Koray Biçer

Network & Systems Specialist with daily hands-on experience configuring Juniper Junos switches — VLANs, trunk/access ports, LACP, and VLAN security — in a live data center.

Strong

Layer 1–2 networking foundation, combined with Linux/Windows Server administration, VMware ESXi virtualization, and cybersecurity skills (Kali Linux, Burp Suite, Nmap, Metasploit). Fortinet NSE 3-certified. Comfortable with technical English documentation and vendor communication.

Junior Network & Systems Specialist – Data Center Operations - DGN Teknoloji Data Center & Hosting

(2026-01)

• Daily Layer 2 configuration on Juniper Junos switches: VLAN segmentation, access/trunk ports, LACP link aggregation, and VLAN security.
• Administer Linux (Ubuntu, CentOS, Debian) and Windows Server on VMware ESXi/KVM virtualized infrastructure.
• Manage core network protocols (TCP/IP, DNS, DHCP, STP) and hypervisor/RAID provisioning across production data center systems.
• Monitor system/network logs and maintain technical English documentation for infrastructure and vendor systems.

IT & System Support Specialist - CBC Call Center

(2024-01 - 2024-12)

• Delivered remote and on-site technical support across mixed Windows/Linux environments for corporate staff, resolving OS, network, and application issues.
• Diagnosed and repaired hardware failures at the component level (motherboards, RAM, HDDs/SSDs, PSUs), reducing device downtime.
• Configured and maintained corporate LAN/Wi-Fi networks, routing, modems, and enterprise printer fleets.

Fiber Sales & Team Leader - Turkcell Superonline

(2022-01 - 2022-12)

• Led a fiber infrastructure sales team, tracking performance metrics and coordinating regional rollout activities.
• Built customer relationship management processes that supported infrastructure adoption in the region.

Accounting Assistant - RAL Chemistry

(2021-01 - 2021-12)

• Managed computerized accounting workflows and organized corporate technical documentation.

Intern – Banking Operations - Halkbank

(2020-01 - 2020-12)

• Supported high-compliance administrative workflows and secure document tracking within government banking infrastructure.

IT Installation Specialist - Mouse Com

(2019-01 - 2020-12)

• Provided on-site server and workstation hardware troubleshooting and custom software provisioning for enterprise clients.
• Deployed LAN configurations and maintained business-critical peripheral devices.

Associate Degree - Computer Programming - Anadolu University