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**
SOSi is seeking an Cyber Security Administrator to support mission requirements for a structured approach to further develop, integrate, and sustain a scalable, federated data ecosystem that enhances interoperability, governance, and mission-driven analytics for a DoD customer. The primary objective of the program is to bridge the operational gaps between DoD, IC, interagency, and non-traditional international partners to enable real-time information sharing, dynamic data integration, and mission-tailored analytical capabilities.
Essential Job Duties:
- Ensure compliance with DoD cybersecurity mandates, including NIST 800-53 Rev. 5, FedRAMP, Risk Management Framework (RMF), and DoD IL-4/IL-5 security policies.
- Implement security monitoring solutions, conduct vulnerability assessments, and enforce zero-trust security principles.
- Maintain system security documentation, including System Security Plans (SSPs), Security Assessment Reports (SARs), and Plans of Action & Milestones (POA&M), ensuring continuous compliance and audit readiness.
- Lead and track the progress of Authority to Operate (ATO) processes, ensuring all security controls and risk assessments are documented and submitted for approval.
- Submit the Cybersecurity Compliance & Risk Assessment Report, summarizing vulnerability findings, risk mitigation strategies, and security control implementation status.
- Active TS/SCI clearance.
- Bachelor’s degree in Cybersecurity, Information Assurance, or a related field, or;
- five (5) years of equivalent experience in cybersecurity operations
- Managing security configurations, conducting penetration testing, and implementing SIEM solutions (e.g., Microsoft Sentinel, AWS Security Hub).
- Implementing and enforcing security controls for cloud infrastructure, ensuring compliance with DoD security frameworks.
- Performing risk assessments, continuous security monitoring, and developing mitigation strategies in cloud and hybrid environments.
- Administering RBAC and enforcing least-privilege access policies for mission-critical applications.
- Managing the ATO lifecycle, including the preparation of System Security Plans (SSP), Security Assessment Reports (SAR), and Plans of Action & Milestones (POA&M).
- Coordinating with DoD cybersecurity officials to achieve and sustain ATOs for cloud-based and on-premises environments.
Working Conditions:
- Normal office conditions.
Working at SOSi:
All interested individuals will receive consideration and will not be discriminated against for any reason.
Skills Required
- Active TS/SCI clearance
- Bachelor's degree in Cybersecurity, Information Assurance, or related field
- Five (5) years equivalent experience in cybersecurity operations (alternative to degree)
- Knowledge of and compliance with NIST 800-53 Rev. 5, FedRAMP, RMF, DoD IL-4/IL-5 security policies
- Implement security monitoring solutions and SIEM (e.g., Microsoft Sentinel, AWS Security Hub)
- Conduct vulnerability assessments and penetration testing
- Implement and enforce zero-trust security principles and security controls for cloud infrastructure
- Perform risk assessments, continuous security monitoring, and develop mitigation strategies in cloud and hybrid environments
- Administer RBAC and enforce least-privilege access policies
- Manage ATO lifecycle, including preparation of SSP, SAR, and POA&M
- Coordinate with DoD cybersecurity officials to achieve and sustain ATOs
- Prepare and submit Cybersecurity Compliance & Risk Assessment Reports
SOSi Compensation & Benefits Highlights
The following summarizes recurring compensation and benefits themes identified from responses generated by popular LLMs to common candidate questions about SOSi and has not been reviewed or approved by SOSi.
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Healthcare Strength — Health coverage is considered a relative strength, with international plan options and substantial employer contribution that support OCONUS and travel-heavy work. Company materials also highlight a comprehensive medical offering alongside wellness support.
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Retirement Support — A 401(k) program is available, with indications of employer matching though specifics are not publicly detailed. This suggests foundational retirement support for eligible employees.
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Career-Linked Recognition & Rewards — Compensation is often characterized as competitive for cleared, hard‑to‑hire, and certain overseas or mission‑critical roles. Pay levels appear closely tied to contract demands, clearance, and location.
SOSi Insights
What We Do
SOSi is a technology and services integrator focused on the aerospace, defense, and government services industry, described as one of the largest private, founder-owned companies in its sector.
