Freelance IT professional

Welcome to my web page!

I’ve been working as a freelance IT professional since 2011.

I identify as a professional troubleshooter.

Available for hire!

KEY features:

Patience
Resourceful
Communication specialist
Adaptable
Lifelong student
Bjj trainee (as a professional troubleshooter it was a natural transition)

Education

Studied Hardware and Software engineering in CEID in University of Patras
Completed a minor in Economics in University of Peloponnese

Certifications

Google IT support

Personal Projects

Pride owner of BjjTribe.eu

Networks

Installation & Configuration

Research and recommend new technologies

Set up routers, switches, modems, and servers

Install and configure network software and operating systems

Establish LANs, WANs, and intranet connections

Connectivity & Cabling

Installing and managing Ethernet and fiber optic cabling

Ensuring proper physical network setup and signal integrity

Troubleshooting connectivity issues related to hardware

Monitoring & Maintenance

Monitor network performance and uptime

Perform routine updates and preventive maintenance

Manage IP address allocation and bandwidth usage

Troubleshooting

Diagnose and resolve connectivity issues

Repair or replace faulty hardware components

Address configuration and compatibility problems

Security Management

Implement firewalls, antivirus, and intrusion detection systems

Monitor for unauthorized access and cyber threats

Apply security patches and updates

Documentation

Maintain records of network configurations and hardware inventories

Log system changes, updates, and troubleshooting steps

User Support & Collaboration

Provide technical support to end users

Train staff on network usage and security best practices

Collaborate with other IT professionals on upgrades and deployments

Network Optimization & Upgrades

Plan and execute network expansions

Optimize performance through configuration tuning

Weapons of choice

HP Juniper

Cisco

Mikrotik (guilty pleasure)

Ubiquiti

Hardware

Hardware Installation & Setup

Proper configuration for user productivity

Assembling and installing desktops, laptops, servers, and peripherals

UPS, NAS, Phone systems, IP communications

Maintenance & Troubleshooting

Diagnosing and repairing faulty components (RAM, hard drives, power supplies, etc.)

Perform routine hardware checks and preventive maintenance

Replacing or upgrading hardware to improve performance

Inventory & Asset Management

Tracking hardware assets using inventory systems

Labeling and documenting devices for auditing and lifecycle management

Managing procurement and disposal of hardware responsibly

Security & Access Control

Securing physical devices against theft or tampering

Implementing hardware-level encryption or security modules (e.g., TPM)

Controling access to sensitive hardware (e.g., servers, storage units)

Peripheral Support

Setting up and maintaining printers, scanners, monitors, and external drives

Troubleshooting peripheral compatibility and driver issues

Software

Installation, Support & Maintenance

Installation and configuration of operating systems, productivity tools, and specialized software to meet your business needs.

Troubleshooting and error resolution for software crashes, bugs, and compatibility issues to restore smooth operation.

Updates and patch management to keep your software secure and up to date with the latest versions.

License management to ensure compliance and avoid unnecessary costs.
User training and guidance to help employees understand and use their software effectively.

Security and antivirus support including installation, configuration, malware removal, and system protection.

Familiar Systems, Applications & Software

Epsilon net Pylon ERP
Elorus
Windows OS
Windows Server OS
Debian & Red Hat Linux Cores
Microsoft SQL
MySQL
PostgreSQL
PHP based Applications
WordPress
Python based Applications
Django
FastApi

Contact

Need help with your tech? Whether it’s troubleshooting, setup, or ongoing support—I’m here to make IT work for you.

Services I Offer:

Small business IT solutions
Network Construction , Maintenance
Hardware Deployment Maintenance
Software Deployment Maintenance
Web Application Development Maintenance

Get in Touch

Name: Efstratios (Your Name)
Phone: +30 694 310 35 32 I am also on Viber
Email: vistakos@gmail.com
Location: Iktinou 3 Argos, Peloponnese, Greece 21232

Rates

I work on an hourly rate that we be agreed per project.