Andrew ‘John’ Sexton
O’ Fallon,Mo.
Summary
To work in a dynamic environment where I can apply my skills or learn new skills to solve challenges and grow, while making a meaningful contribution to the organization’s goals
Overview
27
27
years of professional experience
Work History
Lead Information Security Engineer / Security Endpoint Engineer
Magellan Health Services
01.2001 - 01.2025
- Enhanced endpoint and server installations, ensuring seamless software upgrades.
- Supported IT managers with technical and operational assistance to optimize performance.
- Educated customers on Magellan Cyber Security policies and best practices.
- Administered Crowdstrike for endpoint antivirus support, resolving security issues efficiently.
- Managed Zscaler for web protection, maintaining secure internet access for users.
- Reviewed Active Directory daily, facilitating user access and termination verifications.
Senior National LAN Administrator
Magellan Health Services
01.1998 - 01.2001
- Enhanced IT operations by providing technical support to Managers and Admins.
- Supported customers with expertise in Windows Server functionalities and troubleshooting.
- Provisioned and built Windows Servers tailored for various departmental needs.
- Delivered 1st and 2nd level support for servers and network workstations.
- Facilitated system administration for server environments including SQL and IIS.
- Managed hardware/software failures, ensuring quick recovery and operational continuity.
Education
01.2006
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St. Louis Community College
St. Louis, Mo.01.1992
High School - undefined
St. Mary's High School
St. Louis, Mo.01.1979
Skills
- Security evaluation
- Identity and Access management
- Cloud security implementation
- Operating system hardening
Timeline
Lead Information Security Engineer / Security Endpoint Engineer
Magellan Health Services
01.2001 - 01.2025
Senior National LAN Administrator
Magellan Health Services
01.1998 - 01.2001
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St. Louis Community College
High School - undefined
St. Mary's High School