# IORDANIS KOSMIDIS - IT Support Specialist and Network Administrator
Source: https://hello.cv/iordaniskosmidis
Athens

## Links
- Email
- Phone

## About
Detail-oriented IT Support Specialist and Network Administrator with over 5 years of experience in telecommunications, retail, and IT services, excelling in Tier 2 and 3 technical support. Proven ability to troubleshoot complex hardware, software, and network issues, ensuring seamless operations and enhanced security. Eager to leverage comprehensive system and network administration expertise to drive infrastructure reliability and efficiency in a dynamic IT environment.

## Work
### IT Support Specialist | Avance S.A.
Led comprehensive IT support and network administration for a national telecommunications provider, ensuring robust system performance and security across multiple sites.
- Engineered and deployed extensive network infrastructure across Greece, configuring Cisco firewalls, Meraki devices, Site-to-Site VPNs, and VLANs to ensure secure and reliable connectivity for all branch operations.
- Administered Microsoft 365 environments, Active Directory, and Bitdefender GravityZone, enhancing system security and managing user access for optimal operational efficiency.
- Provided expert Tier 2/3 technical support, diagnosing and resolving complex hardware, software, and network issues for Windows Server and Windows 10/11 systems, minimizing downtime.
- Implemented and maintained specialized systems including cloud telephony (Microbase/Mini Client) and IP CCTV (Nvms), improving communication and surveillance capabilities.
- Managed physical network infrastructure, including switch configuration, wiring, and rack setups, while also deploying and configuring workstations for new employees.
### Customer Care and Tech Support | Teleperformance Greece (LG)
Provided specialized technical and customer support for LG product lines, resolving diverse issues and enhancing client satisfaction for a leading BPO provider.
- Delivered expert technical support for a wide range of LG products, including televisions (WebOS), washing machines, refrigerators, and dishwashers, resolving complex operational issues.
- Managed and resolved high volumes of customer complaints, consistently achieving positive outcomes and improving customer retention rates.
- Utilized advanced diagnostic tools and troubleshooting procedures to efficiently resolve technical issues, ensuring minimal disruption for customers.
### Technical Support Expert | Teleperformance Greece (Lenovo Group)
Served as a Technical Support Expert for Lenovo products, efficiently resolving complex software and hardware issues while maintaining high customer satisfaction.
- Provided comprehensive technical support for Lenovo products, including software diagnostics, Windows OS troubleshooting, and remote assistance for laptops and desktops.
- Managed high-volume technical support calls, consistently meeting response time targets and ensuring timely resolution of customer queries.
- Resolved complex technical issues through advanced diagnostic tools and troubleshooting, minimizing customer downtime and enhancing user experience.
### Ecommerce Employee | IKEA
Managed e-commerce order fulfillment and customer service for IKEA Eshop, optimizing stock control and supporting sales operations.
- Controlled IKEA Eshop orders, managing the end-to-end fulfillment process to ensure timely delivery and customer satisfaction.
- Provided e-customer service, addressing inquiries and resolving issues to maintain a positive online shopping experience.
- Managed stock control and inventory, ensuring product availability and efficient sales operations.
### Sales and Stock Control Employee | IKEA
Executed daily stock management and customer service tasks, ensuring efficient retail operations and a positive shopping experience.
- Managed daily orders and replenished stock on the sales floor, maintaining product availability and presentation standards.
- Provided direct customer service, assisting shoppers and resolving inquiries to enhance their retail experience.
- Managed time efficiently to complete all tasks within deadlines, contributing to smooth store operations in a fast-paced environment.
### Cashier and buffet employee | IKEA
Handled cash transactions and supported buffet operations, ensuring financial accuracy and high standards of customer service.
- Managed cash drawers, meticulously counting money at the beginning and end of shifts to ensure 100% accuracy in daily transactions.
- Provided customer service and supported food production in the buffet, maintaining hygiene standards and operational efficiency.
- Contributed to a positive customer experience by efficiently processing payments and assisting with inquiries in a busy retail food environment.

## Education
### Cisco Networking Academy | Network And System Administration
- Network and Security systems
### IEK Aigaleo | Information Technology
### Vocational Lyceum | Computer and Network Engineering – IT Support

## Languages
- English

## Certificates
### Certified Network Administrator, Cisco (CCNA)
Cisco | 2025-05-01
### Certified IT Support
Google Coursera | 2023-01-01

## Skills
### System Administration
- Microsoft 365
- Active Directory
- ERP
### Network Configuration
- Cisco Firewalls
- Meraki
- Site-to-Site VPN
- VLAN
- Switches
- TCP/IP
### Analytical Thinking
- Data Analysis
- Problem Identification
### Technical Troubleshooting
- Diagnostics
- Issue Resolution
### Desktop Support
- Troubleshooting
- Hardware
- Software
### User Support
- Customer Service
- Technical Assistance
### Decision-Making
- Problem Solving
- Critical Thinking
### Hardware Upgrades & Repair
- PC Repair
- Laptop Repair
- Component Replacement
### Remote Support
- Remote Desktop
- TeamViewer
### Ticket Support Systems
- Ticket Management
- Service Desk
### Security Administration
- Bitdefender GravityZone
- Patch Management
- Vulnerability Management
### Cloud Telephony
- Microbase
- Mini Client
- Contact Center Setup
### IP CCTV Systems
- Nvms Configuration
- Surveillance Systems
### Operating Systems
- Windows Server
- Windows 10/11
### Software Installation & Configuration
- Application Deployment
- Workstation Setup

## Interests
### Video Gaming
### Sports
### Music
### Movies
### Driving
### Socializing

## Source
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