Tejindra Singh

Cisco Certified Network Associate (CCNA) and AWS Certified professional with 6+ years of experience in enterprise network infrastructure, security architecture, and end-to-end solution deployment. Currently serving as a Cisco ISE & Security Consultant at Capgemini, specializing in full-lifecycle deployment of Zero Trust access solutions, Cisco Secure Firewall (FTD), and Cisco Umbrella. Proven track record of deploying, configuring, and integrating enterprise security platforms from greenfield to production — including ISE policy architecture, FTD/FMC implementation, and pxGrid-based multi-platform integrations across global client environments.

ISE & Security Consultant — Deployment Engineer - Capgemini

(2025-01)

• Led end-to-end deployment of Cisco ISE across enterprise environments — covering installation, node configuration (PAN/PSN/MNT), policy set design, 802.1X, MAB, and Profiling to enforce Zero Trust network access.
• Deployed and configured Cisco Secure Firewall (FTD) via Firepower Management Center (FMC) — implemented Access Control Policies, SSL Decryption, IPS, and network segmentation rules from initial setup to production go-live.
• Provisioned and deployed Cisco Umbrella (Secure Internet Gateway) for enterprise clients — configured DNS-layer security policies, cloud-delivered firewalls, and roaming client protection for off-network and branch users.
• Executed full pxGrid integration between Cisco ISE, Cisco Secure Firewall, and Umbrella — enabling identity-based policy enforcement and rapid automated threat containment across the unified security stack.
• Designed and deployed Zero Trust access architecture across diverse enterprise environments — spanning on-premises, cloud, and hybrid infrastructure.
• Conducted comprehensive ISE health audits and performance tuning post-deployment — identifying bottlenecks and implementing proactive remediation to ensure 99.9% system availability.
• Performed deep-dive root cause analysis on complex post-deployment network security incidents, significantly reducing Mean Time to Resolution (MTTR) for global clients.
• Served as technical advisor for feature adoption and third-party security integrations — guiding clients from requirements gathering through solution deployment and handover.

Senior Systems Engineer / Technology Analyst - Infosys

(2019-01 - 2025-01)

• Systems Administration: Deployed and managed Windows Server environments — overseeing provisioning, stability, patching lifecycle, and resource allocation.
• Identity & Access Management: Deployed and administered Active Directory — managing user accounts, directory services, and group policies; foundational to current AAA and identity-based security expertise.
• Network Operations: Orchestrated end-to-end provisioning and delivery of Ethernet circuits — coordinating with third-party vendors from order placement to circuit activation.
• Proactive Troubleshooting: Resolved complex delivery and server-side deployment roadblocks as primary point of contact for internal stakeholders.
• Leadership & Development: Conducted technical training sessions and mentored Operations Executives on deployment procedures, fostering a collaborative, high-performance delivery culture.

Bachelor of Science - Information Technology - Mumbai University

10+2 - Board of Higher Secondary Education, Mumbai

10th - Board of Secondary Education, Mumbai