Shareef Kooliyodan
@shareefkooliyodan
Senior Network and Security Engineer focused on resilient, secure infrastructure.
What I'm looking for
I am a technically sophisticated IT professional specializing in network and security engineering with extensive experience designing, implementing, and maintaining LAN, WAN, and WLAN infrastructures across GCC markets.
I have led deployments and operations for firewalls, VPNs, Cisco ISE, Cisco DNA Center, WLCs, routing protocols (EIGRP/OSPF/BGP), and high-availability solutions, while driving performance tuning, capacity planning, and incident response.
I hold multiple Cisco and Microsoft certifications (Cisco SCORE, ENCOR, CCNA, CCNA-Voice, MCSE) and have delivered measurable improvements in scalability, redundancy, and security at enterprises in Kuwait, UAE, and Saudi Arabia.
I bring strong vendor coordination, documentation discipline, and hands-on skills in virtualization, backup/recovery (Symantec, Acronis, Veeam), and firewall management, and I focus on proactive operations and clear communication to resolve escalations and support business continuity.
Experience
Work history, roles, and key accomplishments
Network Engineer
Diyar United Company
May 2023 - Present (2 years 5 months)
Design and implement LAN/WAN/WLAN and security solutions, deploy and maintain firewalls (Cisco FTD/FMC), ISE, DNAC and VPNs, and provide L2/L3 support to improve network scalability and availability.
Sr. Network & Security Administrator
Al Nawadi Holding Company
Nov 2019 - May 2023 (3 years 6 months)
Led design, implementation and support of network and security infrastructure including firewalls, VPNs, routing/switching and VMware virtualization to ensure high availability and data availability across the enterprise.
Network & System Administrator
Datawave Technologies LLC
Feb 2015 - Oct 2019 (4 years 8 months)
Managed and troubleshooted Cisco routing/switching and security platforms (FMC, ASA, NGIPS), maintained server and backup systems, and coordinated vendor implementations to improve network security and uptime.
System Administrator
Trevi Arabian Soil Contractors Ltd
May 2010 - Nov 2011 (1 year 6 months)
Managed office network infrastructure including Cisco switches/routers, VoIP extension configuration, Hyper-V/VMware VMs and Windows Server administration to maintain operations and control internet bandwidth.
Education
Degrees, certifications, and relevant coursework
Periyar University
Bachelor of Business Administration, IT Networking
2008 - 2011
Completed a BBA in IT Networking at Periyar University, focusing on networking fundamentals and systems administration.
Cisco Systems
Professional Certifications (ENCOR, SCORE, CCNA), Network Engineering / Security
Completed vendor certifications covering enterprise networking and security core technologies.
Microsoft
MCSE (Microsoft Certified System Engineer), Systems Administration
Earned Microsoft Certified System Engineer (MCSE) certification focused on Windows Server administration and related technologies.
Tech stack
Software and tools used professionally
Availability
Location
Authorized to work in
Job categories
Skills
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