Northbrook IL, *****
LinkedIn: Geodel50 – ********@*****.***
GEORGE DELIGIANNIS
Sr. Systems & Networking Professional/Technical Project Manager – CERTIFIED (Cisco & Microsoft) Skills Summary
More than 25 years in Systems Administration & Technical Support and over 15 years of experience in Networking.
Master of Science in Computing & Information Science and Bachelor of Science in Mathematics.
Certified in Cisco (ICND1 & ICND2) and Microsoft (MCSA).
In-depth knowledge of planning, installing, configuring, and optimizing IT infrastructures
Extensive knowledge of Windows Servers 2019/2022 Active Directory, VMWare, SQL(T-SQL), SAN, and Cisco.
Experience in project management, planning, coordinating, and implementing technology projects. Professional Experience
DelNet IT Solutions Inc –Chicago, IL
CONSULTANT SELF-EMPLOYED – SYSTEMS & NETWORK ADMINISTRATION (12/2022 – Present)
Maintain and manage technology onsite/remote for various customers, including Windows Server 2019/2022, AZURE cloud, VMware, PRTG & Veeam
Monitor and perform necessary Network(s) system maintenance and modifications to ensure performance, security, and operational integrity. Maintain Cisco infrastructure/Cisco Umbrella/Cisco Secure Endpoint/DUO. NuMat Technologies — Skokie, IL
CONSULTANT SYSTEMS & NETWORK ADMINISTRATOR (05/2023 – 02/2024)
Design and set up the network in the new office. Set up WatchGuard firewall with VPN access and defined new VLANS. Set up 4 Cisco 9200 switches, and 16 Cisco Access Points and created Access Lists. Argon Medical Devices — Wheeling, IL
SYSTEMS & NETWORK ADMINISTRATOR (11/2019 – 11/2022)
Operating the firewalls (Cisco ASA) and switches (Cisco) for 7 offices worldwide). Create VLAN, access lists, and VPN Tunnels. Monitor for security risks, all Internet connections using SD-WAN & MERAKI devices
Managing multiple vCenters 6.7 (VMARE), MS Windows servers 2019/2022, Active Directory.
Monitoring Nimble Storage, RUBRIK backup, RingCentral, Azure, and Office 365 administration. ABS Associates/Mechdyne Corp — Schaumburg IL
SYSTEMS & NETWORK ADMINISTRATOR (07/2018 – 10/2019)
Third-level Systems Engineer, supporting MS Windows Server 2012/2016, Active Directory, SQL/T-SQL Server, VMware 6.7, Symantec Anti-Virus, Azure/Office 365, and Veritas Backup. Maintained clients’ Cisco hardware. ELLAS TV ONE — Glenview IL
SYSTEMS ADMINISTRATOR/SUPPORT ENGINEER (04/2017 – 07/2018)
Responsible for the Local Area Network/Internet lines, Server administration, and Cisco Router configuration.
Support users of the EllasTV platform, responsible for VOD and troubleshooting firewalls. PC Masters — Business Solutions and Systems (BSS) - Athens, Greece SYSTEMS CONSULTANT (06/2000 – 11/2016)
Provided IT consulting for over 15 years by supporting small and middle-size companies.
Excellent organizational skills aid in writing detailed design and technical documentation. OTE SA/COSMOTE SA — National Telecom Company - Athens, Greece SENIOR SYSTEM ENGINEER/PROJECT MANAGER, Internet Services & IP/SAT TV Department (12/1997 – 07/2016)
Supervised/Project Management on a variety of projects.
Team Leader responsible for 2nd & 3rd level Help Desk support for Systems and Network issues. Dun & Bradstreet — AC NIELSEN - Northbrook, IL USA / Oxford, UK / Brussels, Belgium SENIOR SYSTEMS ANALYST/PROGRAMMER, International Finance (01/1990 – 02/1996)
• Specialized in Office Automation. Responsible for technical assistance to all European countries.
• Traveled to Cyprus and Eastern European countries to introduce & train local personnel in “HYPERION”. Oakton Community College - Des Plaines, IL USA
LECTURER FOR MATH AND COMPUTER SCIENCE DEPARTMENT (06/1991 – 12/1991)
• Taught college courses such as Turbo Pascal, FORTRAN, and “C” to freshman students during the summer and fall semesters. Preparation and evaluation of mid-term and final examinations.