Senior Information Security Architect & Engineer

Saic; Newington (VA); On-site; USD 80,000 - 120,000; Full time

Job summary

SAIC is seeking an experienced Information Systems Security Engineer (ISSE) to support the MAJESTIC JPO by performing advanced security engineering and architectural design for mission-critical IT systems. The ISSE will lead the design, development, implementation, and validation of security architectures, ensuring security controls are integrated across the full system lifecycle.

This on-site role in Springfield, VA requires collaboration with program leadership, ISSMs/ISSOs, and cybersecurity

Qualifications

• 2-5 years of professional experience managing and supporting enterprise IT environments.
• Experience developing SSPs, security diagrams, interface documentation, and control implementation descriptions.
• Knowledge of DISA STIGs, CIS Benchmarks, and secure configuration/hardening standards.
• Active TS/SCI clearance or ability to obtain TS/SCI with CIPoly.

Responsibilities

• Design and engineer secure system architectures, integrating RMF and mission requirements.
• Translate security requirements into technical specifications, models, and design artifacts.
• Select, implement, and validate security controls and technical mitigations.
• Integrate security into system diagrams, data flows, and high-/low-level designs.
• Engineer core security solutions (boundary protection, encryption, IAM, auditing, secure configs).
• Embed security across the full system lifecycle—requirements through sustainment.
• Develop and maintain A&A documentation and support ATO evidence.
• Test and verify security controls across applications, platforms, and networks.
• Conduct risk assessments, threat modeling, and vulnerability analysis; recommend mitigations.

Skills

Security architecture

Threat modeling

Security documentation

Risk assessment

Technical writing

Education

Bachelor's degree in Cybersecurity/CS/IT

Master's degree in related field

High School diploma or equivalent with 6-13+ years experience

Tools

Nessus

ACAS

Qualys

Splunk

SolarWinds

Windows Server

Active Directory

RHEL

Job description

SAIC is seeking an experienced Information Systems Security Engineer (ISSE) to support the MAJESTIC JPO by performing advanced security engineering and architectural design for mission-critical IT systems. The ISSE will lead the design, development, implementation, and validation of security architectures, ensuring security controls are integrated across the full system lifecycle.

This on-site role in Springfield, VA requires collaboration with program leadership, ISSMs/ISSOs, and cybersecurity