Gregory Charismiadis Email & Phone Number

Athens, Attiki, Greece

Athens, Greece

➢ Perform on-site technical support at the company’s largest and most strategic accounts – leading IT companies. Oversee and manage the resolution of critical technical issues. ➢ Trusted advisor for customers on hardware issues, advocating customer’s priorities internally, working closely with the infrastructure teams on escalated technical issues.

Athens, Greece

➢ Performed on-site troubleshooting and hardware/network support for telecommunication and banking clients (Alpha Bank, Eurobank, Vodafone, Cosmote, Wind) in Greece and abroad.➢ Communicated with key clients to investigate technical problems, take corrective actions, and to ensure daily smooth operations of businesses. ➢ Strengthened technical expertise on mission critical platforms and servers (HP 9000 servers, Mid-range servers, Superdome, Itanium servers, StoreOnce, Proliant), storages (XP, EVA, MSA, 3PAR), and NonStop (bank ATM systems), Blade mission critical systems. ➢ Supported and configured High Availability MC Service Guard Environment (HPUX 11i), Brocade Family of Switches, Optical/Tape Libraries, and provided Virtualization Server Environments Support (VMware, IntegrityVM) to key HP clients.➢ Contributed in installing new network, computer and server hardware for clients, creating new facilities, and providing technical consulting to clients. ➢ Generated technical reports of projects completed and reported to Mission Critical Support Department Supervisor. Provide mentoring to 2 new hires. ➢ Identified and took corrective actions of on-site hardware failures for UNIX (HP-UX) systems.

Athens, Greece

Athens, Greece

➢ Performed technical support, design, installation, maintenance and troubleshooting for over 30 ISP servers (Sun Solaris and Microsoft Windows NT/2000).➢ Maintained software platforms such as: Oracle 8i, 9i databases, Solaris 2.6, 2.8 platforms, SUN Cluster 3.0, SUNOne products, iplanet products.➢ Configuration and testing of new hardware and software. ➢ Managed the daily data backup and retrieval scheme, applied patches in accordance with company's procedures, supported end-users and network administrators.

Athens, Greece

➢ Installed and provided hands-on hardware and local area networks troubleshoot and maintenance support to companies including Shell Hellas, Ε-motion, Macedonia-Thrace Bank, Piraeus Bank; identified problems and took corrective on-site action.➢ Supported Microsoft products (Windows 95/98, NT 4.0, Microsoft Office Professional 97/2000), Hewlett Packard (Workstations, Printers, Scanners, Print Servers), Compaq (Workstations & Servers, Laptops).