IASE / ISSE

Leidos

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Quick summary

Work type
On-site
Location
Suitland, MD
Salary
$107,900–$195,050 / yr
Posted
3 days ago
Freshness
Confirmed live yesterday

Market check

Salary context

Competitive pay

How this pay compares to similar roles

Similar $158k
This role $151k
$97k most similar roles pay here $206k

This role pays less than 55% of similar roles. Most pay $123,250–$193,582 — the shaded band above. At the midpoint, this role pays about $151k versus about $158k for comparable roles.

Based on 240 similar postings.

Employer

About Leidos

Leidos is an industry and technology leader serving government and commercial customers with smarter, more efficient digital and mission innovations.

Leidos currently has 252 open roles on FindRole.

Listed pay typically runs $92,300–$166,850 across 234 roles with salary data.

Most-posted roles

View all roles at Leidos

At a glance

TL;DR · IASE / ISSE

IASE / ISSE The IASE / ISSE joins a technical team to serve as a primary security engineering resource for enterprise infrastructure. This role involves hands-on administration, configuration, and hardening of critical systems while troubleshooting complex issues across storage, networking, operating systems, and authentication. The engineer will conduct vulnerability assessments, ethical hacking, and penetration testing while researching cybersecurity tools to strengthen the organization's posture. Key responsibilities include applying DISA STIGs and SRGs, managing secure access via SSH and RBAC, and hardening Unix and Windows environments. Technical requirements include experience with Java, C, or C++ for developing scanning tools, as well as proficiency with SCAP, Trellix/ESS, ACAS, RedSeal, and SteelCloud ConfigOS. The role addresses the challenge of securing mission-critical systems within a complex environment involving DoD RMF, ICD 503, and NIST Risk Management Framework standards.

What you'll do

  • Perform hands-on administration, configuration, and hardening of enterprise infrastructure and systems.
  • Troubleshoot complex security issues across storage, networking, operating systems, and authentication protocols.
  • Conduct vulnerability assessments, ethical hacking, and penetration testing to identify risks.
  • Apply and validate DISA STIGs, SRGs, and other industry security best practices to system configurations.
  • Harden storage protocols and services including NFS, SMB/CIFS, and iSCSI based on security requirements.
  • Configure secure administrative access using SSH, HTTPS/TLS, and role-based access control.
  • Research and evaluate new cybersecurity tools and methodologies to strengthen the organization's security posture.
  • Provide security recommendations during architecture and engineering reviews for new capabilities and infrastructure changes.

What we're looking for

  • Active TS/SCI security clearance.
  • Bachelor's degree in a related field with experience, or Master's degree with experience.
  • 8+ years of security engineering experience including DoD RMF, ICD 503, and NIST Risk Management Framework.
  • Extensive experience with IC, DoD, DISA, and other defense cybersecurity processes and tools.
  • 5+ years of software development experience in Java, C, C++, or other scripting languages.
  • Experience installing and maintaining enterprise network scanning tools like Trellix/ESS, ACAS, RedSeal, and STIG Manager.
  • Extensive experience hardening Unix (Oracle Solaris, RHEL) and Windows environments using STIGs.
  • Active IAT or IAM Level II/III DoD 8140 approved certification, such as CISSP ISSEP or SecurityX.

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