Cyber Security Administrator

• 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).

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.