Bio
NIKOLAOS ILIOPOULOS
Linux SysAdmin | Web Developer | DevOps

๐ Location: Athens, Greece
๐ง Email: nicholas@nnyx.io
๐ Personal Website: nnyx.io
๐ Dev Website: nnyx.dev
๐ผ LinkedIn: linkedin.com/in/nicholas
๐ GitHub: github.com/r41nm4k3r
๐จโ๐ป Summary
Experienced Linux System Administrator and WordPress Web Developer with a passion for automation, server optimization, and custom web development. Skilled in maintaining high-performance, secure, and scalable infrastructures. Enthusiastic about automation, vitualization, and cloud technologies.
๐ก Technical Skills
Linux Administration
- โน RedHat | Centos | Ubuntu
- โน Linux ARM
- โน L.F.S
Web Development
- โน WordPress | WooCommerce | Hugo
- โน Website Migration
- โน CPanel | Plesk
- โน MySQL | MariaDB
- โน Nginx | Apache | Traefik
Server Management
- โน Configuration
- โน Optimization
- โน Migration
- โน Remote Management
- โน Backup & Restore
Virtualization
- โน VMware ESXi
- โน Proxmox VE
- โน Docker | Podman
- โน LXC Containers
Security & Hardening
- โน Firewall Configuration
- โน SSL/TLS Implementation
- โน VPN Configuration
Automation
- โน Bash Scripting
- โน Ansible
- โน Python
- โน Terraform
๐ผ Professional Experience
Junior I.T.
โก PT Systems โข 2015 to 2018
๐ [Athens]
- Maintained and configured LAMP/LEMP stacks for hosting multiple websites.
- Managed databases (MySQL, PostgreSQL) and optimized queries for performance.
- Ensured server uptime and availability through monitoring and proactive maintenance.
- Provided technical support and troubleshooting for clients and team members.
Senior Linux System Administrator
๐ Freelancer โข 2018 to Present
- Managed and optimized Linux-based web servers for improved uptime and security.
- Developed and maintained custom WordPress themes and plugins for high-performance websites.
- Migrated WordPress sites to self-hosted infrastructure with almost zero downtime
- Automated deployment processes using Ansible.
- Implemented CI/CD pipelines for smooth development and staging environments.
- Conducted security audits and applied best security practices for WordPress and Linux servers.
- Reduced server costs by 90% through containerization and auto-scaling
WordPress & Hugo Developer
๐ Freelancer โข 2010 to Present*
- Customized and optimized WordPress themes
- Ceeated, Customized and optimized Hugo themes
- Improved site performance by 85% through caching optimization
- Configure properly custom e-mail adresses
NnyX
๐ Startup W.i.P โข 2025*
- Providing digital consulting
- Offering IT services
- Guidance for digital wellbeing
๐ Education & Certifications
๐ Red Hat Certified Engineer (RHCE)
๐ Red Hat Enterprise Linux Automation with Ansible
๐ CCNA
๐ CCNA Sec
๐ VMware vSphere 6.7 Foundations
๐ Notable Projects
๐น WordPress Performance Optimization
- Implemented caching strategies for improved load times.
- Configured Cloudflare and Nginx reverse proxy for better security and performance.
๐น Automated Server Provisioning
- Developed Ansible playbooks to automate server configurations for staging and production environments.
- Integrated Docker for containerized deployment of web applications.
๐น Security Hardening for Web Servers
- Conducted penetration testing and security audits for Linux-based web servers.
- Implemented fail2ban, ModSecurity, and SSL/TLS hardening.
๐ Tools & Technologies
๐ Linux, WordPress, Apache, Nginx, MySQL, PostgreSQL, Docker, Ansible, Cloudflare, Git, Bash, Python.
๐ References available upon request
๐ Download PDF CV: johndoe-cv.pdf