Shrikant Sain
Jaipur, India | Open to Relocation / Remote | |
Summary
Senior Network & Security Engineer with 10+ years of experience supporting enterprise, data center, and large-scale government network environments. Deep expertise in Palo Alto Networks firewalls, Zero Trust access (Zscaler ZPA), Leaf-Spine data center architecture, and routing & switching technologies. Proven experience in firewall migration, security policy and NAT management, WAN/MPLS operations, and 24×7 ITIL-based network support. Results-driven Network Security Engineer with proven ability to complete tasks efficiently and productively. Specialize in firewall management, intrusion detection systems, and risk assessment strategies. Excel at problem-solving, teamwork, and adaptability, ensuring top performance in fast-paced environments.
Overview
11
11
years of professional experience
1
1
Certificate
Work History
Senior Network & Security Engineer
HCL Technologies
jaipur
2022.12 - Current
Managed Palo Alto firewalls (PA-3220 & 3420), including security policies and NAT configurations.
Implemented Zscaler ZPA for Zero Trust remote access to enhance security measures.
Migrated firewalls while resolving routing, WAN, and MPLS challenges.
Collaborated with ISPs and internal teams to swiftly address priority one and two incidents.
Network Engineer - Data Center & Leaf-Spine Networks
Inspira Enterprises Limited
2021.07 - 2022.11
Configured Cisco ASR 9010, Catalyst series, and Nexus switches to enhance network efficiency.
Implemented BGP, OSPF, HSRP, VRRP, and VXLAN protocols to strengthen reliability.
Deployed Cisco ACI with Nexus Spine (9508) and Leaf (7K) architecture to improve scalability.
Administered DHCP services and assigned IP addresses to optimize resource management.
Network Administrator
Terracis Technologies Ltd. (IL&FS; Technologies)
2020.04 - 2021.07
Supported routing and switching infrastructure for State Data Center.
Configured VLANs, inter-VLAN routing, and port channels for improved network segmentation.
Monitored network performance utilizing WhatsUp Gold, HP, and CA tools.
Handled incidents and service requests per SLA and ITIL standards.
Executed troubleshooting for Brocade VDX 8770 and ICX 7450 switches.
Orchestrated setups for VLANs, ACLs, EtherChannel, and Spanning Tree to enhance performance.
Managed Cisco ASR 9010, Catalyst 9500, 9300, and 9400 devices to ensure reliability.
Network Engineer
Hi-Tech Informatics Pvt. Ltd.
2019.03 - 2020.03
Supported LAN, WAN, and MPLS network operations to ensure optimal performance.
Managed connectivity for over 2000 MPLS circuits, maintaining service reliability.
Troubleshot routers, switches, and WAN connectivity issues to minimize downtime.
Ensured high availability for government and enterprise users across all networks.
Network Management Engineer
(N)Code Solutions
2017.09 - 2019.02
Executed proactive monitoring and managed 24×7 NOC operations to ensure optimal performance.
Troubleshot routing and switching issues across enterprise networks, minimizing downtime.
Conducted configuration backups and performed preventive maintenance to enhance network reliability.
Prepared monthly and quarterly reports on network health to inform stakeholders.
Network / NMS Engineer
Trimax IT Infrastructure Services Ltd.
2015.05 - 2017.09
Supported large-scale backbone networks for e-Governance platforms.
Managed Cisco core switches (6509, 4510R, 4507R).
Supported wireless infrastructure, IP telephony, and NMS.
Performed upgrades, backups, and continuous network monitoring.
Education
Computer Science
Rajasthan Technical University
Skills
Firewall and security management
- Palo Alto Networks expertise
- Routing and switching protocols
- Data center virtualization
- Wireless and cloud solutions
- Network monitoring tools
- Firewall management
- Network troubleshooting
- BGP configuration
- Data center operations
- Incident resolution
- Zscaler ZPA (Private Access)
- Zscaler ZIA (Internet Access)
- Zscaler ZDX (Digital Experience Monitoring)
Certification
CCNA
Timeline
Senior Network & Security Engineer
HCL Technologies
2022.12 - Current
Network Engineer - Data Center & Leaf-Spine Networks
Inspira Enterprises Limited
2021.07 - 2022.11
Network Administrator
Terracis Technologies Ltd. (IL&FS; Technologies)
2020.04 - 2021.07
Network Engineer
Hi-Tech Informatics Pvt. Ltd.
2019.03 - 2020.03
Network Management Engineer
(N)Code Solutions
2017.09 - 2019.02
Network / NMS Engineer
Trimax IT Infrastructure Services Ltd.
2015.05 - 2017.09
Computer Science
Rajasthan Technical University
Secondary Skills
- Zscaler ZPA, ZIA, ZDX
- VPN technologies,
- Data center (Cisco ACI)
Primary Skill
Palo Alto Firewalls
Routing & Switching
Languages
- English
- Hindi
Secondary Skills
- Zscaler ZPA, ZIA, ZDX
- VPN technologies,
- Data center (Cisco ACI)
Primary Skill
Palo Alto Firewalls
Routing & Switching