Cyber Systems Engineer, Senior Advisor

Position Title: Cyber Systems Engineer
Location: Annapolis Junction, MD
Company: Peraton – Cyber Mission Business Unit
Clearance Required: TS/SCI with Polygraph

Your Mission: Protect. Enable. Advance.

Peraton is seeking a skilled System Engineer / Information System Security Officer (ISSO) to play a key role in a high-impact cyber mission critical to national security. Based in Annapolis Junction, MD, you’ll be part of a dedicated team protecting sensitive systems, identifying risks, and enabling secure innovation.

What You’ll Do:

As the ISSO, you will lead efforts to safeguard complex systems by conducting vulnerability scans, managing risks, and collaborating with cross-functional engineering teams. You will ensure secure design and operation through the Assessment and Authorization (A&A) process and support enterprise-wide cyber resilience. This is a dynamic and impactful role where your expertise will directly support mission success.

Key Responsibilities:

• Conduct and analyze security scans to identify vulnerabilities and collaborate with engineering teams to mitigate risks.

• Drive successful completion of the system security Assessment & Authorization (A&A) process.

• Validate system security requirements and ensure secure system design and integration.

• Design and implement Information Assurance (IA) strategies across networking, computing, and multi-enclave systems with varying classification levels.

• Assist with the development of security architectures, ensuring compliance with agency security policies and frameworks.

• Enforce secure connections and trusted relationships between external systems and environments.

• Assess and mitigate security threats throughout the system lifecycle.

• Provide technical guidance on risk analysis, security planning, certification, and accreditation.

• Review and improve C&A documentation, ensuring completeness and compliance.

• Apply advanced knowledge of system security engineering, including areas such as:

  • Security design lifecycle

  • Authentication, authorization, and access control

  • Intrusion detection, incident response, and auditing

  • Cryptography and cross-domain solutions

  • Risk management and change control

• Support system authorization efforts in line with DoD RMF, NIST RMF, and related government compliance processes.

Who You Are:

• You have proven experience securing systems and driving them through successful A&A or RMF processes.

• You understand system engineering principles and can apply them to real-world security challenges.

• You’re comfortable operating across technical disciplines and collaborating with a wide range of stakeholders.

• You're passionate about mission-focused cyber defense and want your work to matter.

Why Join Peraton?
Peraton is the partner of choice for government agencies shaping the future of cybersecurity. We offer meaningful work, mission-focused innovation, and the opportunity to protect and advance the critical systems our nation depends on.

Position Requirements:

• Active TS/SCI with polygraph is required.
• Seventeen (17) year’s experience as a SE in programs and contracts of similar scope, type and complexity is required.
• Bachelor’s degree in System Engineering, Computer Science, Information Systems, Engineering Science, Engineering Management, orrelated discipline from an accredited college or university is required.
  • NOTE: Five (5) years of additional SE experience may be substituted for a bachelor’s degree.

Desired Qualifications:

• DoD 8570 compliance with IASAE Level 3, CISSP-ISSEP

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.

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