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SAIC Linkedin · Posted 6d ago

Cybersecurity Engineer - ISSO

St Louis

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Indexed description

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.
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