Vinothkumar Shanmugham

Experience

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  Durja Infotech

  Jan 2009 - Mar 2010

  System Administrator

  Installing, Configuring and troubleshooting of various operating Systems like WindowsXP/Vista• Installing, configuring and administration of MS-Outlook• Installing and configuring of System and Application Software’s.• Troubleshooting and Diagnosing the PC Problems.• Fixing N/W related issues• Backup management for Windows desktop & laptops.• Updating the patches periodically in all the system.• Monitoring and Rectifying the Virus-Related issues

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  Resource Square Solutions Pvt. Ltd.

  Apr 2010 - Mar 2012

  L1 Network Analyst

  As an L1 Network Analyst at Resource Square Pvt Ltd, I played a pivotal role in network deployment and maintenance. This involved deploying OS for various network devices, meticulously managing network ports, and conducting quarterly resiliency tests to ensure stability. In addition to technical responsibilities, I actively contributed to training and support efforts, conducting monthly training sessions on VLAN, VPN, and DHCP. I provided valuable user support through dedicated portals and diagnosed network issues to facilitate seamless operations. My role also encompassed project management and coordination, where I led the setup of new facility workstations, ensuring smooth transitions across teams. I actively coordinated Business Continuity Planning (BCP) simulations, further enhancing our preparedness. In incident management, I monitored and resolved Level1 network incidents and consistently reviewed syslog server data. Additionally, I prepared weekly reports on capacity and utilization to keep the team informed. I also actively engaged with vendors, conducting call tree drills for effective communication and managing ISP interactions to promptly address link issues. Throughout my journey as an L1 Network Analyst, I was committed to maintaining network stability, providing support, and contributing to the efficient operation of the organization. Show less

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  Accenture

  Apr 2012 - Mar 2017

  Network Engineer

  During my tenure as a Network Analyst at Accenture Services Pvt Ltd, I took on multifaceted responsibilities to bolster network efficiency and security. I actively contributed to information security audits, front-ending these critical assessments, and played a pivotal role in change reviews, ensuring network compliance and security standards were met consistently. My impact extended to network infrastructure migration, where I successfully oversaw the migration of Chennai Network devices to the Global Tacacs Server from a local server. This move not only enhanced network management but also significantly bolstered network security measures. In addition, I took charge of policy development and standards, crafting comprehensive network policies, system standards, and operational procedures. These measures ensured a streamlined and efficient approach to network support. Furthermore, I meticulously managed and maintained Cisco and Juniper firewalls, switches, and routers, safeguarding the network's security and reliability. Throughout my journey as a Network Analyst, I remained dedicated to elevating network performance and fortifying security measures, contributing to Accenture's success in this critical domain. Show less

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  Cognizant

  Apr 2017 - Mar 2022

  Senior Network Specialist

  In my role as an Infra Technology Specialist at Cognizant Technologies Solutions, I was at the forefront of network infrastructure development and management, specializing in routing, switching, and WLAN solutions. I also excelled in cloud connectivity and integration, enabling seamless and secure communication by establishing connections to Azure Express Route and AWS Direct Connect through SDN and SDWAN technologies. One of my significant achievements was leading the migration of External DNS to Route 53, where I implemented rigorous application health checks to maintain continuous availability during outages. This involved close coordination with senior management and Service Delivery teams. Additionally, I was responsible for managing F5 LTM server load balancing platforms, working collaboratively across cross-functional teams to design and implement scalable network solutions and policies. My commitment to network security was evident in my collaboration with the audit team to identify and address network vulnerabilities. This proactive approach ensured ongoing maintenance and continuous enhancement of network security. My tenure as an Infra Technology Specialist was marked by a dedication to optimizing network infrastructure, fostering collaboration, and fortifying network security. Show less

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  Caterpillar Inc.

  Apr 2022 - Feb 2024

  OT/IOT Cybersecurity Engineer

  As an ICS/OT Cybersecurity Analyst at Caterpillar, I played a pivotal role in fortifying our network security. Collaborating closely with the Firewall and Network teams, I established effective network segmentation strategies, significantly enhancing our OT cybersecurity. To bolster threat detection, I configured Reliable Source Port Analysis (RSPAN) for efficient monitoring of ICS traffic, ensuring early threat identification. My responsibilities also encompassed monitoring ICS, OT, and IoT devices using Nozomi Appliances, promptly identifying and responding to security threats. Device health management was critical, and I adeptly utilized the Science Logic Monitoring tool to address hardware issues, ensuring uninterrupted security operations. I enhanced network visibility by employing Wireshark for traffic analysis, identifying potential threats and using ServiceNow for improved network visibility. My contributions extended to security rule development, where I tailored SNORT rules for various vendor devices, strengthening our security posture against diverse attack vectors. Moreover, I conducted vulnerability assessments, leveraging the MITRE ATT&CK framework to evaluate Common Vulnerabilities and Exposures (CVEs). This empowered us to make informed decisions on potential impacts and take necessary mitigation steps. To offer a clear and insightful overview of our security status, I generated comprehensive dashboards and reports through adept query crafting. In this role, my commitment to cybersecurity and collaboration was integral to Caterpillar's robust network security infrastructure. Show less

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  Microland Limited

  Feb 2024 - now

  Senior Manager - Digital Network and Security