Cybersecurity Security Engineer III
SOS International· enterprise· Defense· Jun 4, 2026 · 5mo agoPosted 145 days ago
Washington, DC, United States
Hybrid
Full-time
Mid
$100K–$158K est.
Before you apply
Ghost Signal:
Open since June 4, 2026 — 145 days, and still accepting applications.
Job description
*** This position is contingent upon contract award ***
Overview
SOSi is seeking a Cybersecurity Security Engineer III to support cybersecurity engineering activities in alignment with our customer. This role is responsible for supporting security architecture, engineering, technology integration, and modernization initiatives across enterprise cyber defense environments, including Zero Trust, cloud security, DevSecOps, and emerging technologies.
Responsibilities
· Support cybersecurity engineering and security architecture activities across enterprise environments
· Support design and integration of Zero Trust Architecture (ZTA) capabilities and security controls
· Develop and support technology roadmaps, engineering recommendations, market research, and proofs of concept
· Support engineering and integration of cloud security, secure authentication, and single sign-on (SSO) capabilities
· Support DevSecOps practices and secure technology integration activities
· Support security engineering activities involving vulnerability scanning tools, cyber defense technologies, and enterprise security platforms
· Support engineering and integration of AI/GenAI-related security capabilities
· Support post-quantum cryptography concepts, cryptographic inventory activities, and PQC-enabled protocols
· Support development and implementation of security CONOPS and engineering documentation
· Use scripting and automation to support engineering, integration, and security operations activities
· Experience:
• Ten (10) or more years of cybersecurity engineering and/or project management experience
• Two (2) or more years of leadership experience
• Experience supporting cybersecurity design and integration
• Experience supporting Zero Trust Architecture (ZTA)
• Experience developing technology roadmaps, conducting market research, and supporting proofs of concept
• Experience supporting security architecture and CONOPS
• Experience supporting cloud security
• Experience supporting AI/GenAI security integration
• Experience supporting DevSecOps
• Experience supporting vulnerability scanning tools
• Experience supporting secure authentication and SSO
• Experience supporting post-quantum cryptography concepts and PQC-enabled protocols
• Experience with scripting and automation
· Education:
• Bachelor’s Degree in engineering, information systems, cybersecurity, or equivalent experience as defined by role requirements
· Certifications:
At least one of:
• Security+
• CCNA
• SSCP
And one of:
• CISSP
• CISSP-ISSAP
• CISSP-ISSEP
• CCSP
• GCIA
• GDSA
• GCCC
• GCPN
• GCIH
• Clearance/Suitability : Secret (eligible)
Work Environment
• Normal office conditions with potential to perform duties in deployed locations.
• Core hours of operation are Monday through Friday, 0600 – 1700.
• May be requested to work evenings and weekends to meet program and contract needs.
Working at SOSi
All interested individuals will receive consideration and will not be discriminated against for any reason.
Application prep
Use the role’s language and application details while tailoring your materials.
Keywords to mirror
ai
- Platform
- smartrecruiters
- Effort
- medium
Benefits
Benefits detected in the listing.
Pto