James LeBlanc

• Led architecture-aligned delivery of secure, networked systems across USMC Programs of Record, coordinating engineering, cybersecurity, and integration teams within classified, compliance-driven environments.
• Managed full system lifecycle including design coordination, integration, testing, fielding, and sustainment of infrastructure-dependent capabilities.
• Directed implementation and enforcement of Group Policy Objects (GPOs) to maintain secure configurations, access controls, and compliance with DoD security baselines.
• Oversaw administration of mixed Windows Server and Linux (RHEL 7) environments, supporting secure operations, patching coordination, and system sustainment.
• Leveraged PowerShell scripting to automate administrative tasks, support configuration validation, and improve operational efficiency.
• Directed efforts supporting secure system baselines, patching strategies, and configuration management, aligning with NIST 800-171 and RMF controls.
• Oversaw delivery of quarterly system and software updates, ensuring compliance with security requirements and operational timelines.
• Facilitated resolution of infrastructure, network, and system integration challenges across technical teams.
• Provided executive-level reporting on system risk posture, vulnerabilities, and remediation efforts.

Secure Enclave / Virtual Environment Project

• Led the design and sustainment of a secure, enclave-style virtual environment enabling controlled access to engineering drawings, technical documentation, and historical repositories.
• Architected and enforced layered security controls including firewalls, MFA, MAC filtering, and role-based access models, ensuring protection of sensitive data.
• Implemented GPO-based access control and system hardening policies to enforce secure user and system behavior.
• Integrated and managed platforms including ACAS, SCAP compliance tools, and Git-based repositories, supporting secure operations and audit readiness.
• Supported network segmentation, access boundary enforcement, and secure data flow controls, aligning with CUI handling and enclave security principles.
• Enhanced configuration control, auditability, and traceability, improving compliance posture and operational visibility.

Technical Environment: Windows Server (Active Directory, GPO Management), Linux (RHEL 7), ACAS, SCAP Compliance Tools, HBSS, PowerShell Scripting, Git (version control & issue tracking), Network Security (firewalls, MFA, MAC filtering), Network Segmentation, Access Control Policies, Configuration Management, Secure DoD Network Architectures

• Led cybersecurity operations supporting USMC systems within RMF and ATO frameworks, ensuring compliance with NIST-based security controls.
• Developed and maintained GPO strategies to enforce system hardening, access controls, and enterprise security policies.
• Conducted vulnerability management operations using ACAS and HBSS, identifying, prioritizing, and remediating system vulnerabilities.
• Supported administration and security of Windows and Linux (RHEL 7) environments, ensuring compliance and operational integrity.
• Utilized PowerShell scripting to automate security checks, streamline reporting, and support remediation efforts.
• Supported system integration, testing, and deployment of network-connected infrastructure and software systems.
• Provided SME guidance on secure system architecture, SIGINT systems, and operational integration.
• Performed security audits, compliance validation, and risk assessments, contributing to system accreditation.
• Delivered training and mentorship, improving team capability and operational effectiveness.

• Led SIGINT operations supporting networked intelligence systems in operational environments.
• Advised leadership on system capabilities, integration, and operational risk.
• Developed and delivered technical training programs, including curriculum and evaluation methods.
• Operated and maintained specialized communication and collection systems.