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Cybersecurity Engineer - ISSO

St. Louis, MO, US • Posted 6 hours ago • Updated 6 hours ago

Full Time

On-site

SAIC

Fitment

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Job Details

Skills

Marketing Operations
Cyber Security
Vulnerability Management
Authorization
XACTA
eMASS
Vulnerability Scanning
NIST 800-53
Regulatory Compliance
Collaboration
Security Clearance
PASS
DoD
Security+
CISSP
RMF
Risk Management Framework
Documentation
STIG
Hardening
Publications
Incident Management
Analytical Skill
Communication
Scripting
Python
Java
React.js
DevSecOps
Linux
Microsoft Windows
Database
Agile
JIRA
Confluence
NIST SP 800 Series
Information Technology
Systems Engineering
FOCUS

Marketing Operations
Cyber Security
Vulnerability Management
Authorization
XACTA
eMASS
Vulnerability Scanning
NIST 800-53
Regulatory Compliance
Collaboration
Security Clearance
PASS
DoD
Security+
CISSP
RMF
Risk Management Framework
Documentation
STIG
Hardening
Publications
Incident Management
Analytical Skill
Communication
Scripting
Python
Java
React.js
DevSecOps
Linux
Microsoft Windows
Database
Agile
JIRA
Confluence
NIST SP 800 Series
Information Technology
Systems Engineering
FOCUS

Summary

Job ID: 2615385

Location: St. Louis, MO, US

Date Posted: 2026-08-07

Category: Cyber

Subcategory: Cyberspace Ops

Schedule: Full-Time

Shift: Day Job

Travel: Yes - 10% of the time

Minimum Clearance Required: TS.SCI_wPoly

Clearance Level Must Be Able to Obtain: None

Potential for Remote Work: ORA_ON_SITE

Description

SAIC is seeking a Cyber Security Engineer to support critical DoD and Intelligence Community missions. You will lead assessment, authorization, vulnerability management, and secure operations for classified systems.

Responsibilities

Execute RMF processes for Assessment & Authorization (A&A).
Develop/maintain SSPs, POA&Ms, SARs, and ATO artifacts in XACTA/eMASS.
Conduct vulnerability scanning and track remediation using ACAS/IAVM.
Implement and validate NIST 800-53 and CNSSI 1253 controls.
Support hardening, patching, STIG compliance for Windows, Linux, and networks.
Monitor systems and assist with incident response.
Evaluate security impacts of system changes.
Collaborate with engineering, administration, and DevSecOps teams.

Qualifications

Required Qualifications

Active TS/SCI clearance. Candidates must have this clearance to be considered.
Willing and able to pass a polygraph.
Bachelor's degree + 5 years of experience (or equivalent).
Active or Current TS/SCI.
DoD 8570 IAT II+ (Security+, CySA+, CISSP, etc.).
Hands-on RMF, POA&M, ATO documentation experience.
Experience with ACAS, IAVM tracking.
Knowledge of STIGs, patching, system hardening.
Familiarity with NIST publications and incident-response processes.
Strong analytical and communication skills.

Desired Qualifications

Scripting experience (Python, Java, React).
DevSecOps pipeline experience.
Linux/Windows, databases, or web app experience.
Familiarity with Agile tools (Jira, Confluence).
Experience with NIST SP 800-171.

Employers have access to artificial intelligence language tools (“AI”) that help generate and enhance job descriptions and AI may have been used to create this description. The position description has been reviewed for accuracy and Dice believes it to correctly reflect the job opportunity.

Dice Id: 10111346
Position Id: 2615385
Posted 6 hours ago

Company Info

About SAIC

SAIC® is a premier mission integrator focused on advancing the power of technology and innovation to serve and protect our world. Our robust portfolio of offerings across the defense, space, intelligence, and civilian markets includes secure high-end solutions in mission IT, enterprise IT, engineering services, and professional services. We integrate emerging technology, rapidly and securely, into mission critical operations that modernize and enable critical national imperatives.

We are approximately 23,000 strong; driven by mission, united by purpose, and inspired by opportunities. Headquartered in Reston, Virginia, SAIC has annual revenues of approximately $7.3 billion. For more information, visit saic.com. For ongoing news, please visit our newsroom.

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