Thenan N

Experienced Guardicore Segmentation Consultant with 3 years of experience in network security and micro segmentation. Specialized in deploying and managing Guardicore Centra (Akamai Segmentation) solutions to enhance visibility, reduce attack surface, and prevent lateral movement. Proven expertise in data center security, zero trust architecture, and policy enforcement across hybrid environments. and 5.8 years as Windows Administrator.

Proficient in managing software deployment, patch management, and system updates across large-scale enterprise networks. Skilled in troubleshooting SCCM-related issues and optimizing system performance. Proven ability to streamline IT operations and enhance end-user experience through effective SCCM management strategies.

Senior System Engineer - Infosys Limited - Bengaluru, Karnataka

(2022-02)

• Implemented Akamai Guardicore Micro segmentation across endpoints, servers, and hybrid workloads for Infosys locations globally.
• Controlled east-west traffic to reduce lateral movement risks and strengthen security posture across enterprise environments.
• Designed identity-based segmentation policies aligned with Zero Trust principles.
• Managed policy lifecycle activities, SSO integrations, certificate renewals, and agent upgrade activities.
• Led Guardicore aggregator migrations from legacy HCI to Nutanix infrastructure.
• Performed policy tuning, traffic flow analysis, and dependency mapping for secure application communication.
• Supported agent deployment, troubleshooting, and segmentation enforcement across enterprise environments
• Quarantined non-compliant and unpatched assets based on security policies to reduce security risks
• Coordinated with application, server, and security teams for policy validation and production rollout activities across Infosys global locations.
• Monitored segmentation events and optimized policies to minimize operational impact while maintaining security compliance

System Engineer - AceMicromatic Mfg Intel Pvt Ltd - Bengaluru, Karnataka

(2021-02 - 2022-20)

• Installation, Configuration & first level troubleshooting of windows server 2008,2012,2016.
• Installation, Configuration & Troubleshooting File & Printer servers.
• Configuration & Administration of DNS & DHCP Servers.
• Scope Creation & reservation of IP in DHCP server as per the request Maintain the end-user call issues on Share point closing the IT ticket Based on the user confirmation.
• AD maintenance User Account creation and providing the delegation on user Basis.
• AD Users Password Unlock, reset, Modify etcCreating and Managing Distribution and Security Groups in Exchange Server 2016.
• Forti-client VPN configuration in client Machine.
• Manages user access like USB access, Admin rights, RDP access, Internet access.
• Monitors system performance by using (performance monitor, event viewer)

System Engineer - I-Source Infosystems - Bengaluru, Karnataka

(2018-10 - 2021-07)

• Resolving L1 and L2 tickets for various engagements and also for enterprise users physically or over remotely as per SLA.
• Checking daily health check reports for various engagements and based on client requirements.
• Maintaining various groups under Active directory and providing access and restrictions based on client policies and regulations.
• Providing technical assistance for hardware-based issues in various models of laptops and desktops. Preserve inventory of installed hardware, and software, manage software licensing, and create policies and procedures for upgrades.
• Doing MBAM and SCCM compliance for various assets belongs to Enterprise as well as Engagements. Imaging various client-based OS with all necessary software and installing tools for Authentication Users delicately.

Consultant - CMS Pvt Ltd - Bengaluru, Karnataka

(2017-07 - 2018-08)

• Troubleshooting the issue in Hardware and Software based complaints, like Desktop, Laptop, Tablet, workstations Server resolving as per SLA.
• Taking Remote sessions over a network and fixing system issues with the help of remote Applications known as RDP, Quick Assist, etc.
• Handling various Excel issues and Outlook data file issues.
• Performing various MDT with group policy restrictions and also registry.

CSE - Rajalakshmi Engineering College (2016-04)