Arindam Roy
Kolkata
Summary
14 years of experience directing data center management as network security support specialist with background in IT infrastructure involving network and security with Cisco, Juniper, Palo Alto, ASA, Firepower, Proxy, and Infoblox across telecom and IT fields.
Overview
3
3
Languages
1
1
Certification
14
14
years of professional experience
Work History
Network Tech Support Specialist
Cognizant
Kolkata
01.2022 - Current
- Management and implementation of Prisma SD-WAN, including policy updates, route addition and deletion, device OS updates, and replacement of faulty or EOL devices.
- Managing data center operations, including defining new zones (production, DMZ, test), user/server policies, and zone definitions.
- Aruba Wireless setup with office network. Troubleshooting and reconfiguring wireless networks, including replacing and reconfiguring wireless devices and access points.
- Managing Layer 3 and Layer 2 network devices, including routing (BGP and OSPF route add/delete), reconfiguration with static route optimization.
- Managing IP schema and subnetting over the globe.
- Managing MPLS links, including fail-over, link capacity checks, and bi-annual fail-over activities.
- Switching - commissioning new switches, adding/removing, replacing faulty switches, and configuring switch ports.
- Link commissioning or replacement, creating SVI, etc.
- Troubleshooting load balancers (F5) related to server profiles, enabling/disabling ports, and certificate renewal.
- Managing Layer 3 network and firewall devices, including health checks, reconfigurations, and updates.
- Executed data centre migration to enhance operational efficiency and minimise downtime.
L3 Network & Security support Specialist
IBM India Pvt Ltd
Noida
09.2012 - 12.2021
- Management & Implementation of Cisco ASA, Firepower, Palo-alto firewalls – Policy Update / Validations, Remove unrequired policies, Devices OS update, Replace Faulty or EOL Devices, policy fine tune, Global policy, Nat Configurations etc.
- L3 Network & Firewalls devices – GSD , Security Devices Health Check / Reconfigurations / update.
- Established S2S setup with external companies, developed S2S policy, and supported VPN infrastructure while conducting remote VPN checks with users.
- NSX firewalls – Policy implementations – add / remove & troubleshoot with Server & access.
- Managing L3 & L2 Network devices – Routing – BGP Route add / delete, reconfiguration with Static route optimisation, MPLS Links manage & Fail-over, Link’s capacity check & fail-over Activity yearly and bi-yearly.
- Switching – New Switch Commission – Add / Remove, replace faulty switch, Switch port configuration, Link Commission or replacement, Creating SVI etc.
- Proxy (Forcepoint) – Proxy, Web Security, URLs Filtering, Websense etc.
- Resolved L2 issues with load balancer (F5) for server profiles by enabling and disabling ports.
- Troubleshot and reconfigured L2 wireless devices, replacing and reconfiguring access points to maintain connectivity.
- Managed Data centre Operations – new zone (Production, DMZ, Test ) define , User / Server policy & zone define.
- Conducted power fail-over tests, uplink fail-over tests, and device redundancy checks for HA devices within data centre operations.
- Monitored data centre devices and links, responding to issues using SolarWinds for prompt resolution.
Education
Bachelor of Arts -
Calcutta University
MBA - IT
Skills
- Cisco ASA
- Firepower
- Palo-alto firewalls
- VPN
- URL filtering
- Network security
- Policy management
- Firewall configuration
- BGP
- OSPF
- HSRP
- IBGP
- EBGP
- MPLS
- IP Tunneling
- Network Switch
- DHCP
- DNS
- Infoblox
- Cisco WLC
- Cisco Nexus
- SolarWinds
- Whatsup
- NCM
- Kiwicat
- Syslog
- Technical issues analysis
- Team collaboration
- DS3
- STM
- E1
- ITNM
- Syslog
Certification
CCNA, CCNP (Routing), JNCIA, JNCIS, C Language, Basic Electronics
Language
Bengali
English
Hindi
Custom
- Internet surfing
- Song listening
Personal Information
Passport Number: U 5061657
Timeline
Network Tech Support Specialist
Cognizant
01.2022 - Current
L3 Network & Security support Specialist
IBM India Pvt Ltd
09.2012 - 12.2021
Bachelor of Arts -
Calcutta University