed tasks.Manage security vulnerabilities, implement timely remediation, monitor security logs for violations and anomalous events, and report information security concerns and problems when necessary.Provide information for the generation of Plan of Actions & Milestones (POA&Ms) for each non-compliant control, manage all applicable POA&Ms throughout the information system lifecycle.Oversee the maintenance of Linux and Microsoft classified information systems, with the ability to assist in technical efforts when needed. This may include building systems, installing software, and/or troubleshooting information systems and network devices.Apply security controls based on the DoD Security Technical Implementation Guidance and other customer requirements.Work closely with the key stakeholders to identify any additional controls that are applicable to the system(s) to maintain a favorable security posture.Assist in incident response, annual self-inspection, and inventory efforts.Track the deployment of all applicable software and hardware to classified environments.Provide, track, and report security requirements throughout the system life cycle of all information systems that are within the accreditation boundary.Provide timely and detailed responses to user and customer requests.Continuously maintain a thorough understanding of all relevant corporate policies, security control plans as well as system configurations, architecture, installed software, accounts (both Operating System and Application), data flows, ports, protocols, and other relevant data for each Information System.Maintain required certifications for this role.QualificationsRequired Qualifications/Skills:5 years with BS/BA; 3 years with MS/MASecurity+ or equivalent certification (DoD 8570 IAM Level II).Experience with SAP and/or DCSA assessments and authorizations.3+ years experience with Authority to Operate (ATO) process, continuous monitoring, POA&Ms, Security Authorizations (SA), NIST 800-37, NIST 800-53 Rev4/ Rev5, working with Information System Owners (ISO) and Program Managers (PM).Experience with SCAP, STIGs, and other compliance tools. Proven written and verbal communication skills, and the ability to work well with team members.Active TS clearance with ability to obtain SCI.Desired Skills/QualificationsPreferred degree in a technical discipline such as computer science, cybersecurity, or information technology.Experience with Ongoing AuthorizationsExperience with eMASSExperience with ACAS, Nessus, and/or other vulnerability scanners3+ years of solid Linux system administration working experience with specific focus on Ubuntu and RedHat distributions.Experience with Linux shell scripting include writing new scripts and troubleshoot existing codes.In-depth knowledge of TCP/IP and networking concepts and a solid understanding of the well-known services including DHCP, DNS, SSH, TLS, IPSec, etc.Peraton OverviewPeraton is a next-generation national security company that drives missions of consequence spanning the globe and extending to the farthest reaches of the galaxy. As the world’s leading mission capability integrator and transformative enterprise IT provider, we deliver trusted, highly differentiated solutions and technologies to protect our nation and allies. Peraton operates at the critical nexus between traditional and nontraditional threats across all domains: land, sea, space, air, and cyberspace. The company serves as a valued partner to essential government agencies and supports every branch of the U.S. armed forces. Each day, our employees do the can’t be done by solving the most daunting challenges facing our customers. Visit peraton.com to learn how we’re keeping people around the world safe and secure.Target Salary Range$104,000 - $166,000. This represents the typical salary range for this position. Salary is determined by various factors, including but not limited to, the scope and responsibilities of the position, the individual’s experience, education, knowledge, skills, and competencies, as well as geographic location and business and contract considerations. Depending on the position, employees may be eligible for overtime, shift differential, and a discretionary bonus in addition to base pay.EEOEEO: Equal opportunity employer, including disability and protected veterans, or other characteristics protected by law.Job SummaryRequisition ID: 2026-168211Position Category: Cyber SecurityClearance: Top Secret/SCI