Thomas Osiol

Work History

Del-Air Heating & Conditioning Service, Inc

Sanford, FL

01.2013 - Current

Provide comprehensive IT support and management services for a local client, consisting of 750 users and 75 servers
Manage Help Desk Personal that provide Tier I and Tier II to local and remote users
Responsible for providing escalated support for local and remote users, using Windows 10 and 11, and Office 365
Responsible for managing projects to upgrade corporate network equipment, including core switches, edge switches, and access points
Manage Office 365, Windows 2012 R2, 2016, 2019 and 2022 servers
Maintain backups using Veeam
Currently we use Microsoft Hyper-V to manage multiple virtual servers
Manage Windows 2019 Terminal Servers for seven remote locations to perform day-to-day business activities
Administer Hybrid Active Directory and Microsoft Entra ID for user management and security
Utilize Group Policy Objects and Microsoft Intune to install supported versions of software and secure workstations
Manage KnowBe4 security training
Administer Horizon3 AI pen testing for both internal and external network
Maintain vendor relationships for hardware and software needs of the company

Saralux

Orlando, FL

01.2013 - 12.2013

Provide comprehensive IT support and management services for a local client, consisting of 60 users and 7 servers
Responsible for providing Tier I and Tier II support for local and remote users, using Windows XP, Windows 7, and Office 2007
Manage Exchange 2003, Windows Server 2003, and Windows 2008 servers

Mary Institute /St. Louis Country Day School

Ladue, MO

01.2005 - 12.2012

Support wired/wireless internal and external networks in 11 buildings over 100 acres, with over 1,500 users and 40 servers
Developed and maintain all systems including operating systems, security and network configurations
Configured and manage Active Directory, DHCP, DNS, LDAP, and Group Policy Windows 2008 R2 servers
Collaborated with Director of Technology to create and maintain a backup and disaster recovery plan
Orchestrated migration of 20 physical servers to a VMware virtual environment
Spearheaded project to rebuild and enhance wired and wireless infrastructure campus-wide
Trained and mentored 5 help desk personnel to provide Tier I support of campus systems
Assists and provides second-level support to the help desk in supporting 1500 desktop and laptop users that utilized Windows and Mac operating systems
Partnered with Web Integration Specialist to setup and maintain Apache and IIS web servers
Implemented and maintain SonicWALL E5500 HA Firewalls for network security

NU WAY CONCRETE FORMS, INC.

St. Louis, MO

01.2003 - 12.2005

Maintained and administered computer networks and related computing environments, including computer hardware, systems software, applications software, and all configurations
Diagnosed hardware and software problems, and replace defective components
Perform data backups and disaster recovery operations
Supported 125 desktop users in 5 locations, providing solutions in any issues relating to hardware and software support
Performed efficient installation of 802.11 wireless networks and handled all of the company’s data backup and recovery
Headed and ensured the proper management and administration of HP/UX 11.11i, Windows 2000 and Windows 2003 servers