Specialized Infrastructure Services - ISSO Support Systems Engineer

Specialized Infrastructure Services - ISSO Support Systems Engineer Job Locations US-MD-Laurel Requisition ID 2026-167761 Position Category Information Technology Clearance Top Secret/SCI w/Poly Responsibilities Peraton is hiring an ISSO Support Systems Engineer to join our Cyber Mission business unit in Jessup, MD.

As a Systems Engineer on our team, you will support one of the largest enterprise-wide engineering contracts within the Intelligence Community.

This is a full-time position requiring 1880 hours of support per year; and work is performed at a customer location. As an ISSO Support Systems Engineer you will perform the following activities: Serve as a principal advisor to the Government on all matters, technical and otherwise, involving the security of an Information System (IS).

Provide the detailed knowledge and expertise required to manage the security aspects of an IS. Maintain responsibility for the day-to-day security operations of the system.

Responsibilities may also include: Security Control Validation Visits Secure Configuration and Change management Event Management Account Management Vulnerability Management Security Incident Management POA&M Management Reauthorization Decommissioning Collaborate with the System Owner to maintain Approval to Operate (ATO), including the resolution of any Plans of Action & Milestones (POA&M) documents issued by the DAO.

Maintain and validate account and vulnerability management. Develop and provide updated System Security Plans (SSPs) and supporting documentation (e.g.

SECONOPs, diagrams, Privileged User’s Guide). Respond to any data calls. Provide security design guidance and analysis to the project team throughout the Risk Management Framework (RMF) process.

Collaborate with the Information System Security Engineer (ISSE) in the design, build, and self-test of systems. Perform reviews of technical security assessments of computing environments to identify points of vulnerability, non-compliance with established Information Assurance (IA) standards and regulations, and recommended mitigation strategies.

Utilize XACTA, the system of record for SCA data. #MDFSP #AJCM Qualifications Individual Capabilities/Experience Required: Bachelor’s degree or advanced degree in computer science, information systems, engineering or other related discipline plus at least 15 years of systems engineering experience.

A Master’s degree or PhD may be substituted for two years of experience. A high school diploma or GED plus 19 years of systems engineering experience would also be acceptable DoD8570 compliance with Information Assurance Technical (IAT) Level 2 or higher is required.

Strong experience as an ISSO with the customer. Position requires TS/SCI clearance with polygraph. Individual Capabilities/Experience Desired: Strong oral and written communication skills.

Experience managing multiple SSPs Knowledge about upcoming initiatives with the customer affecting SSP management. Applicants selected will be subject to a government security investigation and must meet eligibility requirements for access to classified information.

Peraton offers enhanced benefits to employees working on this critical National Security program, which include heavily subsidized employee benefits coverage for you and your dependents, 25 days of PTO accrued annually up to a generous PTO cap and eligible to participate in an attractive bonus plan.

Peraton Overview Peraton 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.

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 $176,000 - $282,000. 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.