ISSE: Information Security Engineer (DoD RMF, Cloud)

Peraton; Annapolis (MD); On-site; USD 112,000 - 179,000; Full time

Job summary

Peraton is seeking an Information Systems Security Engineer (ISSE) to support our customer onsite in Annapolis Junction. Responsibilities include designing, implementing, and maintaining enterprise security architecture aligned with NIST RMF, DoD STIGs, CIS benchmarks, and organizational cybersecurity policies.

The role requires hands-on vulnerability management, incident response, and integration of security controls into Windows and Linux environments, cloud, virtualization, and containers.

Qualifications

• Active Top Secret with SCI Eligibility.
• DoD 8570.1-M/8140 IAT Level III certifications (SecurityX CASP, GCIH, CISA, CISSP).
• Experience with networking (TCP/IP, firewalls, VPNs), cloud security (AWS/Azure), Kubernetes, and DevSecOps.
• Experience with using and deploying Tenable Nessus, CyberArk, Trellix, Splunk Enterprise, VMware vSphere, GitLab, Microsoft Windows Server, Red Hat Enterprise Linux and Ubuntu Linux
• Experience with scripting and automation with Powershell, Python, Bash and Ansible.

Responsibilities

• Design, implement, and maintain enterprise security architecture aligned with RMF, DoD STIGs, CIS benchmarks.
• Perform security engineering across SDLC including requirements analysis, design reviews, testing, and accreditation support.
• Implement vulnerability management using Nessus, ACAS, Qualys.
• Integrate cybersecurity requirements into Windows/Linux servers, cloud, virtualization, and containers.
• Support incident response and forensics by analyzing logs and SIEM alerts with Splunk.
• Develop automation scripts in PowerShell, Bash, and Python to streamline remediation and reporting.
• Collaborate with admins, ISSOs, and teams to remediate findings and baseline configs.
• Engineer endpoint protection and hardening with Trellix ePO, host-based firewalls, and app whitelisting.
• Produce security documentation and risk assessments.

Skills

Networking basics

Cloud security

DevSecOps

Security testing

Education

Active Top Secret with SCI Eligibility

DoD 8570.1-M/8140 IAT Level III certifications (SecurityX CASP GCIH CISA CISSP)

Tools

Tenable Nessus

CyberArk

Trellix

Splunk Enterprise

VMware vSphere

GitLab

Windows Server

Red Hat Enterprise Linux

Ubuntu Linux

Ansible

Kubernetes

Job description

Peraton is seeking an Information Systems Security Engineer (ISSE) to support our customer onsite in Annapolis Junction. Responsibilities include designing, implementing, and maintaining enterprise security architecture aligned with NIST RMF, DoD STIGs, CIS benchmarks, and organizational cybersecurity policies.

The role requires hands-on vulnerability management, incident response, and integration of security controls into Windows and Linux environments, cloud, virtualization, and containers.