Sasikumar M Email & Phone Number

Bengaluru, Ka, In

Bengaluru, Karnataka, India

Bengaluru Area, India

• Implementation and Managing of Mphasis Global Network and Security, .• Working closely with business management team to determine business process and right technology strategies to support business objectives and Sharing design and Bill of Material (BOM).• Led the effort to integrate a newly acquired company into the Mphasis network and server infrastructure, managing all communications, planning, and implementations.• Implemented primary monitoring infrastructure for the entirety of the LAN/WAN/Security devices and server environments with Everest Monitoring Tool.• Implemented Aruba Wireless for Customer Experience center in Head office.• Radware Cloud Web Application Firewall (WAF) Implemented to Corporate Applications, working closely with application team and moving it one by one and SIEM integration to Security Operation Center.• POC for modern technology/Devices and evaluating result with Leadership team to implement in Mphasis (POC done for CyberArk, Radware Alteon, and Aruba Clear Pass for 802.1x Authentication to LAN)• Mentored and trained junior, providing maintenance to Network and Security device (Routers, switches and Firewall). Diagrammed overall company networking infrastructure for internal security purposes.

Chennai Area, India

• Implementing and troubleshooting client connectivity from offshore development centers.• Implementation and Managing of Cognizant Global Network. Configuring and troubleshooting of VLAN, VTP, Inter-VLAN routing.• Implemented CE to CE link between primary and secondary MPLS routers across cognizant locations to increase high availability and reduce the project down time, if primary link goes down.• In depth knowledge in troubleshooting hardware related problems of network devices such as routers, switches and Firewalls.• AT&T EVPN links into AVPN migration activity completed to all clients • Work closely with other project delivery teams to design high availability solutions for project connectivity.• Configuring and Managing cisco ASA firewalls. (Version 8.x & 9.0) and troubleshooting NAT (overlapping client IP address and internet access).• Performed critical production network migration from legacy hardware devices to advanced technologies.• Processing firewall requests which is raised by project team and Evaluation & Implementation of Network Change Requests.• Implemented ODC setup to several clients and Conducting BCP for all offshore development centers to ensure high availability to client Network.• Implementation and troubleshooting Gateway redundancy protocol.• Coordinating closely with new client networking team and project team to implement connectivity to client.• Configuration & Troubleshooting of IPSEC Site to Site VPN and RAVPN• Managing web sense for creating and modifying policies based on project requirements.• Project migrations from one location to other location and ODC expansions.• Migrated ODC Cisco ASA physical firewalls into Virtual firewall environment.

Bangaon Area, India

• Analyze connectivity problems, interpret testing results with different Telecom Companies and determine if the client’s equipment/circuits, vendor connection lines or Company routers are the cause and initiate measures for prompt rectification.• Represent NOC Operations in Weekly Change Control Meetings across Multiple Data Centers. Track and schedule the necessary Changes across ACS and Client Networks• Actively involving in Sev 1 Tickets where client impact is very high and drive through the troubleshooting process in restoring the service ASAP.

Bangalore

• Managing WAN for more than 300 locations with telecom engineers provided based on Regional Offices.• Handling routing and switching calls with Access Layers / Distribution layers and Core layers.• Maintains network with Static / EIGRP / BGP routing as per the design.• Installation, Deployment and Maintains Unified Communication Manager (UCM 6.0) for IP Telephony.• Monitoring the network performance and manage the network faults through Cisco Works LMS.• Installation, configuration, and troubleshooting of Cisco Secure Box (Access Server) for implementing global authentication, authorization and accounting.• Providing all technical lead and assistance for the migration of point to point Links to MPLS cloud.• Co-ordination with CISCO-TAC for higher end issues.• Configurations of access level Cisco routers (1800, 1700, 1600, etc series).• Configuration of aggregation router and core routers using dynamic Routing protocols (3600, 3700, 7200, etc). • Installation and configuration of Multi-channel E1 card for CH-E1 / PRI standards.• Leading the Team for Commissioning and Maintenance of Leased Lines, ISDN-PRI/BRI and CH-E1.• Co-ordination with other three core teams to resolve technical issues.• Scheduled DR Site testing for various applications like CBS & Database, ATM – Tandem server, I-Banking & Tele Banking applications, etc to avoid outages due to network issues.• Scheduled Testing towards Core Routers and links (34 MB, 45Mb, DC and DR, etc.)• Co-ordination with Service Providers for routing issues in MPLS cloud.