Kavinda Ranasinghe
Network Engineer @Hoptroff
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WORK HISTORY
Network Engineer @Hoptroff
City Of London, GB
Enterprise Networking | Firewalls | VPN | BGP | Cloud Networking (AWS)| Cisco | JuniperAs a Network Engineer, I design, implement, and support secure, high-performance network infrastructures across enterprise and data center environments. My role involves hands-on experience with advanced routing and switching protocols, firewall configurations, and low-latency network optimization for mission-critical applications.*Designed, configured, and managed Fortinet FortiGate, Cisco FTD, ASA, and Juniper firewalls to secure enterprise networks and enforce security policies.*Deployed and maintained IPSec VPNs, SSL VPNs, and advanced security services (UTM, IDS/IPS, NAT policies).*Implemented dynamic routing protocols such as BGP, OSPF, and EIGRP for high-availability and fault-tolerant network connectivity.*Managed Layer 2 technologies including VLANs, STP, and EtherChannel for efficient traffic segmentation and performance optimization.*Hands-on experience with Cisco Nexus switches (9K/7K series) in high-performance data center environments.*Delivered end-to-end RA VPN hardening on Cisco FTD firewalls, including policy optimisation, traffic inspection enhancements, and threat-prevention tuning to safeguard the environment against DDoS and password-spray attacks.*Operated in Equinix and Digital Realty facilities, handling patching, fiber/copper cabling, cross-connects, and rack management.*Created detailed network documentation, topologies, and SOPs for efficient operations, audits, and troubleshooting.*Monitored infrastructure with Nagios, SNMP traps, and syslog to proactively detect and resolve network issues.*Collaborated with cross-functional teams to align network designs with application, security, and cloud requirements.*Ensured compliance with ISO27001 and ISO9001 standards for information security and quality management.*Participated in change management, incident response, and conducted thorough root cause analysis for network disruptions.
EDUCATION
University of Hertfordshire
Bachelor of Engineering (Hons) - BE , Electrical, Electronics and Communications Engineering
University of Hertfordshire
Master of Science - MS, Communication and information engineering
Ranabima Royal College, Peradeniya
GCE Ordinary Level & GCE Advanced Level, Physical Sciences
Earthinators Climate School
Visharad Pt. I, Music Theory and Composition
ABOUT KAVINDA RANASINGHE
As a Network Engineer at Hoptroff, I focus on designing, implementing, and supporting secure, high-performance network infrastructures. My work emphasises advanced routing and switching protocols, firewall management, and optimising low-latency networks for mission-critical applications. I contribute to securing enterprise networks with expertise in Fortinet FortiGate, Cisco FTD, ASA, and Juniper firewalls, alongside implementing VPNs and dynamic routing protocols such as BGP. With a Master of Science in Communication and Information Engineering from the University of Hertfordshire, my academic background complements my technical proficiency in enterprise and cloud networking, as well as tunnelling. My goal is to enable secure, scalable networking solutions that support organisational success while adhering to industry best practices.
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