Cyber Security Administrator

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. **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.