Cybersecurity Security Engineer III
- Location
- Washington, DC
- Listed
- 3 days ago
About the role
- 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
Qualifications & Requirements
- 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)
Additional Information: 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.
About the Company
Founded in 1989, SOSi is among the largest private, founder-owned technology and services integrators in the defense and government services industry. We deliver tailored solutions, tested leadership, and trusted results to enable national security missions worldwide.
From SOSi's careers page, first listed on Rolev.ai on November 6, 2026. Rolev.ai is not the employer.
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Common questions
Where is the Cybersecurity Security Engineer III job at SOSi located?
This Cybersecurity Security Engineer III position at SOSi is located in Washington, DC. Always check SOSi's application page for specific state eligibility or relocation policies.
How do I apply for the Cybersecurity Security Engineer III position at SOSi?
This listing links directly to SOSi's SmartRecruiters application page. You can apply directly on SOSi's site, or use Rolev.ai to check your resume fit, generate a zero-hallucination tailored resume and cover letter for this posting, and autofill the SmartRecruiters application form in 1 click with the Rolev.ai Chrome extension. You always review the form and press Submit yourself.