Mubarick Alhassan

About Mubarick Alhassan

Mission-driven Cybersecurity Engineer with 10+ years of progressive experience supporting U.S. Department of Defense (DoD), military, federal, and civilian organizations. Specialized in securing classified and unclassified systems through rigorous application of RMF, NIST 800-53, DISA STIGs, and DoD A&A frameworks. Proven track record in executing cybersecurity strategies across NIPR and SIPR environments, leveraging technologies such as ACAS, eMASS, Trellix, McAfee ENS, Nessus, and Splunk to conduct system hardening, POA & M management, threat detection, and vulnerability remediation. Demonstrated expertise in Zero Trust Architecture, secure Active Directory design, and endpoint protection aligned with mission-critical requirements and DoD compliance standards. Led initiatives in regulatory compliance (HIPAA, ISO 27001), infrastructure hardening, and encryption enforcement in hybrid and enterprise environments. Recognized for bridging defense-grade cybersecurity practices with business resilience needs, ensuring system integrity, audit readiness, and operational continuity across diverse operating environments.

Experience

1. Information Security Specialist

   Us Army

   Feb 2023 — Present · Fort Bliss, TX, US

   Conducted regular audits of IT infrastructure to ensure adherence to established cybersecurity policies and best practices.• Utilize ACAS and SCAP tools to identify, analyze, and remediate system vulnerabilities across classified (SIPR) and unclassified (NIPR) networks.• Manage security documentation in eMASS, including Security Assessment Reports (SAR), Security Control Traceability Matrices (SCTM), and POA & Ms.• Perform system hardening based on DISA STIGs and ensure compliance through automated scripts, GPO enforcement, and baseline imaging.• Administer endpoint protection using Trellix/McAfee ENS and Host Intrusion Prevention Systems (HIPS), implementing DoD-compliant data loss prevention strategies.• Collaborate with cybersecurity leadership, ISSOs, and system administrators to ensure mission systems meet DoD cybersecurity requirements.• Drove adoption of security information and event management (SIEM) systems for real-time security monitoring.• Conducted vulnerability scans, compliance audits, and remediation on Army systems using ACAS, and SCAP tools.• Performed system hardening based on STIG benchmarks and oversaw secure baselines across NIPR and SIPR networks.• Managed Active Directory and DNS for secure authentication, access control, and group policy enforcement.• Conducted system hardening using NIST, and DoD STIG guidelines.• Led regular audits to validate security posture and update POA & Ms.• Utilized Splunk SIEM for real-time monitoring, log analysis, and detection of anomalies, supporting rapid incident response and forensic investigations.• Performed comprehensive system hardening of Windows workstations and servers using STIGs, CIS benchmarks, and PowerShell automation.• Conduct continuous monitoring, vulnerability scans, and security assessments on Army systems in accordance with DoD Risk Management Framework (RMF) and NIST 800-53 controls.

Education

• University of Havana

  Doctor of Medicine - MD, GP

  2012 — 2019

• Westcliff University

  Master's degree, Business Administration Concentration in Cybersecurity