Aniruddha Bhattacharjee, Senior Network Engineer

Aniruddha Bhattacharjee

Senior Network Engineer

Teva Pharmaceutical

Location
India - Bengaluru
Education
Master's degree, Information Systems
Experience
13 years, 10 Months

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Work Experience

Total years of experience :13 years, 10 Months

Senior Network Engineer at Teva Pharmaceutical
  • India - Bengaluru
  • My current job since January 2020

Roles and Responsibilities:
 Design and support of global network systems, which
comprises of MPLS & VPLS network, Routing, Switching, Wireless, ISE,
Check Point & FortiGate Firewalls, WAN Accelerator, F5 BIGIP(LTM/GTM)
& Radware Alteon load balancers, Global DNS(Ultradns).
 Provide level 3 support for network services and requests.
 Installation of network hardware and software.
 Proactively monitor and ensure performance and availability.
 Respond to critical network incidents and take ownership of
the tickets and work through to resolution.
 Open problem ticket with device vendors and service
providers and ensure timely resolution.
 Automate select network administration tasks through creation
and maintenance of scripts using Python.

Network Engineer at Actuant
  • India - Bengaluru
  • December 2014 to December 2019

Completed Projects:
• Lead onsite projects like new site implementation in Middle
East - integration with Data Center (S2S VPN configuration, Cisco
Anyconnect VPN, 2960-X switch, ASA-5506, Wireless network with LAPs).
• Configured 30+ sites for dual ISP link failover along with S2S VPN
towards DC with pre-empt functionality.
• Configured Cisco Anyconnect SSL for production site with
security features (like Domain validation/User restriction).
• Part of 2 member team which deployed Meraki SD-WAN
solution for set of 5 sites with full mesh/Hub-Spoke configuration.
• Part of 2 member team which Deployed Silver Peak SD-WAN
solution as POC for evaluation.
• Upgraded OS version of global ASA 5506-X firewalls from 9.6(4)3
to 9.8.(3)8.
• Part of the deployment team for Microsoft Azure migration -
completed migration of on-premises applications, infrastructure and
data using Azure Migrate.

Roles and Responsibilities:
 Design and support of network systems, which includes global
MPLS network, Switching, Wireless, ISE, Firewall, WAN Accelerator, F5
Load Balancer and Security infrastructure.
 Implement and troubleshoot various routing protocols such us
BGP, OSPF, EIGRP; switching protocols like VLAN, VTP, Spanning Tree
and L3 redundancy protocols like HSRP, GLBP, VRRP.
 Implement and troubleshoot VPN technologies like GRE Tunnel,
IPSEC and various WAN technologies.
 Manage security solutions, including Cisco ASA, Cisco CWS,
Cisco Umbrella, Cisco FTD and Rapid7 Nexpose.
 Implement and support wireless network design as per the
business need using Cisco WLC and Cisco WAP.
 Identify opportunities to automate the network infrastructure
utilizing solutions like SDWAN (Silver Peak, Meraki) and automation tools
like Python.
 Perform maintenance and troubleshooting of F5 GTM and LTM
infrastructure, support application delivery functions.

Team Lead – Cisco Technical Assistance Centre (Cisco TAC) at Cisco Systems (Payroll - STS International)
  • India - Bengaluru
  • April 2012 to December 2014

Roles and Responsibilities:
 First point of internal escalation for Cisco TAC analysts and
assist in post-sale technical support worldwide for customers of medium
to large scale networks for various Cisco IOS/IOS-XE routers, ASA, FTD,
L2/L3 Switches, Nexus Switches, UCS and WLC.
 Act as an SME from a technical and process perspective and
assist IT analysts when they need SME support for any critical issues.
 Ensure that the service level agreements for all categories of
tickets are met as per established standards / targets.
 Be an escalation point for other TAC groups within the
organization.
 Manage and own critical customer escalations. Facilitate, own
and document communication among customers, escalation, and
engineering.
 Handling customer/end-user escalations effectively and
efficiently to ensure a timely, satisfactory solution is provided.

IT Analyst – Cisco Technical Assistance Centre (Cisco TAC) at Cisco Systems (Payroll - STS International)
  • India - Bengaluru
  • May 2011 to April 2012

Roles and Responsibilities:
 Provide post-sale technical support worldwide for customers of
medium to large scale networks for various Cisco IOS/IOS-XE routers,
ASA, FTD, L2/L3 Switches, Nexus Switches, UCS and WLC.
 Troubleshoot various VPN technologies like IPSec, SSL VPN,
DMVPN, GRE over IPsec, Remote Access VPN Clients; Routing and
Switching.
 Work with highly knowledgeable group of customers and
partners.
 Troubleshoot complicated hardware and software issues,
replicate customer environments and network problems in the lab.
 Be a customer advocate for timely resolution of the problems
reported, understand the environment/network and impact on
business.
 Take ownership for problem resolution, problem reproduction
and escalation.

System Administrator at Bharat Parekh Financial & Insurance Services
  • India - Nagpur
  • July 2010 to May 2011

Roles and Responsibilities:
 System Management - Installation, configuration,
maintenance, and support of PC hardware and operating systems
Windows XP, Windows 7, Windows Server 2008 R2.
 Network Management - Maintaining and administering
computer networks and related computing environments including
systems software, applications software, hardware, and configurations.
 Design of various tier site network using Cisco routers 2901,
Cisco switches 6509, 3750X, 4506, 2960.
 Monitor network performance (availability, utilization,
throughput, goodput, and latency) and test for weaknesses.
 Design, development, support, maintenance and
implementation of organizational upgrading technical projects.
 Identify areas for improvement of present software packages
of CRM and database management.

Education

Master's degree, Information Systems
  • at Sikkim Manipal University
  • July 2014
Bachelor's degree, Bachelor in Computer Application (BCA)
  • at West Bengal University of Technology
  • August 2010

DGPA – 7.5

Specialties & Skills

Riverbed
F5 BigIP
Cisco Security
Cisco Switches
Cisco Routers
Network - Routing and Switching
Cisco Switches – 2950, 2960, 3500, 3560, 3650, 3750, 9300, Meraki MS220, Nexus 3548, Nexus 5596
Cloud solutions - Amazon Web Services (AWS), Microsoft Azure
SDWAN - Meraki, Silverpeak, Viptela
Load Balancer: F5 LTM (BIG-IP 3900/4000/i2000)
Cisco Firewall – ASA 5505, 5506, 5510, 5515, 5520, Meraki MX60, Meraki MX100
WAN Optimizer: Riverbed Steelhead 250M, 1050M, CX255 (CX255M, CX255H), CX770 (CX770M, CX770M), EX560

Social Profiles

Personal Website
Personal Website

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Languages

English
Expert
Bengali
Expert
Hindi
Expert

Training and Certifications

PCEP - Certified Entry-Level Python Programmer (Certificate)
Date Attended:
July 2020
CCNP Routing and Switching (Certificate)
Date Attended:
June 2019
Certified Ethical Hacker (CEH) v10 (Certificate)
Date Attended:
May 2020
400-101 CCIE Routing and Switching (Certificate)
Date Attended:
February 2020
AWS Certified Solutions Architect - Associate (Certificate)
Date Attended:
October 2019
ITIL Foundation Certificate in IT Service Management (Certificate)
Date Attended:
April 2014
Microsoft Certified: Azure Solutions Architect Expert (Certificate)
Date Attended:
September 2019
CCNA Routing and Switching (Certificate)
Date Attended:
February 2019