Денис

Denis Antoniuk
Network Administrator | Junior Security Analyst
Ukraine (remote) | [open contact info](look above in the "contact info" section) | [open contact info](look above in the "contact info" section)

SUMMARY
CCNA and MTCNA certified network specialist with 2 years of hands-on work on MikroTik and Cisco equipment: setting up
devices, keeping the network stable and watching it for problems. I also have practical experience in cybersecurity, mostly
network monitoring and traffic analysis, and I take part in CTF competitions. I use Python to write Telegram bots and small
scripts that save time on routine tasks. Bachelor's degree in Cybersecurity from KPI.
Looking for a part-time remote role (4-5 hours per day, 20-25 hours per week) with a US or Canadian team.

EXPERIENCE
Network Administrator 2024 - Present
Ukraine
Configure and maintain MikroTik and Cisco routers and switches
Monitor network availability and traffic, find the cause of connection problems and fix them
Use Wireshark and Nmap for troubleshooting and to check the network for open ports and unknown devices
Automate small repeated tasks with Python scripts

SECURITY & PROJECTS
CTF Competitions Ongoing
Solve tasks in network forensics, traffic analysis and reconnaissance
Analyze .pcap files in Wireshark to find suspicious activity and hidden data
Log Monitoring with Splunk
Searched and filtered logs in Splunk to find unusual events and failed logins
Python: Telegram Bots and Scripts
Built several Telegram bots for notifications and simple automation
Wrote small scripts for working with files, data and network checks
Use Claude Code as an AI coding assistant to write, review and debug code faster

SKILLS
Networking MikroTik (RouterOS), Cisco IOS, TCP/IP, routing and switching, network monitoring,
troubleshooting
Security Wireshark, Nmap, Splunk, traffic analysis, CTF
Operating Systems Linux (Ubuntu, Kali Linux), command line, Bash basics
Programming Python (junior), Telegram Bot API, Git
Tools Claude Code

CERTIFICATIONS
CCNA (Cisco Certified Network Associate) | MTCNA (MikroTik Certified Network Associate)

EDUCATION
Igor Sikorsky Kyiv Polytechnic Institute (KPI) 2020 - 2024
Bachelor's degree, Cybersecurity

LANGUAGES & AVAILABILITY
English: Intermediate / Upper-Intermediate (B1-B2), comfortable with written communication and calls. Ukrainian: Native.
Availability: 4-5 hours per day, flexible schedule, can overlap with North American business hours. Contract work.