SAIC

Technology integrator delivering defense IT solutions

Cyber Security Engineer - Isso

Security Governance, Risk & ComplianceConfirmed live in the last 24 hours

Full-timeSt. Louis, MO, USANo salary listedIn-person

About the Job

Requirements

An active TS/SCI clearance is required, and candidates must be willing and able to pass a polygraph.
A bachelor’s degree and five years of experience, or equivalent, are required.
DoD 8570 IAT II+ certification is required, such as Security+, CySA+, or CISSP.
Hands-on experience with Risk Management Framework, POA&M, and ATO documentation is required.
Experience with ACAS and IAVM tracking is required.
Knowledge of STIGs, patching, and system hardening is required.
Familiarity with NIST publications and incident-response processes is required.
Strong analytical and communication skills are required.

Responsibilities

Execute Risk Management Framework processes for Assessment and Authorization.
Develop and maintain System Security Plans, Plans of Action and Milestones, Security Assessment Reports, and Authority to Operate 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, and 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.

Desired Qualifications

Scripting experience with Python, Java, or React.
DevSecOps pipeline experience.
Linux, Windows, database, or web application experience.
Familiarity with Agile tools such as Jira and Confluence.
Experience with NIST SP 800-171.

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.

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.

About the Company

SAIC

Technology integrator delivering defense IT solutions

SAIC is a technology integrator that supports the U.S. government with engineering and IT services for defense, space, and intelligence missions. Its offerings include integrating complex systems, software, data analytics, cybersecurity, and digital engineering to help national security programs run smoothly. The company operates by combining technical expertise with large-scale government contracts, delivering end-to-end solutions from planning and development to deployment and support. Unlike many firms that focus on a single product, SAIC differentiates itself through a long history of government work, its origins as an employee-owned company, and its growth through strategic acquisitions to broaden capabilities in digital engineering, mission IT, and related services. SAIC’s goal is to enable national defense and intelligence operations by providing the technology and services needed to design, build, and maintain critical systems at scale.

Company size: 10,001+
Company stage: IPO
Headquarters: Reston, VA
Founded: 1969

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