Junior ISSE: Security Engineer, Systems & Cloud

Peraton; Maryland; On-site; USD 112,000 - 179,000; Full time

Job summary

Peraton is seeking an Information Systems Security Engineer (ISSE) to support DoD IT architecture at our Annapolis Junction site. The roleDesigns, implements, and maintains enterprise security aligned with NIST RMF, STIGs, and CIS benchmarks, with hands-on vulnerability management and incident response.

The ideal candidate holds TS/SCI eligibility, DoD 8570.1-M/8140 IAT III, and has experience with Nessus, CyberArk, Splunk, and cloud security.

Qualifications

• Active Top Secret with SCI eligibility required.
• DoD 8570.1-M/8140 IAT Level III certification.
• Experience with networking, cloud security, Kubernetes, and DevSecOps.
• Proficiency with Nessus, CyberArk, Trellix, Splunk, VMware vSphere, GitLab, Windows Server, RHEL/Ubuntu.
• Scripting and automation with PowerShell, Python, Bash, Ansible.

Responsibilities

• Design, implement, and maintain secure enterprise architecture per NIST RMF and STIGs.
• Perform security engineering across SDLC with requirements analysis and reviews.
• Run vulnerability mgmt using Nessus, ACAS, Qualys; remediate findings.
• Integrate security into Windows/Linux, cloud, virtualization, containers.
• Support incident response and forensics using Splunk Enterprise.
• Develop automation scripts to streamline security tasks.
• Collaborate with admins, ISSOs, and apps teams to remediate findings.
• Perform security impact analysis for changes and deployments.
• Engineer endpoint protection with Trellix ePO; enforce baselines.
• Evaluate cybersecurity tools to improve posture and monitoring.
• Produce security docs, diagrams, SOPs, risk reports.
• Administer CyberArk EPV/PVWA/CPM/PSM.

Skills

Networking

Cloud security

Kubernetes

DevSecOps

NIST RMF

DoD STIGs

Security frameworks

Powershell

Python

Bash

Ansible

Tenable Nessus

CyberArk

Splunk Enterprise

VMware vSphere

Windows Server

Linux

Acumen with CI/CD tools

Education

BS/BA

Tools

Trellix ePO

ACAS

Qualys

PowerShell

Job description

Peraton is seeking an Information Systems Security Engineer (ISSE) to support DoD IT architecture at our Annapolis Junction site. The roleDesigns, implements, and maintains enterprise security aligned with NIST RMF, STIGs, and CIS benchmarks, with hands-on vulnerability management and incident response.

The ideal candidate holds TS/SCI eligibility, DoD 8570.1-M/8140 IAT III, and has experience with Nessus, CyberArk, Splunk, and cloud security.