Information Systems Security Engineer

Leidos

Quick summary

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

Market check

Salary context

Competitive pay

How this pay compares to similar roles

Similar $173k
This role $151k
$96k most similar roles pay here $222k

This role pays less than 62% of similar roles. Most pay $142,450–$204,500 — the shaded band above. At the midpoint, this role pays about $151k versus about $173k 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 201 open roles on FindRole.

Listed pay typically runs $107,900–$195,050 across 194 roles with salary data.

Most-posted roles

View all roles at Leidos

At a glance

TL;DR · Information Systems Security Engineer

Leidos seeks an experienced Information Systems Security Engineer to join their dynamic team supporting a critical customer onsite. This senior-level position involves conducting technical security assessments of computing environments to identify vulnerabilities and recommend mitigation strategies, validating system security requirements, designing secure systems, and integrating IA solutions into operational environments. The ISSE will collaborate with architects and developers to ensure uniform application of agency security policies, support the development of security architectures, and enforce trusted relations among external systems. Key responsibilities include assessing threats, conducting risk analysis, reviewing certification and accreditation documentation, and presenting findings to senior DoD officials. Candidates must hold an active TS/SCI clearance with polygraph, possess a bachelor’s degree in Computer Science or related field plus 7+ years of relevant experience, and be certified with CASP+ or CISSP. Strong knowledge of NIST SP 800 Series, CNSSI 1253, and DoD 8500 is essential, along with hands-on experience with security components like routers, firewalls, IPS, IDS, and network protocols.

What you'll do

  • Validates and verifies system security requirements and designs.
  • Designs and implements information assurance systems for various environments.
  • Integrates security features into operational computing environments.
  • Assists in the identification and implementation of uniform security policies.
  • Conducts risk assessments and mitigation strategies throughout program lifecycle.

What we're looking for

  • Active TS/SCI clearance with Polygraph required.
  • Bachelor’s degree in Computer Science, Information Assurance, or related field and at least 7 years of experience as an ISSE or Network Engineer.
  • CASP+ or CISSP certification required.
  • Strong writing skills and ability to present briefings to senior DoD officials.
  • Experience identifying and documenting security weaknesses in operating systems, software applications, network hardware components, and network architecture design.
  • Knowledge and practical experience with NIST SP 800 Series, CNSSI 1253, and DoD 8500 standards.

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