Cyber Systems Engineer / ISSO

ResponsibilitiesCyber Systems Engineer / ISSO

Location: Annapolis Junction, MDClearance Required: TS/SCI with PolygraphCompany: Peraton – Cyber Missions Team

Join Peraton’s Cyber Missions team as a Cyber Systems Engineer / Information System Security Officer (ISSO) and help shape the future of national security. In this critical role, you’ll secure complex systems, ensure compliance with federal cybersecurity frameworks, and protect some of the nation's most sensitive information.

This is more than just a cybersecurity job—it’s a mission.

What You’ll Do

As a Cyber Systems Engineer / ISSO, you'll be responsible for safeguarding critical systems and data while ensuring they remain compliant, secure, and mission-ready. Your work will directly support national defense, intelligence, and critical infrastructure.

You'll lead or support the full lifecycle of system security operations, including:

• Acting as the Information Systems Security Approval Authority for systems under your purview.

• Providing both technical guidance and compliance expertise across Information Assurance (IA) initiatives.

• Planning, coordinating, and enforcing cybersecurity best practices across multiple systems and projects.

• Maintaining a strong operational security posture for mission-critical environments.

• Developing and implementing security policies, standards, and methodologies to meet and exceed federal requirements.

• Supporting daily security operations, including continuous monitoring, incident response, and log analysis.

• Performing detailed vulnerability and risk assessments to support system Certification & Accreditation (C&A) efforts.

• Evaluating and validating security solutions to ensure readiness for handling classified and sensitive data.

• Overseeing configuration management, system changes, and associated Security Impact Assessments.

Key Deliverables and Documentation

You'll lead or contribute to the development of essential security documentation, such as:

• System Security Plans (SSPs)

• Risk Assessment Reports

• Certification & Accreditation (C&A) packages

• System Requirements Traceability Matrices (SRTMs)

Why Peraton?

At Peraton, we do work that matters. As a trusted partner to essential government agencies, we provide advanced, secure solutions that help defend our nation’s interests and protect what matters most.

When you join our Cyber Missions team, you’ll benefit from:

• Mission-Driven Work that impacts national security.

• Cutting-Edge Technology and complex challenges.

• Career Growth Opportunities in a supportive, innovative environment.

• A team that values collaboration, integrity, and excellence.

Ready to Join the Mission?

Apply now to bring your cybersecurity expertise to the front lines of national defense.

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#AJCM

#MDFSP

QualificationsJob Requirements:

• Experience: 5+ years as an ISSO on projects of similar scope and complexity. Must include experience in at least one of the following:

  • Security tools and technologies

  • Hardware/software security implementation

  • Communication protocols

  • Encryption methods

• Education: Bachelor’s in Computer Science or related field (or 4 additional years of ISSO experience in lieu of degree).

• Certifications: DoD 8570 IAM Level I or higher

• Clearance: TS/SCI with current polygraph

Peraton offers enhanced benefits to employees working on our critical National Security programs, 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. 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$135,000 - $216,000. 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.