Siju KS

Key Result Areas:
• Working in switching and routing technologies (OSPF, EIGRP, BGPv4, RIP, VTP, STP, RSTP, VLANs, SPAN)
• Managing and Administering Cisco Router & Switches and responsible for installations, support, maintenance, upgrades and troubleshooting of Cisco Routers, Switches, Cisco based WAN and LAN networks
• Preparing documents including Network Architecture Design, System Hardware design and configuration of devices, adhering to industry standards and best practices.
• Deployments of upgrades and performing maintenance activities at regular intervals in order to improve the networking service availability.
• Preparing Low-Level Design (LLD) and High-Level Design (HLD) documents and configuration of devices, adhering to industry standards and best practices and creating design documents using Visio tool

Key Result Areas:
• Designing backbone network for signaling communication system in metro railways, ensuring seamless connectivity and efficient communication
• Preparing documents including DCS System Architecture Design, Interface Mapping, System Hardware design, Integration and Validation plan documents, and configuration of devices, adhering to industry standards and best practices
• Preparing Low-Level Design (LLD) and High-Level Design (HLD) documents and created design documents using Visio tool, ensuring accurate and up-to-date network documentation
• Providing network hardware details for procurement and designing network based on customer requirements, ensuring optimal performance and cost-effectiveness
• Creating and validating network backbone data required for Sydney Metro project, ensuring accurate and reliable data for system implementation
• Configuring network switches in all projects Sydney Metro NWRL and SMCSW stations, ensuring proper network connectivity and functionality
• Coordinating with multiple vendors, including Cisco and Riverbed, to address any issues with their respective devices
• Provided WAN/LAN/WIFI activities based on customer requests, ensuring timely and efficient network support and solutions
• Implemented cyber security features in DCS switches & Cylus IDS, enhancing network security and protecting sensitive data from potential threats
• Successfully led DCS Test and Commissioning works at for Sydney Metro City and Southwest, ensuring network establishment for other sub-systems and timely project completion
• Proposal of technical solution in-line with network design directives and project contractual requirements and provided feedback to Product and to Engineering teams

Client - Orica/IXOM and Deloitte
Key Result Areas:
• Prepared Low-Level Design (LLD) documents for LAN transformation activities and updated/created design documents using Visio tool, ensuring accurate and up-to-date network documentation
• Worked on LAN refresh activities, analyzing existing network topology, replacing EOL/EOS and non-Cisco devices, and proposing BOM based on port requirements, optimizing network performance and reducing costs
• Provided WAN/LAN/WIFI activities for Deloitte customer based on customer requests, ensuring timely and efficient network support and solutions
• Prepared configuration templates and providing implementation plan for the new switch replacement.
• Configured and troubleshoot wireless controllers and access points, ensuring optimal wireless network performance and connectivity
• Worked in site expansion activities, adding stack-switches for 250 users and creating configurations and BOMs, supporting business growth and expansion
• Successfully upgraded IOS for Nexus 7K and performed Nexus 7K IOS upgrade activity, enhancing network performance and stability
• Allocated new IP subnets in IPAM tools for new applications and servers, ensuring efficient IP address management and network organization
• Upgrading WLC code, configuring and addition of access points, managing heat maps on Cisco Prime.
• Managing and Administering Wireless controllers and troubleshooting end user WIFI related issues with help of Cisco Prime.
• Configured and troubleshoot IPsec VPN and DMVPM issues.
• Configured source NAT, destination NAT and applying policies in Palo Alto firewalls.

• Provided:
o Comprehensive network infrastructure support for NetApp, ensuring smooth operations and resolving critical issues
o Technical assistance to resolve critical and long pending issues, ensuring minimal downtime
o Vision and advice to team members, ensuring project goals were met and technical/operational issues were resolved
• Configured and troubleshoot network devices, including Cisco routers (ASR9k, ASR1k, 7200, 3360, 2800) and switches (6500, 4500, 3750, Nexus 5k, Nexus 7k).
• Upgraded IOS for routers and switches to enhance performance and security
• Implemented high availability solutions to ensure uninterrupted network services
• Managed and administered Cisco routers and switches, as well as Riverbed Steelhead devices (2050, 5050, 6050, 7050).
• Upgraded Riverbed Steelhead and Interceptor code to optimize network performance
• Successfully implemented Riverbed Steelheads in global offices, improving network efficiency
• Coordinated with multiple vendors, including Cisco and Riverbed, to address any issues with their respective devices
• Created change and work orders to implement network device configuration changes, ensuring smooth transitions
• Worked on major cutovers and implementations, ensuring successful project completion
• Utilized NM tools like HPNA, PathView, Vital Suite, and Netflow for network monitoring and troubleshooting
• Deployed upgrades and performed maintenance activities at regular intervals to improve networking service availability
• Documented standard operating procedures for the team, enhancing knowledge sharing and efficiency
• Troubleshot Cisco ACE and Big IP F5 load balancers, ensuring optimal performance
• Displayed knowledge in troubleshooting load balancers, including server farm management, probe status details, health checks, and server pool management
• Renewed and configured SSL certificates in Cisco load balancers
• Leveraged basic troubleshooting skills for Palo Alto firewalls