Isti Csémi

$ whoami → DevOps & Cybersecurity Enthusiast

MSc Student | Technical Support Coordinator at Kontentino | Building secure infrastructure, deploying honeypots, and breaking systems to make them stronger.

3
Servers
15+
Services
2
Years Exp
isti@secpro:~
$ cat profile.json
{
"name": "István Csémi",
"role": "Technical Support Coordinator",
"company": "Kontentino",
"education": "MSc @ J. Selye University",
"focus": [
  "Self-Hosted Infrastructure",
  "Honeypot Deployment",
  "Penetration Testing"
 ]
}
$ _

Self-Hosted Services

Production environments running on my personal VPS and home server infrastructure.

SecPro Production

VPS • Docker Containers

Main production server hosting various self-hosted services with automated container management and monitoring.

E-mail service Vaultwarden Uptime Kuma WireGuard + AdGuard Watchtower Nginx Proxy Manager
All Systems Operational
secpro.online

Honeypot Server

VPS • Security Research

Dedicated honeypot infrastructure for threat intelligence gathering and attack pattern analysis.

Cowrie SSH Honeypot T-Pot CrowdSec + Bouncer
Previously: Fail2ban + AbuseIPDB
Monitoring Active

Home Lab

Local Server • Media & Storage

Personal home server for media streaming, cloud storage, and security practice environments.

Plex Media Server Nextcloud Kali Linux VM Pihole Random dockers
Running

CTF & Practice

Security Training

Active participation in capture-the-flag challenges and security practice platforms.

HackTheBox HackThisSite
Ongoing Practice

Technical Arsenal

Technologies and tools I work with professionally and in personal projects.

Security & Pentesting

Kali Linux Metasploit Nmap Wireshark Burp Suite Honeypots CrowdSec Fail2ban

Infrastructure & DevOps

Docker Proxmox VMware Nginx Apache VPS Management SSL/TLS Certificates Dovecot & Postfix Replication

Operating Systems

Linux (Ubuntu/Debian) Kali Linux Raspberry Pi

Programming & Scripting

Python Bash Perl JavaScript SQL HTML & CSS

Networking

TCP/IP DNS Network Protocols VPN (WireGuard/OpenVPN)

Tools & Platforms

Git Zendesk Slack Asana Testing

Languages

🇭🇺
Hungarian
C2 - Native
🇸🇰
Slovak
C1 - Advanced
🇬🇧
English
B2 - Upper Intermediate
🇨🇿
Czech
Passive
Understanding through Slovak

Career Timeline

My professional journey in tech and customer support.

May 2025 - Present

Technical Support Coordinator

Kontentino

Reproducing and analyzing customer-reported issues through manual testing. Collaborating with developers and CSM team to identify root causes and improve system reliability. Working with logs, Slack, and Asana for coordination.

Testing Log Analysis Slack Asana Problem Solving
May 2024 - May 2025

Customer Support Specialist

Tesco Business Solutions

Handled diverse customer inquiries with efficient problem-solving using Zendesk and Cisco systems. Developed strong communication skills while maintaining high satisfaction rates.

Zendesk Cisco Customer Service Problem Solving
July 2020 - 2024

Technical Support Specialist

Deutsche Telekom Hungary

PC installations and configurations, user permission management, server setup, network configuration, and log analysis for issue resolution.

Server Admin Networking Troubleshooting Hardware Installation
July 2022 - 2024

System Administrator

Primary School Support

Level 0 support handling software/hardware installations, user permissions, and network troubleshooting in an educational environment.

Software Installation Hardware Installation Help Desk

Academic Background

🎓

Master's Degree (In Progress)

J. Selye University - SELYE JÁNOS EGYETEM, Komárno
2025 - Present

Advanced studies in IT with focus on cybersecurity, virtualization, and system administration.

📜

Bachelor's Degree

J. Selye University - SELYE JÁNOS EGYETEM, Komárno
2022 - 2025

Focus on programming, networking, and management. Thesis: Development of penetration testing tools and methodologies.

🛡️

Digitálni Ochrancovia Certificate

Itaps s.r.o
2025

DevOps and cybersecurity fundamentals including system monitoring, log analysis, permissions, and workflow automation.

Let's Connect

Open to opportunities in DevOps, System Administration