Laiju Chacko

• Handled transition and transformation of network security infrastructure design and deployment.
• Led the migration of network security devices including firewalls and VPN devices ,ensuring zero downtime and adherence to security best practices.
• Planned and executed firewall policy migration between platforms (e.g.: Checkpoint to Cisco ) verifying rule consistency and eliminating redundant/unused rules to optimize security posture .
• Assisted in the secure migration of critical applications and server to new environment , ensuring minimal downtime and full compliance with internal security policies.
• Coordinated application and server migration across environments ( on-prem to cloud / datacenter to cloud) identifying and addressing potential security risks during transition .
• Planned and executed site-to-site VPN migration with very minimal service disruption with different third party vendor .
• Developed and implemented comprehensive security strategies, assessing risks and managing projects.
• Collected and analysed business requirements, establishing vision and road maps aligned with priorities.
• Granted final technical approval for network security changes in data centre and campus locations.
• Provided governance and guidance on network security topics to enhance compliance.
• Conducted audits to identify security violations and operational inefficiencies.
• Determined vulnerabilities and prepared upgrade plans by maintaining robust security controls.
• Coordinated upgrades and replacements for end-of-support security devices based on assessments.
• Lead incident response efforts, including investigation and remediation.

• Led Network & Security team to deploy data centre and office setups.
• Deployed secure network solutions using Fortinet and Checkpoint technologies.
• Collected and analysed business requirements to establish strategic roadmaps.
• Coordinated project assignments to engineers, ensuring timely project closure.
• Designed, installed, and maintained VPN devices for secure communications.
• Established site-to-site VPN connections with various third-party vendors.
• Provided governance and guidance on network security topics.
• Delivered training sessions to operational teams for enhanced knowledge transfer.

• Operated in 24/7 shift role within Network Operation Centre.
• Managed SLA incident and change tickets for network, firewall, VPN, proxy, load balancer, WLC, and IP phone.
• Deployed and configured network and security equipment according to project designs.
• Delivered technical support by analysing hardware and software issues to implement solutions.
• Oversaw projects for new setups including datacenters, offices, plants, and warehouses.
• Facilitated hardware replacements for end-of-support equipment.
• Reviewed and approved daily change/task tickets while managing backups for security devices.
• Utilised Tufin Firewall Automation Tool to enhance security management.

Project Handled

• New Datacenter Firewall setup (Japan, China, Singapore &Korea).
• Datacenter migration (Singapore & China)
• APAC Campus firewall and VPN setup (Checkpoint & Fortinet).
• Firewall management setup R80.10, R80.20, R80.30,R80.40 &R81.10
• Firewall log server setup R80.10, R80.30
• Gateway upgrade from R77.30 to R80.10, R80.20 &R80.30
• VPN tunnel migration from legacy DC to New DC

• Handling Procter and gamble network infrastructure like Device monitoring, incident management and issue resolution.
• Install / Troubleshoot multiple platforms of Cisco equipment (switches, routers) in the Data canter environment.
• Pro-actively manage and monitor the customer network infrastructure to meet the defined customers Service Levels.
• Handling incident/Change/task tickets from all the APAC location within SLA.
• To do troubleshooting, systematic analysis and diagnosis on any network, security faults and problems.
• Taking customer calls regarding network/server issues and working with them to resolve the problem
• Configure new ports and assigned them to respective VLANS for the installation of new servers and network devices.
• Monitor tickets status from acceptance to closure to find the root cause of issue using HP Open View service desk.
• Facilitate and escort third party vendors requests for site survey.
• Work with 3rd party vendors (Star hub, SingTel, British Telecom) to resolve issues.

• Worked as Network Admin. Oceanus is one of the leading companies in the Real Estate Sector.
• Maintaining LAN, router, servers, workstations, printers and VPN connectivity.
• Performed installation and troubleshooting of software and hardware.
• Troubleshoot network, Internet, Intranet and LAN problems for users.

• Maintaining LAN, router, servers, workstations, printers, and VPN connectivity.
• Performed installation and troubleshooting of software and hardware.
• Performed backups and anti-virus patch updating.
• Installation of Local Area Networks.
• Online customer site services.