Data Center Network Architect

SANJEEV KUMAR

linkedin.com/in/sanjeevkrumar**

o, T +1-945-***-****, ************@*****.***

PROFESSIONAL SUMMARY

Accomplished Network Architect with over 17 years of experience in strategic design, deployment, optimization, modernization and continuous improvement of network and security infrastructures across AWS Cloud, data centers, enterprises, call centers, and ISP networks. Proven track record in delivering comprehensive technical, operational, and business solutions, leading IT protocols, and managing budgetary frameworks.

SKILLS

Network Design, Implementation & Documentation: Cisco ACI (SDN), SD-WAN (Meraki, Viptela & Versa), LAN/WAN, AWS networking, enterprise and data center network modernization (optimization, transformation and migration, segmentation, micro-segmentation, integration of SDN to cloud and on-premises infrastructures). Proficient in software and hardware upgrades, IP subnetting, data center cabling, high availability (HA), disaster recovery (DR), compliance assessments, network and security auditing, and business continuity planning. Skilled in creating high-level and low-level design documents (HLD/LLD) and conducting user acceptance testing (UAT). Routing, Switching & Security: Cisco, Juniper (OSPF, BGP, EIGRP, MPLS, MP-BGP & BFD), Nexus, Catalyst, Cisco Pix, ASA, Palo Alto

(IPS/DPS, Tunnel, IPsec VPNs, ACLs, Intrusion Prevention Systems) Performance & Monitoring: VRRP, HSRP, Load Balancing (Cisco, F5), NetFlow, IPFIX (Traffic Analysis) Leadership & Management: Team Building, Vendor & Customer Relationships CERTIFICATIONS

DC-ACI (CERTIFIED ACI IMPLEMENTATION) DCID (DESIGNING CISCO DATA CENTER INFRA) ENSDWI (SD-WAN Solutions) CCDP (CISCO CERTIFIED DESIGN PRO.) CCNP (CISCO CERTIFIED SERVICE PROVIDER) CCNP (CISCO CERTIFIED R&S) CCDA (CISCO CERTIFIED DESIGN ASS.) CCNA (CERTIFIED NETWORK ASS.) ITILV4 (IT INFRA LIBRARY) EDUCATION

MASTER, COMPUTER APPLICATION - SHOBHIT UNIVERSITY MAY 2012 - DEC 2014 BACHELOR, COMPUTER APPLICATIONS - MADURAI KAMARAJ UNIVERSITY MAY 2007 - DEC 2009 DIPLOMA, INFORMATION TECHNOLOGY - S.J.P. POLYTECHNIC JUN 2002 - DEC 2005 PROFESSIONAL EXPERIENCE

Capgemini America, Network Architect

Clients: Charter- Spectrum & At Home

Jan 2024 –Present

Responsibilities: Actively contributed significantly to high-level strategic meetings with senior management, shaping the planning and execution of future business growth initiatives, particularly in Public, Private Cloud, Data Centers, enterprise networks, and security infrastructure technologies. Implement and review design documents from various teams and vendors to assess and enhance network and application performance, availability, security, and scalability. Proactively collaborate with production, cross-functional, Cisco, and diverse vendor teams to address network and security solutions, ensuring eƯective issue escalation. o Private Cloud Design & Deployment: Currently in the process of designing and implementing private cloud infrastructure using Cisco ACI to enhance automation, scalability, and integration with existing network services. o Public Cloud Integration: Deployed AWS network and integrated with on-premises DC using VPN, Direct Connect, TGW peer links, and TGW routing propagation for intra and inter-region connectivity. o Network Moderation: Developed and executed migration strategy for legacy DC network to Cisco ACI fabric, including high/low-level design documents and integration with IP, application firewall, load balancer, and DNS shared services. o Meraki SD-WAN Deployment: Designed, implemented, and executed a comprehensive migration plan for 276 locations, ensuring seamless connectivity and performance.

o Network & Security Audit: Updated network diagrams and identified routing loops and security issues in data centers to enhance network integrity and security.

o Core & Distribution Switch Upgrade: Designed and seamlessly implemented hardware upgrades for core and distribution switches to enhance network performance and reliability.

o Firewall Security: Fine-tuned security policies to enhance data center network security and protect against vulnerabilities, performed Palo Alto firewalls hardware, software upgrades and migration. Zealous Solutions, Network Architect Jun – Dec 2023 o Network & Security Standardization: Standardized network zoning and security protocols to ensure consistency, improve performance, and enhance security across the infrastructure. o Versa SD-WAN Deployment: Configured Versa Director and Analytics for centralized management and monitoring., implemented FlexVNF at branch locations to provide advanced routing, security, and network services, setup networks connections to ensure secure and optimized connectivity across branch oƯice utilized BFD for rapid link failure detection, conducted testing and validation to ensure the deployment's reliability and performance.

Rakuten Symphony, Network Architect, India Apr 2022 – Mar 2023 o Cisco ACI Fabric Deployment: Deployed and managed five Cisco ACI Fabric for both production and R&D environments, enhancing network performance and team eƯiciency. Conducted network and security audits using automation tools, generating comprehensive performance reports. Improved network documentation for team and senior management, ensuring clarity and accessibility. o SD-WAN Design and Implementation: Implemented and managed Viptela SD-WAN Controllers, establishing router connections with vEdge branch routers using various protocols. Configured centralized and localized SD-WAN policies to enhance enterprise network performance, security, scalability, and management. Troubleshot and resolved network issues to ensure optimal performance and reliability.

Wipro Technologies, Network Architect, India Feb 2021 - Mar 2022 Client01: GrameenPhone, Bangladesh

o Multi-Tenant Cisco ACI Fabrics Deployment and Migration: Designed (HLD/LLD) two Cisco ACI Fabrics in a multi-tenant environment, implementing physical and logical network constructs such as access and fabric policies, tenants, VRFs, BDs, APs, EPGs, contracts, filters, and system policies. Established OOB and in-band connectivity to ensure robust network communication. Developed monitoring strategies utilizing Syslog, SNMP, and TACACS protocols to optimize network performance and enhance security. Established L2Out and L3Out connections with F5 LTM, Palo Alto Firewalls, switches, and routers, leveraging Static, OSPF, and BGP routing protocols. Configured Port Channels (PO) and Virtual Port Channels (VPC) for bare-metal and VM servers’ connectivity, integrated OpenStack. Implemented backup solutions for networks and servers to achieve smooth data center migrations from legacy networks to ACI. o Viptela SD-WAN Design and Deployment: Designed (HLD/LLD) and presented cost-eƯective Viptela SD-WAN solutions, emphasizing improved network performance, agility, and cost-eƯiciency to the business. Deployed vManager, vBond, and vSmart Controllers, establishing connections with vEdge routers using OMP, Static, BGP, and OSPF routing protocols. Configured and implemented feature and device templates, both centralized and localized policies, to optimize traƯic. Built a robust monitoring and troubleshooting environment, leading to improved application and network performance, reduced latency, strengthened security, increased availability and scalability, and streamlined management.

Client02: Telenor Myanmar

o Cisco ACI Fabrics Deployment (Private cloud), Migration and Integration with AWS: Designed and implemented Cisco ACI, migrated the customer’s legacy data center network and servers to Cisco ACI. Integrated with NTP, DNS, DHCP, ISE, firewalls, F5, and AWS cloud using VPC, Security Groups, NACL, Internet Gateway, NAT Gateway, Transit Gateway, and peering connections. Ensured seamless connectivity and optimized network performance through comprehensive integration and migration strategies. RSAB IT India, Network Consultant, India Apr 2015 - Oct 2020 Client: Sandals Resorts and Beaches

o Network Architecture Enhancement: Conducted comprehensive performance and security analysis of the existing network, prepared and presented current and proposed network design comparisons to management for network enhancement. Highlighted the benefits of the whitelist model, outlining hardware and software requirements based on recommendations to improve business and network performance, security, and redundancy. Executed an improvement plan, optimizing network infrastructure alignment with organizational objectives. Demonstrated proficiency as a network architect, achieving enhancements in network performance, security, and availability.

o Network Infrastructure Enhancement: Implemented LAN/WAN zoning and multi-layered network segmentation for data center and enterprise networks. Managed diverse network components, including routers, switches, SLB, Sophos proxy, and firewalls. Configured security rules, routing, and switching protocols to optimize performance. Implemented high-availability solutions for seamless operations.

o DNS Implementation and Software Upgrade: Managed a critical project involving DNS and DHCP solution implementation and software upgrades, significantly improving network responsiveness and reliability. Leveraged strategic eƯorts to ensure seamless network operations and contribute to organizational success. Unique Vacations Ltd. (U.V.L), Network Administrator, Nassau, Bahamas & USA Feb 2013 - Apr 2015 Client: Sandals Resorts and Beaches

o Global Network Standardization Project: EƯiciently migrated IP segments, server zones, user zones, and the OSCC (Operational Support and Command Center) to adhere to global network standards. Ensured seamless transitions and strict compliance with standardized network protocols, resulting in improved network security and eƯiciency while aligning the global network structure with industry’s best practices.

o Network Analysis and Documentation: Conducted routine network infrastructure analysis, creating comprehensive documentation and diagrams outlining network traƯic patterns and physical connectivity for global data centers and business locations. Ensured transparency, facilitated troubleshooting, and maintained optimal network performance organization wide. o Network Processes Optimization: Implemented network processes for change and operational management, enhancing performance and minimizing disruptions. Standardized incidents, problems, and change management processes to ensure smoother upgrades and reduced downtime. Established robust operational management practices, showcasing expertise in strategic network and security architecture and a strong dedication to operational excellence. STS Info Technologies, Senior Network Engineer, India May 2012 - Dec 2012 Client: Cisco Systems APAC- PIT (Project Implementation Team) o Cisco Globalization Fleet Standardization Project: Successfully spearheaded the implementation of the Cisco Globalization Standardization Program, including hardware and software upgrades, resulting in significant enhancements. Achieved improved network performance, streamlined operations, simplified network management, and enhanced network security and eƯiciency by aligning the global network structure with industry’s best practices. o Cisco Network Infrastructure Expansion: Expanded Cisco network infrastructure at HCL and TCS oƯshore development centers

(ODCs), implementing strategic solutions for availability, performance optimization, and enhanced security in alignment with Cisco System Global standards. Established a secure Cisco network environment supporting critical oƯshore development operations. Wipro InfoTech, CSE, India Jul 2008 - Feb 2012

Clients: Cisco System, Bharti Airtel-ISP, MTS, and Tata-ISP o MPLS Implementation for Leading Telecom Company: Implemented MPLS installation and integration for an ISP Cloud network infrastructure, utilizing advanced technologies and products such as Cisco, Juniper, MPLS, VRF, OSPF, BGP, MP-BGP, RR, L2-L3 VPN, VPNv4, IPTV, pseudo-wire, and BFD to achieve rapid convergence times. Enhanced network eƯiciency, reduced latency, and improved overall performance. Ensured seamless connectivity, failover, availability, scalability, and performance optimization. o Expansion of DSL/IPTV Services for Commonwealth Games Live Telecast: For the Commonwealth Games, I spearheaded the expansion of DSL/IPTV services to enhance live telecast capabilities. This involved designing and implementing critical network infrastructure, which significantly improved connectivity and the viewing experience for millions of viewers. My eƯorts played a pivotal role in ensuring high-quality, reliable broadcast services, contributing to the overall success of the event. o L2TP Network Services Implementation: I led the implementation of L2TP (Layer 2 Tunneling Protocol) network services, planning and executing the replacement of existing routers with seamless integration. This ensured uninterrupted network connectivity and elevated data roaming services, resulting in improved network performance and enhanced user experience. My eƯorts aligned with the organization's commitment to providing top-tier client services. PCS Technologies Ltd, Network Administrator Jan 2007 - Jul 2008 Client: IBM-Bharti Project.

o WAN and LAN Optimization: Optimization of WAN/LAN network performance through IP migration and infrastructure upgrades. This involved executing WAN communication IP migration to enhance network eƯiciency and reliability and migrating LAN IPs for the User Zone and OSCC (Outsourced Call Center) Zone to improve connectivity and performance. Throughout the process, ensured minimal disruption, maintaining continuous network operations, which resulted in significantly improved connectivity and operational eƯiciency. o DTH Network Redundancy and Infrastructure Enhancement: DTH Network Redundancy and Infrastructure Enhancement project, implemented additional firewalls and L3 switches as failover mechanisms to ensure network reliability in case of any failure. This involved developing and deploying Intranet, Extranet, Internet, Backbone, and DMZ Zones infrastructure, along with executing firewall and L3 switch redundancy for the entire network. These eƯorts significantly improved network availability and performance, reducing downtime and ensuring robust failover capabilities for Bharti DTH. o Data Center Consolidation and Migration: Implemented new firewall policies, executed routing changes, and migrated existing IP segments to the new data center. These actions ensured a seamless transition with minimal disruption to network operations, resulting in the successful consolidation of multiple data centers into a single data center. Artek Enterprises Pvt. Ltd, Network Engineer (Field), India Feb 2005 - Jan 2007 o Provided critical network and system support to customers, enhancing technical expertise and troubleshooting capabilities

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