Peraton is seeking an Information System Security Officer (ISSO) to support our customer onsite in Washington D.C. Responsibilities include:
- Assist the Information System Security Manager (ISSM) with information assurance efforts, and systems across numerous environments
- Perform Information System Security Officer (ISSO) roles and responsibilities as prescribed by the JSIG and other applicable regulations
- Execute and maintain RMF activities (e.g., control implementation oversight, evidence collection, assessment support, POA&M management, continuous monitoring)
- Maintain security authorization artifacts (e.g., SSP, control narratives, diagrams, inheritance/leverage controls, CM plan, incident handling plan, contingency artifacts, user/admin procedures)
- Operate continuous monitoring: vulnerability management, config compliance, patching coordination, scan result triage, risk acceptance, and remediation verification
- Review and approve security-relevant changes through configuration/change control and validate security configurations after major upgrades
- Support incident response and reporting: participate in investigations, coordinate containment actions, preserve evidence, and contribute to post-incident lessons learned
- Ensure least privilege/access governance: account management oversight, privileged access workflows, periodic access reviews, and audit compliance requirements
- Translate security requirements into implementation guidance that engineering teams can operationalize (clear, testable, and automatable where possible)
Required qualifications
- Active Top Secret clearance with SCI eligibility
- 5 years with BS/BA; 3 years with MS/MA; 4 years additional relevant experience may be considered in lieu of BS degree
- Security+ or equivalent certification (DoD 8570 IAM Level II)
- Experience with SAP 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
Preferred qualifications
- Experience with SCRUM methodologies
- Experience with Ongoing Authorizations
- Experience with Splunk and/or other auditing compliance tools
- Experience with ACAS, Nessus, and/or other vulnerability scanners
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. 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.Skills Required
- Active Top Secret clearance with SCI eligibility
- Bachelor’s degree with 5 years of experience, master’s degree with 3 years, or four additional years of relevant experience in lieu of a bachelor’s degree
- Security+ or equivalent certification meeting DoD 8570 IAM Level II
- Experience with SAP assessments and authorizations
- At least 3 years of experience with ATO processes, continuous monitoring, POA&Ms, security authorizations, NIST 800-37, NIST 800-53 Rev. 4/5, and coordination with Information System Owners and Program Managers
- Experience with SCAP, STIGs, and other compliance tools
- Strong written and verbal communication skills and ability to work effectively with team members
- Experience with Scrum methodologies
- Experience with ongoing authorizations
- Experience with Splunk or other auditing compliance tools
- Experience with ACAS, Nessus, or other vulnerability scanners
Peraton Compensation & Benefits Highlights
The following summarizes recurring compensation and benefits themes identified from responses generated by popular LLMs to common candidate questions about Peraton and has not been reviewed or approved by Peraton.
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Healthcare Strength — Healthcare offerings are described as broad, including medical, dental, vision, mental health support, and specialty programs like virtual physical therapy and surgical/cancer care navigation. Medical coverage is also characterized as a standout part of the overall package in terms of perceived quality.
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Retirement Support — Retirement support includes a 401(k) with employer matching and is repeatedly positioned as a strong component of total rewards. The 401(k) benefit is frequently singled out as one of the most valued parts of the package.
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Leave & Time Off Breadth — Time-off benefits are positioned as robust, including PTO, holidays, paid sick days, and floating holidays, with some roles offering notably generous accrual. Leave breadth is reinforced by related programs such as short/long-term disability and bereavement leave.
Peraton Insights
What We Do
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. 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.
Why Work With Us
We are fearlessly solving the world’s most complex challenges to keep people safe and secure. You can be a part of protecting and promoting that freedom around the world.







