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Jobs / Security Engineer in United States of America
25 days ago
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SI
Science Applications International·25 days ago
25 days ago

Information Systems Security Engineer (ISSE) Architect

Springfield, United States of AmericaOn-siteMid · 2-5 yearsSecurity Engineer

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Top 10% of NextRaise users matched against Security Engineer roles in United States.

Must-have skills for this role

  • nist 800-53
  • rmf
  • security engineering
  • architectural design

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What you'll do

  • 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.
  • Assess security impacts of system changes, upgrades, and new integrations.
  • Apply DISA STIGs, CIS Benchmarks, and maintain hardened configuration baselines.
  • Design monitoring architectures for SIEM, detection rules, and audit/log collection.

What they're looking for

  • Experience in Information Systems Security Engineering (ISSE)
  • Knowledge of federal security requirements, including NIST 800-53, RMF, and customer-specific A&A frameworks such as ICD 503 and DAAPM
  • Ability to perform advanced security engineering and architectural design
  • Ability to work on-site in Springfield, VA

Summarised by NextRaise from the employer’s description, which follows in full below.

Full description from employer

SAIC is seeking an experienced Information Systems Security Engineer (ISSE) to support the MAJESTIC Joint Program Office (JPO) by performing advanced security engineering and architectural design for mission‑critical IT systems. 

In this role, the ISSE will lead the design, development, implementation, and validation of security architectures, ensuring all security controls are integrated into system engineering processes across the full lifecycle—from requirements development to deployment and sustainment. 

The ISSE will collaborate closely with program leadership, system owners, developers, ISSMs/ISSOs, enterprise architects, and cybersecurity operations teams to ensure systems meet federal security requirements, including NIST 800‑53, RMF, and customer‑specific A&A frameworks such as ICD 503 and DAAPM. 

This role requires on-site support in Springfield, VA. 

 Key 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. 
  • Assess security impacts of system changes, upgrades, and new integrations. 
  • Apply DISA STIGs, CIS Benchmarks, and maintain hardened configuration baselines. 
  • Design monitoring architectures for SIEM, detection rules, and audit/log collection. 
  • Support incident response with architectural forensics and remediation guidance. 
  • Collaborate with developers, integrators, administrators, and cybersecurity teams. 
  • Present security engineering findings and architecture recommendations to leadership. 
  • Produce technical documentation, diagrams, reports, SOPs, and design artifacts.  

Company

SI
Science Applications International
Springfield, United States of America

Company facts come from this company's own listings. We only show what the postings themselves carry.

Sourced from Science Applications International's careers site·first seen 22 Sept 2026·last verified 22 Sept 2026·How we source jobs

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