Yanan Liu

IT Operations Manager with 10+ years of experience leading infrastructure, cloud, security, and enterprise IT operations across healthcare, engineering, manufacturing, and multi-site environments. Strong background in Microsoft 365, Azure-adjacent cloud operations, identity/access management, endpoint security, ITSM, vendor management, and operational reliability. Proven ability to lead technical teams, modernize infrastructure, improve uptime, and align IT operations with business objectives in regulated environments.

IT Manager | Health IT & Security - Mission City Community Network - North Hills, CA

(2023-05)

• Lead end-to-end IT operations for multi-site healthcare clinics supporting clinical, administrative, and executive teams.
• Administer Microsoft 365 environment including Exchange Online, SharePoint, OneDrive, identity management, RBAC, and access controls.
• Strengthened organizational security posture through MFA, endpoint protection, encryption, policy enforcement, and HIPAA/NIST-aligned controls.
• Improved network reliability and operational uptime by 40% through monitoring enhancements, redundancy planning, and incident management optimization.
• Served as senior escalation lead for infrastructure, identity, cloud access, and endpoint issues, reducing repeat incidents and operational disruption.
• Led EHR optimization and system integrations that improved provider workflow efficiency and billing accuracy.
• Managed IT vendors, technology contracts, budgeting activities, and operational improvement initiatives.
• Directed and mentored a 5-member IT support team, improving help desk responsiveness by 35%.

IT Manager | Infrastructure & Security Lead - UBTECH RDNA - Pasadena, CA

(2021-07 - 2023-04)

• Led infrastructure and IT operations supporting engineering and R&D environments with 99.9% uptime.
• Managed hybrid infrastructure environments including Windows Server, VMware, networking, and cloud-based services.
• Standardized workstation and server deployment processes, reducing onboarding and provisioning time by 67%.
• Developed and enforced security, backup, and disaster recovery policies to improve resilience and operational continuity.
• Implemented secure remote access and collaboration platforms for distributed technical teams.
• Reduced annual IT operational costs by 15% through vendor negotiations and lifecycle optimization.
• Collaborated with DevOps and engineering teams to support high-performance computing and business-critical workloads.

IT Supervisor | IT Operations & Security - BYD Coach & Bus Inc. - Lancaster, CA

(2016-06 - 2021-07)

• Managed enterprise IT operations supporting 500+ users across manufacturing and operational environments with 99.8% uptime.
• Led server migrations, VPN deployments, ERP upgrades, and global IT operational initiatives.
• Implemented layered security controls resulting in zero major security incidents across three years.
• Administered NetSuite ERP platform and improved operational workflows by 20%.
• Directed disaster recovery planning and testing while consistently meeting RTO/RPO objectives.
• Trained and developed IT support personnel to improve escalation handling, service delivery quality, and response times.

Master of Science - Computer Science - North Carolina A&T University

Bachelor of Science - Computer Science - Tianjin University of Technology