SAMER HALABI
Istanbul
Summary
Senior Network Engineer with 15 years of experience in designing, securing, and managing enterprise network infrastructures. Expert in Cisco, pfSense, and FortiGate firewalls, network security, and high-availability solutions. Strong experience in network design, diagramming, and documentation, with hands-on management of Ruijie and Juniper cloud platforms. Highly skilled in network best practices, including VLANs, STP, DHCP, EtherChannel, HSRP, static and dynamic routing, SD-WAN, port security, ACLs, and wireless AP heat-map planning, delivering scalable, secure, and reliable network environments.
Professional network engineer prepared for advanced roles in network design, implementation, and troubleshooting. Skilled in routing, switching, firewall configuration, and network security protocols. Strong focus on team collaboration and achieving results, adaptable to changing needs. Known for reliability, analytical thinking, and problem-solving abilities.
Experienced with advanced network design and implementation. Utilizes in-depth knowledge of network security to protect sensitive data and ensure system integrity. Track record of effectively troubleshooting and resolving complex network issues, ensuring optimal performance and reliability.
Overview
15
15
years of professional experience
1
1
Certification
Work History
Senior Network Engineer
Ghassan Aboud Holding
Dubai, United Arab Emirates
02.2017 - 04.2024
- Directed deployment and management of Avaya VoIP systems to enhance communication infrastructure.
- Oversaw Azure cloud services, including servers, load balancers, and recovery service vaults.
- Administered configuration and maintenance of pfSense firewalls, ensuring secure IPSec tunnels for ERP Navision and additional services.
- Implemented Sectona PAM, managing privileged access controls, enforcing least privilege policies, monitoring sessions, and integrating PAM with Windows, Linux, and network devices for all users.
- Managed and maintained Ruijie and Juniper cloud-based wireless systems.
- Managed and executed network infrastructure projects (wired, wireless, and network devices).
- Led the VoIP implementation project within the company.
- Established and maintained a site-to-site VPN between the Turkey branch and Head Office.
- Provided L1, L2, and L3 IT support across all Turkey offices.
- Administered and supported Domain, DNS, and DHCP servers, including user management.
- Troubleshot and maintained network devices and technologies (firewalls, switches, routers, VLANs, VPNS, ACLS, SIP trunks, NAT, QoS).
- Managed network infrastructure (wired and wireless) across 55 branches, including switching, routing, and physical firewalls.
- Led design and implementation of scalable network architectures to enhance system performance.
- Managed complex network troubleshooting, ensuring minimal downtime and improved service reliability.
IT Administrator
Katakit Kids Company
05.2015 - 12.2016
- Installed, configured, and troubleshot domain controllers.
- Installed and configured SQL Server and Shadow Copy for database management.
- Set up and configured ISA Server, enforcing internet access through proxy.
- Installed and configured RAS Server, enabling VPN connectivity for 25 branches to the head office.
- Installed and configured File Server, and managed ACL and auditing for shared folders.
- Configured RAID 1 and RAID 5 for system storage solutions.
Senior IT Engineer
Oztuna Media Yapim
10.2009 - 01.2013
- Designed pre-sales IT solutions for client projects, including service delivery and project management.
- Provided post-sales support to ensure customer satisfaction and smooth operations.
Education
Bachelor of Science - Computer Engineering
Aleppo University
08.2008
Skills
- Fortinet expertise
- Ruijie
- Azure
- PFsence
- Zabbix
- Cisco
- Avaya
- PAM
- VPN
- QoS
- VLAN
- VOIP
- DNS
- DHCP
- Routing
- Switching
- SD-WAN
- HSRP
- EtherChannel
- ACLs
- Security
- STP
- Windows
- Linux
- HeatMap
- Policy
- DC
- Firewall management
- Intrusion mitigation
- Wireless network design
- Routing protocols expertise
- IP address management
- Network architecture design
- Quality of service management
- VoIP infrastructure deployment
- Load balancing strategies
- DNS and DHCP administration
Certification
Microsoft Azure Administrator Associate AZ-104
Cisco Certified Associate CCNA
Microsoft Certified IT Professional MCITP
Sectona PAM Administration
Specialist Fortinet Administrator Course Completion
Languages
Arabic
English
Turkish
Education Certifications
Bachelor's Degree in Computer Engineering, Company Description
Timeline
Senior Network Engineer
Ghassan Aboud Holding
02.2017 - 04.2024
IT Administrator
Katakit Kids Company
05.2015 - 12.2016
Senior IT Engineer
Oztuna Media Yapim
10.2009 - 01.2013
Bachelor of Science - Computer Engineering
Aleppo University