Олександр

PAFYK OLEKSANDR
NETWORK ENGINEER

PROFILE

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Network Engineer passionate about solving complex network challenges and
delivering secure, high-performing enterprise infrastructures. Hands-on
experience with Cisco, MikroTik, and FortiGate, with additional exposure to
Aruba, Palo Alto, and Velocloud SD-WAN solutions. Skilled in routing, switching,
VPN deployment, firewall management, proactive network monitoring, and basic
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network automation using Python. Proven ability to optimize network
performance, ensure stability, and implement reliable security measures. Eager 🔗 LinkedIn/o-pafyk
to drive innovation through automation, strengthen cybersecurity, and contribute
to large-scale, cutting-edge network projects.

EDUCATION PROFESSIONAL EXPERIENCE

Kyiv Polytechnic Institute Netwave LLC
Bachelor’s Degree in Electronics and Network Engineer | May 2024 – March 2026
Telecommunications (2021–2025)
Took part in the deployment and optimization of a
LANGUAGES large government office network, handling physical
installation of networking equipment and structured
Ukrainian – Native cabling.
English - Intermediate (B1) Supported modernization of the existing
infrastructure, replacing outdated hardware and
CERTIFICATIONS redesigning switching/routing schemes for improved
performance and reliability.
Cisco Certified Network Associate (CCNA), Configured and maintained FortiGate firewalls, NAT
2024 policies, and SSL VPN on Cisco routers, ensuring
Microsoft Cybersecurity Analyst, 2025 secure access and connectivity.
Huawei Certified ICT Associate – Data Worked with switching and routing protocols, access
Communication (HCIA-DataCom), 2024 points, and Cisco WLC for wireless management.
Created automation scripts using Cisco EEM applets
SKILLS to simplify routine tasks.
Gained experience in Cisco telephony (CUCM)
Networking TCP/IP, VLAN (802.1Q), Inter- administration and integration.
VLAN Routing, STP/RSTP, OSPF, FHRP Assisted with SD-WAN (Velocloud) operations:
participated in lab testing and troubleshooting in a
(HSRP, VRRP), EtherChannel (LACP), DNS,
production environment with 100+ edge devices.
DHCP Collaborated with vendor support teams (Cisco,
VPN & Security: IPsec (site-to-site), SSL Velocloud/Arista) to resolve complex issues.
Utilized Cisco Prime and Cisco FMC for network
VPN, NAT, ACL, Firewall policy management
monitoring, configuration, and security management.
Hardware: Cisco, MikroTik, FortiGate, Aruba, Produced and maintained network documentation
Palo Alto, Velocloud (topologies, diagrams, and infrastructure plans)
Automation & Scripting: Basic Python, using Visio and draw.io.
Developed a Python-based tool to automate analysis
Network configuration scripts
of bandwidth, latency, and packet loss metrics,
Systems: Linux, Windows, Windows Server simplifying troubleshooting and improving visibility
Documentation & Design: Network into network performance.
diagrams, topologies, infrastructure planning Monitored network infrastructure using Zabbix,
analyzed performance metrics and participated in
troubleshooting based on alert data.