Hamit Gülen
Network Security Engineer
İstanbul
Overview
6
6
years of professional experience
9
9
years of post-secondary education
2
2
Certifications
4
4
Languages
Work History
Senior Network Security Engineer
BDH Technology
05.2025 - Current
- Administration and configuration of FortiGate Cisco and Palo Alto Firewalls
- Administration and configuration of F5 systems
- Definition and enforcement of corporate security policies
- Deployment and management of TrendMicro and SentinelOne antivirus solutions
- Deployment and administration of FortiAuthenticator
- Deployment and administration of FortiManager
- Deployment and administration of FortiNAC
- Deployment of FortiADC
- Deployment and configuration of Cisco Duo 2FA
Senior Network Security Engineer
Etiya Yazılım
09.2024 - 05.2025
- Optimized security configurations for routers, switches, and firewalls to improve overall system performance.
- Established secure remote connectivity options for employees, enabling secure access while working remotely or traveling abroad.
- Managed vendor relationships, evaluating new technologies to enhance the organization''s security posture continually.
- Increased network visibility by deploying advanced monitoring tools and analyzing traffic patterns for potential threats.
Security Engineer
Exclusive Networks
09.2023 - 09.2024
- Palo Alto deployment and configuration (Post-Sales)
- F5 deployment and configuration (Pre-Sales and Post-Sales)
- Arista Networks deployment and configuration (Pre-Sales and Post-Sales)
Network Security Specialist
Telcocet
04.2022 - 09.2023
- Administration and configuration of FortiGate and Palo Alto Firewalls
- Administration and configuration of F5 systems
- Definition and enforcement of corporate security policies
- Deployment and management of TrendMicro and SentinelOne antivirus solutions
- Deployment and administration of FortiAuthenticator
- Deployment and administration of FortiManager
- Deployment and administration of FortiNAC
- Deployment of FortiADC
- Deployment and configuration of Cisco Duo 2FA
IT Administrator
Haber Global TV
04.2021 - 04.2022
- Administration and configuration of FortiGate Firewall
- Management and configuration of all switches (HP and Dell)
- Administration of Active Directory services
- Cloud email systems administration, configuration, and migration (O365)
- Definition and enforcement of corporate security policies
- Antivirus management
- Deployment and administration of NAC systems
Network Security Specialist
Lorepoint Şirketler Grubu
01.2020 - 03.2021
- Deployment and administration of FortiGate Firewall
- Deployment and administration of Palo Alto Firewall
- Deployment and management of Cisco, HP, Aruba, and Fortinet switches
- Definition and implementation of corporate security policies and procedures
- Design and management of network security projects
- Conducting penetration tests
- Administration of Active Directory services
- Administration, configuration, and migration of cloud email systems (O365, Yandex, Google)
Cybersecurity Intern
Wissen Akademie
09.2019 - 01.2020
- Network
- Virtualization
- Active Directory Domain Services
- Linux
- System and Network Security Systems
Education
High School
Erkan Avcı
Istanbul 04.2008 - 01.2012
Associate Degree in Electronics Technology - Electronics Technology
Istanbul Kultur University
01.2012 - 01.2014
Bachelor - Electrical And Electronics Engineering
Near East University
01.2016 - 01.2019
Skills
Administration, configuration, and migration of cloud email systems (O365, Google)
Deployment and configuration of antivirus solutions (Comodo, TrendMicro, SentinelOne)
Routing, switching, WAN, and security implementations (HP, Cisco, Dell)
VPN setup and management (IPSec, Site-to-Site, L2TP)
Websites
Certification
NSE 4
Timeline
Senior Network Security Engineer
BDH Technology
05.2025 - Current
Senior Network Security Engineer
Etiya Yazılım
09.2024 - 05.2025
Security Engineer
Exclusive Networks
09.2023 - 09.2024
Network Security Specialist
Telcocet
04.2022 - 09.2023
IT Administrator
Haber Global TV
04.2021 - 04.2022
Network Security Specialist
Lorepoint Şirketler Grubu
01.2020 - 03.2021
Cybersecurity Intern
Wissen Akademie
09.2019 - 01.2020
Bachelor - Electrical And Electronics Engineering
Near East University
01.2016 - 01.2019
Associate Degree in Electronics Technology - Electronics Technology
Istanbul Kultur University
01.2012 - 01.2014
High School
Erkan Avcı
04.2008 - 01.2012