M. INSHAJ SAMSUDEEN
PLANO
Summary
Highly accomplished Network Administrator with over 16 years of experience designing, implementing, and maintaining mission-critical network systems. Proven track record of leading successful infrastructure deployments and upgrades, with minimal production impact.
Overview
18
18
years of professional experience
1
1
Certification
Work History
Associated Manager
NDB Bank
Colombo
01.2025 - Current
- Oversee IPS functionality, design and implement new security zones, and apply remediation strategies based on threat intelligence to safeguard against potential vulnerabilities
- Develop and maintain baseline configurations, ensure HA synchronization, and implement change requests following established processes to support infrastructure resilience.
- Created strategic security roadmaps and comprehensive network architecture blueprints to strengthen the bank's overall cyber security posture and support long-term infrastructure resilience.
- Led the implementation, migration, and ongoing support of enterprise firewalls including Check Point, Palo Alto, and Fort iGATE, ensuring seamless transitions between vendors while maintaining secure network architecture and uninterrupted business operations.
- Proficient in monitoring and managing firewall operations across multi-vendor platforms including Palo Alto, Cisco Firepower, Juniper SRX, Check Point, and FortiGate while maintaining security configuration standards to prevent unauthorized access and ensure network integrity.
- Achieved a 40% security enhancement in perimeter firewall hardening within three months by strategically planning and launching four key Advanced Security Profile features, significantly strengthening overall network defense.
Technical Specialist
HCL Tech
Colombo
12.2021 - 01.2025
- Managed and monitored global IT infrastructure, including configuration and support for F5 BIG-IP load balancers and Cisco Layer 2/Layer 3 switches.
- Provided 24/7/365 surveillance, incident management, and troubleshooting for data centers, information security systems, and enterprise applications.
- Delivered network support and issue resolution for Smith & Nephew's head office in the UK and its global branch offices using Service Now for ITSM operations.
Group Network Administrator
Hemas Holdings PLC
Colombo
02.2008 - 01.2021
- Evaluated, designed, and implemented global network and security solutions across cloud and on-premise environments; maintained, monitored, optimized, patched, and updated network equipment to ensure performance, security, and compliance For Hemas Holdings PLC, including Layer 2 and Layer 3 networks; ensured high availability, performance, and security across enterprise network environments.
- Designed and implemented secure and scalable network infrastructure, including VPN, LAN, WAN, and DMZ configurations, through analysis of business workflows, access/security requirements, and administration needs-leveraging protocols such as static routing and BGP.
- Enhanced network performance and reliability by monitoring key metrics (availability, throughput, latency, utilization), leading the planning and execution of network hardware installations, configurations, and testing, and enforcing network policies and firewall configurations.
- Collaborated with internal and external cyber security teams to design and enforce LAN security best practices across the organization, providing actionable recommendations and remediation's for vulnerabilities identified through weekly Nessus vulnerability scans.
- Ensured high customer satisfaction by effectively managing Service Level Agreements (SLAs) for corporate clients and delivering reliable, secure network solutions aligned with their business needs.
Education
Master of Business Administration - Global
Southampton Solent University
01.2021
Bachelor of Science (Hons) - Computer networks
Birmingham City University
01.2018
Skills
- Network fundamentals
- TCP/IP
- Sub netting
- Routing concepts
- Firewall technologies
- Stateful inspection
- Palo Alto Networks firewall features
- App-ID
- User-ID
- Global Protect VPN configurations and policy manage
- Configure the Wildfire according to the best practice
- NAT policies
- Policy-based routing
- Security profiles
- Endpoint security solutions
- Crowd-Strike Falcon Sensor
- Threat detection
- IPSec VPN tunnels
- Fort iGATE firewalls
- IKE (v1/v2) &PKI
- SSL/TLS protocols
- Network troubleshootings via Wire shark
- Auditing
- Vulnerability scanning with Nessus
- IDS/IPS
- Configure and manage FortiGATE Firewalls
- Intrusion detection
- Big IP F5 Load balancing
- F5 BIG-IP
- Custom iRules
- High availability (HA)
- Migration strategies
- Log analysis
- SOC Radar tool
- Security event correlation
Certification
Palo Alto Networks Certified Network Security Engineer Date issued: May 24, 2025 Expires: May 24, 2027 | canditate ID PAN00285034 Registration ID 506061983
Timeline
Associated Manager
NDB Bank
01.2025 - Current
Technical Specialist
HCL Tech
12.2021 - 01.2025
Group Network Administrator
Hemas Holdings PLC
02.2008 - 01.2021
Master of Business Administration - Global
Southampton Solent University
Bachelor of Science (Hons) - Computer networks
Birmingham City University