Mangesh Parab

Key Responsibilities

● Design and manage large-scale Data Center infrastructure based on ARISTA / CISCO
Spine-Leaf architecture.
● Implement and maintain VXLAN EVPN overlay networking for scalable data center
deployments.
● Manage Palo Alto and Fortinet next-generation / Chassis firewalls across production
environments.
● Design and maintain network segmentation using VRFs and route leaking.
● Manage OSPF, BGP-based WAN and Data Center connectivity.
● Implement security controls and network architecture standards.
● Lead network migration and infrastructure transformation projects.
● Perform root cause analysis and drive service improvements.
● Coordinate with ISPs, vendors, cloud providers, and business stakeholders.
● Actively handle internal and external / Clients audits.

Key Achievements

● Successfully implemented VXLAN EVPN-based Data Center Fabric using Arista / Cisco
switches.
● Successfully delivered VMware to KVM migration project for production workloads,
achieving major cost optimization through reduction of virtualization licensing expenses
while ensuring zero critical service disruption.
● Led different times internet’s Business Infrastructure Segregation Project.
● Delivered Data Center migration projects with minimal downtime.
● Implemented network micro-segmentation for enhanced security.
● Optimized Data Center network architecture and operational processes.
● Supported enterprise-scale production environments serving millions of users.

Key Responsibilities
● Managed enterprise network and security infrastructure.
● Administered Fortinet Firewalls including 1100E, 1000D, 2500E and related platforms.
● Managed OSPF routing, HA clusters, VDOMs, firewall policies and VPN infrastructure.
● Administered Cisco routers and switches including Catalyst and Nexus platforms.
● Implemented FortiAnalyzer logging and reporting solutions.
● Managed Bluecoat Proxy infrastructure and Active Directory integrations.
● Administered Cisco ISE and TACACS-based authentication systems.
● Managed F5 BIG-IP WAF implementation and operations.
● Coordinated with telecom providers for WAN and Internet connectivity.

Major Achievement
Data Center Migration Project - Pune
● Successfully executed Data Center migration activities.
● Led network infrastructure migration involving Cisco and Fortinet platforms.
● Coordinated with multiple vendors and stakeholders to ensure seamless migration.

Key Responsibilities
● Provided L3 technical support and escalation management for enterprise network and
security infrastructure across multiple business locations.
● Administered and managed enterprise firewall environments including SonicWall (TZ &
NSA Series), Fortinet (70D, 80D, 90D), Cyberoam, and IBM security appliances.
● Managed Data Center network infrastructure including firewalls, Layer 2/Layer 3
switching, VLAN configuration, and secure VPN connectivity.
● Administered centralized firewall management platforms including SonicWall GMS and
Cyberoam Central Console for policy deployment, monitoring, and compliance.
● Managed Disaster Recovery (DR) network infrastructure and implemented IPSec VPN
solutions for secure inter-site connectivity.
● Maintained network, firewall, IP addressing, and infrastructure audit documentation to
ensure operational compliance and governance.
● Administered FileZilla FTP Server including user provisioning, access management, and
operational support.
● Managed C-Zentrix VoIP platform including user administration, campaign management,
channel allocation, backup, and restoration activities.
● Conducted Proof of Concepts (POCs) and evaluations for enterprise security and remote
proctoring solutions including eScan SMB, Kryterion, Mettl, and ProctorOne.
● Coordinated with firewall vendors and service providers for technical support, license
renewals, subscription management, and issue resolution.
● Collaborated with Internet Service Providers (ISPs) to troubleshoot network outages,
latency issues, and WAN connectivity challenges, including BGP routing and
announcement activities.

● Managed the installation, configuration, upgrade, testing, troubleshooting, and
maintenance of enterprise network infrastructure, servers, and IT systems.
● Administered Microsoft Active Directory environment, including user provisioning, group
policy management, access control, folder permissions, and roaming profiles.
● Maintained comprehensive infrastructure documentation covering network topology, IP
addressing schemes, switch uplinks, core interfaces, backup reports, and configuration
records.
● Managed enterprise endpoint security solutions including Quick Heal Antivirus Server,
implementing device control, USB restrictions, email security, and malware protection
policies.
● Administered and supported SonicWall NSA 240 Firewalls and Cisco Catalyst
2960/2950 switching infrastructure to ensure secure and reliable network operations.
● Assisted in internal and external compliance audits, contributing to successful ISO
9001:2008 certification and audit readiness activities.
● Managed VoIP infrastructure, including user provisioning, extension management, call
recording administration, and operational support.
● Performed day-to-day network operations including port provisioning, device monitoring,
configuration backups, incident troubleshooting, and preventive maintenance.
● Supported enterprise email client deployments and user configurations using
Thunderbird Mail Client.
● Coordinated with ISP providers, hardware vendors, and AMC partners for infrastructure
planning, support, maintenance, and issue resolution.
● Implemented and managed Global VPN solutions to enable secure remote access and
work-from-home connectivity for employees.
● Ensured high availability and operational stability of IT infrastructure through proactive
monitoring, troubleshooting, and adherence to best practices.

● Administered and managed Fortinet FortiGate firewalls, including security policy
implementation, troubleshooting, Active Directory integration, web filtering, and secure
internet access management.
● Designed and implemented network security policies for inter-VLAN and LAN-to-WAN
communication, ensuring secure and optimized traffic flow across the enterprise
network.
● Configured and managed DHCP services for multiple VLANs, ensuring efficient IP
address allocation and network availability.
● Implemented Equal-Cost Multi-Path (ECMP) routing across dual WAN links to provide
load balancing, redundancy, and high availability for internet services.
● Managed HP Layer 2 switching infrastructure, including VLAN creation, trunk
configuration, and LACP-based link aggregation for server connectivity.
● Administered VMware ESXi 5.1 virtualization environment, including vSwitch
configuration and VLAN-based traffic segmentation for virtual workloads.
● Deployed and managed Microsoft Windows Server 2012 Domain Controllers, supporting
centralized authentication, authorization, and directory services.
● Implemented and maintained Windows Server Update Services (WSUS) for centralized
patch management and automated update deployment across servers and endpoints.
● Configured and administered FreeNAS storage solutions integrated with Active
Directory, providing centralized and secure file-sharing services.
● Supported enterprise network, server, and virtualization infrastructure to ensure high
availability, performance, and operational efficiency.

Client: Mahindra Finance
Key Responsibilities
● Supported day-to-day operations of enterprise Data Center infrastructure, including
network connectivity, structured cabling, rack provisioning, power management, cooling
systems, and server deployments.
● Coordinated infrastructure provisioning, relocation, and reconfiguration activities for
servers, network devices, and critical IT systems within the Data Center environment.
● Configured and managed Cisco routing and switching infrastructure, including Cisco
3845 Routers, Catalyst 2960/2950/3750 Switches, VLANs, VTP, Route Maps, and Port
Security.
● Implemented Layer 2 and Layer 3 network configurations to support business-critical
applications and branch connectivity.
● Administered VMware ESX 5.0 virtualization environment and managed virtual machine
provisioning and maintenance.
● Monitored and managed remote branch connectivity, ensuring high network availability
and operational performance.
● Configured and maintained Fortinet firewalls, including ACL implementation, network
security policies, and traffic control mechanisms.
● Managed NAS storage solutions and backup infrastructure to ensure data availability
and business continuity.
● Performed configuration backup and restoration of network devices, including Cisco IOS
images and switch/router configurations.
● Utilized ArcSight SIEM for security event monitoring, user activity analysis, and
compliance reporting.
● Managed enterprise backup operations using Veritas Backup Exec and IBM Tape Library
solutions, including full, incremental, and differential backup strategies.
● Generated infrastructure inventory and configuration reports using BELARC and Alloy
Discovery tools.
Client: Techprocess Solutions Ltd. (IT Engineer)
Key Responsibilities
● Managed end-to-end IT infrastructure operations including network, security, server
administration, backup, monitoring, and user support.
● Administered Cisco Layer 2 and Layer 3 switching infrastructure, including VLAN design,
implementation, and troubleshooting.
● Managed Juniper firewall infrastructure supporting secure VPN connectivity for
business-critical applications.
● Implemented and maintained enterprise backup solutions using Symantec Backup Exec,
NTBackup, LTO, and DLT tape technologies.
● Supported AIX, Windows Server, and Active Directory environments, including user
administration, access management, and Group Policy implementation.
● Managed WSUS infrastructure for centralized patch management and operating system
updates across enterprise systems.
● Administered enterprise antivirus and endpoint security solutions, including Trend Micro
Antivirus and host-based security controls.
● Conducted network monitoring, performance analysis, and troubleshooting using tools
such as Wireshark, OpManager, Spiceworks, and SALive.
● Managed file servers, shared storage, user access permissions, and enterprise data
protection policies.
● Led server room restructuring and LAN infrastructure optimization initiatives to improve
operational efficiency and service reliability.
● Performed proactive infrastructure monitoring, capacity planning, and event
management to ensure system stability and availability.