LAJPAT SHARMA
Ghaziabad
Summary
Results-oriented Network and Wireless Infrastructure Specialist with 15 years of experience in enterprise networking, wireless technologies, and network automation. As a Senior Technical Specialist (L4), expertise includes Cisco routing and switching, SD-WAN, and data center technologies. Skilled in troubleshooting complex network issues, conducting packet analysis, and managing critical incidents to enhance operational efficiency.
Overview
1
1
Certification
16
16
years of professional experience
Work History
Senior Technical Specialist (L4) – R&S / Wireless / SD-WAN / Security / Meraki / ACI / Automation
NTT DATA GDC INDIA Pvt Ltd.
11.2020 - Current
- Oversaw Cisco routing, switching, wireless, SD-WAN, security, and data center operations to ensure optimal network performance.
- Managing SD-WAN Viptela migration activities and ZBF policy implementation.
- Diagnosed and resolved wireless issues including RF interference, client drop-offs, authentication failures, and performance degradation, enhancing user experience.
- Automating IOS upgrades and network tasks using Python and Jinja2.
- Configured Cisco Meraki dashboard and deployed templates to streamline network management and improve operational efficiency.
- Supporting Cisco ACI operations including tenant and bridge domain configuration.
- Performing Cisco WLC upgrades manually and via DNAC rolling upgrades.
- Performing packet capture analysis using Wireshark, Embedded Packet Capture, and ExtraHop.
- Handling infrastructure changes and deployments following enterprise change management processes.
- Providing mentoring and technical guidance to junior engineers.
- Successfully managed critical P0/P1 incidents and enterprise-wide outages.
- Achieved high success rates for network change implementation.
- Improved operational efficiency through automation initiatives.
Cloud Ops Engineering Specialist (L3) – R&S / Wireless / ISE
Accenture Solutions Pvt Ltd.
05.2020 - 11.2020
- Supported enterprise LAN/WLAN/ISE environments, ensuring seamless connectivity for global customers.
- Managed Cisco ISE policy creation and certificate renewals, enhancing security compliance across multiple client networks.
- Facilitated enterprise LAN, WLAN, and ISE environments for global customers to ensure connectivity.
- Assisted in managing Cisco Prime and SD-WAN operations to maintain network performance.
- Assisted in failover and network resiliency activities, contributing to uninterrupted service availability.
- Mentored team members on wireless technologies and troubleshooting.
Senior Specialist (L2+) – R&S / Wireless
HCL Technologies Ltd.
08.2018 - 04.2020
- Delivered 24x7 LAN/WAN/WLAN support, ensuring optimal performance for global enterprise customers.
- Facilitated WLAN design, RF planning, and implementation projects, enhancing network reliability and performance.
- Resolved wireless slowness, connectivity issues, and roaming problems, improving user experience and network reliability.
- Collaborated on projects to improve network performance. Cisco SDN and network transformation initiatives.
- Provided support for SD-WAN and Cisco Prime operations to ensure effective network management.
- Coordinated with cross-functional teams for large-scale deployments.
Network Specialist (L2)
Orange Business Services
Gurgaon
03.2016 - 08.2018
- Monitored enterprise network infrastructure and WAN circuits.
- Oversaw VPN gateways and network infrastructure devices to enhance security and connectivity.
- Supported LAN/WAN/WLAN operations, ensuring swift incident resolution.
- Managed VPN gateways and network infrastructure devices, optimizing connectivity and security.
- Identified and resolved access point and wireless LAN controller issues to ensure optimal network performance.
- Maintained near 100% network uptime, directly contributing to business continuity.
- Recognized for handling critical incidents and crisis management.
- Acknowledged for exceptional customer service.
Network Engineer
HCL Comnet Ltd.
Noida
08.2010 - 02.2016
- Delivered first-level support for enterprise network environments to ensure reliable connectivity and user satisfaction.
- Assisted in network device deployment and troubleshooting.
- Provided first-level support for enterprise network environments.
- Coordinated incident handling and escalation processes to resolve network issues efficiently.
- Supported network device deployment and troubleshooting to maintain optimal network performance.
Education
MBA - Distance Education
Swami Vivekanand Subharti University
B.Sc. (PCM) -
William Carey University
12th - UP Board
VSS Inter College
10th - UP Board
VSS Inter College
Skills
- Enterprise Network Operations
- Wireless LAN & RF Troubleshooting
- SD-WAN (Cisco Viptela)
- Cisco DNA Center (DNAC)
- Cisco Identity Services Engine (ISE)
- Data Center Networking (Nexus & ACI)
- Network Automation (Python, Jinja2, RAP)
- Routing & Switching
- LAN/WAN Support
- Incident & Change Management
- Cloud Networking (Azure & GCP)
- Network Performance Monitoring
- Packet Capture & Analysis
- Wireless Site Surveys & Optimization
- Firewall policies
- Infrastructure migration
- OSPF
- BGP
- MPLS
- MPLS L3VPN
- IPsec
- Cisco ISR Routers & Catalyst Switches
- Wireless Technologies
- 80211 a/b/g/n/ac/ax
- CAPWAP
- LWAPP
- FlexConnect
- Autonomous APs
- RF Optimization & Wireless Troubleshooting
- WLAN Configuration & AVC
- Wireless Client Connectivity Troubleshooting
- Wireless LAN Controllers (WLC)
- Cisco WLC 2500, 5508, 5520, 7840, 8540, 9800
- IOS Upgrades
- HA
- LAG
- RF settings
- Policy Tags
- Site Tags
- AP & Switch Provisioning
- Template Management
- IOS Upgrade Automation
- Network Hierarchy & Map Management
- Certificate Renewal (PAN/PSN)
- Authentication Policies
- Rule Creation & Troubleshooting
- Legacy WAN to SD-WAN Migration
- ZBF Policy Creation
- Template provisioning
- Troubleshooting Control/Data Plane Issues
- Cisco Nexus 2K, 5K, 7K
- VPC
- FEX
- VDC
- Cisco ACI Fabric
- Tenant
- VRF
- Bridge Domain
- EPG
- Leaf & Spine Replacement
- ACI Operational Troubleshooting
- Microsoft Azure Networking
- VNET
- NSG
- VPN Gateway
- Azure Firewall
- ExpressRoute
- Private Link
- DNS
- DDOS
- Bastion
- Network Watcher & Diagnostics
- Google Cloud Platform (GCP)
- Security and Load Balancing
- Next-Gen Firewall
- FMC
- Cisco ACE 4710
- Application Delivery Controller
- Load Balancer Management
- Cloud Security Solutions
- Cisco Meraki Dashboard
- Juniper Mist Wireless
- Mist AP24, AP34, AP43, AP45
- Monitoring & Troubleshooting Tools
- Cisco Prime
- DNAC Assurance
- SolarWinds
- ExtraHop
Certification
- Cisco Certified Network Associate (CCNA)
- Cisco Certified Network Professional – Routing & Switching (CCNP R&S)
- Cisco Certified Network Professional – ENCOR
- Cisco Certified Network Professional – Enterprise Wireless (ENWLSI)
- Cisco Certified Network Professional – Data Center
- ExtraHop Network Analysis (ENA)
- Palo Alto PCNSA
- CWNA
- CWNP
- ITIL
- Azure Infrastructure
- Google Cloud Platform (GCP)
- F5 BIG-IP LTM
Languages
- English
- Hindi
- English
- Hindi
Additional Highlights
- Strong expertise in enterprise wireless troubleshooting and RF analysis.
- Experience handling large-scale migration and transformation projects.
- Excellent stakeholder communication and crisis management skills.
- Proven ability to work in global support environments.
- Strong analytical skills in packet-level troubleshooting and root cause analysis.
- Hands-on experience with network automation and infrastructure modernization.
Technical Skills
- Strong expertise in enterprise wireless troubleshooting and RF analysis.
- Experience handling large-scale migration and transformation projects.
- Excellent stakeholder communication and crisis management skills.
- Proven ability to work in global support environments.
- Strong analytical skills in packet-level troubleshooting and root cause analysis.
- Hands-on experience with network automation and infrastructure modernization.
Global Opportunities
- Strong expertise in enterprise wireless troubleshooting and RF analysis.
- Experience handling large-scale migration and transformation projects.
- Excellent stakeholder communication and crisis management skills.
- Proven ability to work in global support environments.
- Strong analytical skills in packet-level troubleshooting and root cause analysis.
- Hands-on experience with network automation and infrastructure modernization.
Personal Information
- Strong expertise in enterprise wireless troubleshooting and RF analysis.
- Experience handling large-scale migration and transformation projects.
- Excellent stakeholder communication and crisis management skills.
- Proven ability to work in global support environments.
- Strong analytical skills in packet-level troubleshooting and root cause analysis.
- Hands-on experience with network automation and infrastructure modernization.
Timeline
Senior Technical Specialist (L4) – R&S / Wireless / SD-WAN / Security / Meraki / ACI / Automation
NTT DATA GDC INDIA Pvt Ltd.
11.2020 - Current
Cloud Ops Engineering Specialist (L3) – R&S / Wireless / ISE
Accenture Solutions Pvt Ltd.
05.2020 - 11.2020
Senior Specialist (L2+) – R&S / Wireless
HCL Technologies Ltd.
08.2018 - 04.2020
Network Specialist (L2)
Orange Business Services
03.2016 - 08.2018
Network Engineer
HCL Comnet Ltd.
08.2010 - 02.2016
10th - UP Board
VSS Inter College
12th - UP Board
VSS Inter College
B.Sc. (PCM) -
William Carey University
MBA - Distance Education
Swami Vivekanand Subharti University