Gayan Ranaweera

Experience

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  Univell Microsystem Pvt Ltd

  Jan 2011 - Feb 2014

  System Engineer

  Expertise in the plan, design, implementation and support of LAN/WAN in Juniper,Cisco,Extreme, HP and Microsoft network environment. Strong Expertise in Network Seucurity plan, design and impmentation with Juniper(SRX,SSG,Netscreen)/HP(Tipping Point)/Fortinet/Check Point/ASA.Expertise in medium/large sized Wireless network design/configuration & implementation with HP, Aruba and Juniper.Hands on experience in configuring CISCO, Juniper and Extreme based routing e.g. Static Routes,OSPF,BGP,MPLS,HSRP,VRRP,EAPS,MLAG route redistribution etc., and switching implementation e.g. VLAN,STP,MSTP,VTP,Access lists,L3 Switching etc. Hands on experience implementing and administrating Juniper IPsec VPN and SSL VPN.Hands on experience implementing Souce NAT, Destination NAT, Double NAT and Static NATHands on experience on experience in structured network cabling such as STP, UTP, coaxial etc.Hands on experience in Windows 2003/2008 server administration with Active directory, Radius Server, DHCP Server, DNS Server and administration, Forefront TMG, ESET, and Sophos.Strong hands on experience in network redundancy design and implementation with VRRP, MLAG, ESRP,Virtual Chassis,Stacking and IRF. Show less

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  Virtusa

  Feb 2014 - Feb 2015

  CSGi (www.csgi.com) is a Global Leader in Telecommunication Application Service delivery. Headquartered in the City of Englewood, United States. Which has 3500 plus employer base in different geographical locations. Our responsibility is to provide 24x7support to our Internal and the large Corporate Client base utilizing the Network Infrastructure and providing reliable and effectivesolution services. Some of the clients include AT & T Global and Comcast who are global telecommunication service providers.Project : Csgi DNE (Data Network Engineering)Responsibilities : Maintaining multiple platform devices including Cisco(IOS/Nexus) Switches, ASA Firewalls, Juniper Firewalls and F5 Load Balancers. Implementing Major, Medium, Minor Changes on the network as per ITIL Change Management best practice using BMC Remedy ITSM. Coordinating with Internet service providers Creating Issue tickets with CISCO TAC and RMA for hardware replacement. Upgrading IOS Network Vulnerability Scanning (Nessus) Network Monitoring ( SOLARWINDS NPM, Stat Seeker, Manage Engine, Infoblox NetMRI) Drawing ISMS standard High level and low level network diagrams (Microsoft Visio). Preparing ISMS standard Documents for RCA Reports Technical Troubleshooting Document Managing device backups Inventory management. Managing and maintaining Syslog server (Solarwinds, splunk) Troubleshooting network issues of customers. Understanding of ITIL principles and practicing them. Show less Project: Royal Philips Electronics USA (Senior Network/​Security Engineer)Environment: Cisco IOS Switches,Cisco Nexus Switches, ASA Firewall, Juniper SRX Firewall, Extreme Switches, Cisco WLC Wireless ,Windows Server 2012/2012R2, Solar Wind Orion, LANDesk Management Suite 9,Nessus v 2.3.5,Splunk ,Symantec Endpoint Protection 12.1.1200, Websense TRITON-Unified Security Centre 7.7 ,SNORTSecurity scope:• Performing analysis of network security needs and contributes to design, integration, and installation of hardware and software.• Analyzing, troubleshooting and correcting network problems remotely and on-site.• Maintaining and administering perimeter security systems such as firewalls and intrusion detection systems.• Analyse, troubleshoot, and investigate security-related, information systems’ anomalies based on security platform reporting, network traffic, log files, host-based and automated security alerts.• Maintain, configure, and analyse network and host-based security platforms• Evaluate systems using vulnerability scanners and manual techniques to verify system security settings and configurations.• Provide reoccurring reports for network and host-based security solutions.• Maintain and update relevant system and process documentation and develop ad-hoc reports as needed.• Assist the development of security tool requirements, trials, and evaluations, as well as security operations procedures and processes• Engineer, implement and monitor security measures for the protection of computer systems, networks and information• Design system security architecture and develop detailed security designs• Use Computer/network security, Active Directory and operating systems, firewalls to support security audits related reporting.• Overall Security architectural redesigning.• Provide daily, ongoing security oversight of assigned systems as to the security impact of proposed modifications, additions, and technology refresh evolution etc. Show less

  • Engineer-Specialist (Network Security)

    Feb 2014 - Feb 2015

  • Engineer-Specialist (Network Security)

    Feb 2014 - Feb 2015
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  Gulf Business Center WLL

  Feb 2015 - Aug 2016

  Network Engineer

  Enterprise Network Designing and Implementations (HP A-Series, E- Series Switches, Cisco and Juniper)Advance Network Integration with different vendor products. Designing and Implementation of Enterprise WLAN Network with HP MSM Products, HP Unified WLAN products and Aruba ProductsInstallation & Configuration of Security products. (Fortinet / Juniper / Checkpoint / Barracuda / Tipping Point)Installation & Configuration of Load Balancer products. (F5/Barracuda)HP Intelligent Management Center (IMC) Integration and ImplementationAruba Clear Pass Integration and Implementation Show less

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  CryptoGen

  Sept 2016 - Oct 2019

  • Manager - Technical Consultancy

    Sept 2016 - Oct 2019

  • Senior Consulting Engineer - Information Security

    Mar 2018 - Nov 2018

  • Consulting Engineer - Information Security

    Apr 2017 - Mar 2018

  • Senior Information Security Engineer

    Sept 2016 - Apr 2017
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  ESec Forte® Technologies

  Oct 2019 - Aug 2020

  Information Security Consultant
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  Self Employed

  Jan 2020 - now

  Information Technology Security Consultant
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  Hayleys Fentons

  May 2021 - Aug 2024

  • Head of Technology

    May 2023 - Aug 2024

  • Head of Engineering / Presales

    Oct 2022 - May 2023

  • Solution Architect - Information Security

    May 2021 - Oct 2022
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  Softlogic Information Technologies (Pvt) Ltd

  Aug 2024 - now

  Head of Cyber Security