Role Overview
SOSi is hiring a senior-level Cyber Security Engineer III. This is a contract role in Washington. Part of SOSi's Security hiring. Full responsibilities, required qualifications, and the apply link are listed in the description below.
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Job Description
Company Description
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.
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
Qualifications
· 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: One of: CISSP; CCSP; CCNA; CISSP-ISSAP; CISSP-ISSEP; GIAC; SSCP; Security+
- 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.
Frequently Asked Questions
How do I apply for the Cyber Security Engineer III position at SOSi?
Use the Apply button above to submit your application directly to SOSi. Most applications take less than 5 minutes if your resume and contact details are ready, and you'll be routed to the employer's official application system to finish.
Where is the Cyber Security Engineer III position at SOSi located?
This position is based in Washington. SOSi has not indicated remote or hybrid options for this role, so candidates should plan for on-site work.
What does a Cyber Security Engineer III at SOSi earn?
SOSi has not disclosed a salary range in this posting. Many employers share specifics later in the interview process; you can also ask during a recruiter screen if compensation transparency is important to you.
When was the Cyber Security Engineer III role at SOSi posted?
This role was posted on April 23, 2026 (53 days ago). It's still listed as actively hiring; we re-confirm openings against the source system multiple times per day and remove closed roles.
How much experience does the Cyber Security Engineer III role at SOSi require?
This is a senior-level position. Most senior roles call for 5+ years of directly relevant experience. SOSi lists their specific requirements in the description below, so review the must-have qualifications closely before applying.
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