Sayantan Mukherjee
Bangalore
Summary
Experienced Network Engineer with over 10 years in IP networking and security engineering. Skilled in configuring, upgrading, and troubleshooting routers, switches, firewalls, and load balancers. Manages network performance, ensures security monitoring, and delivers enterprise-level support while collaborating with cross-functional teams.
Overview
10
10
years of professional experience
2
2
Certifications
Work History
System (Network) engineer
Commonwealth Bank
07.2022 - Current
- Designed and implemented secure network solutions for financial services.
- Configured and maintained routers, switches, and firewalls to enhance network performance and reliability.
- Conducted network vulnerability scans to identify risks and ensure adherence to security policies.
- Managed wireless networking setups to ensure mobile connectivity through strategic access point placement.
- Collaborated with teams to troubleshoot network issues and maximize uptime.
- Performed preventive maintenance of networking hardware and software to enhance reliability.
- Developed documentation for network configurations and standard operating procedures.
- Provided training and support to junior engineers on best practices and tools.
- Slashed expenses and increased allocation of available resources by auditing schedule, cost and contract performance.
Senior L2 network engineer
HCL Technologies
05.2021 - 06.2022
- Configured and maintained network infrastructure to support global client operations, enhancing connectivity and reliability.
- Configured routers, switches, firewalls, and other hardware to manage LAN, WAN, and wireless networks.
- Monitored network performance and resolved connectivity issues, ensuring minimal downtime and optimal user experience.
- Collaborated with cross-functional teams to implement robust network security measures.
- Assisted in deploying innovative networking technologies and solutions for clients.
- Created detailed network documentation and diagrams to facilitate knowledge sharing and streamline internal processes.
- Installed software updates across servers, routers, firewalls, and other network devices.
- Provided technical support to users facing network-related challenges.
L2 Network engineer
ATOS Pvt Ltd
Bangalore
06.2018 - 04.2021
- Configured and maintained network devices to improve performance and strengthen security posture.
- Monitored network traffic to ensure efficient data flow and minimize disruptions.
- Conducted regular assessments to identify vulnerabilities and enhance security measures.
- Trained junior engineers in best practices for network management and troubleshooting techniques.
IP network service manager
HUAWEI TECHNOLOGIES INDIA Pvt Ltd
BANGALORE
10.2015 - 06.2018
- Managed service staff to uphold customer satisfaction and ensure compliance with standards.
- Enhanced customer satisfaction ratings by resolving complaints and executing effective solutions.
- Coordinated cross-functional teams for timely resolution of technical issues.
- Streamlined service operations to enhance efficiency in customer support delivery.
- Collaborated with customers to identify and fulfill service requirements.
- Oversaw inventory management for essential parts required for servicing needs.
Education
B. TECH - Electronics & Communication Engineering
West Bengal University Of Technology
West BengalSkills
- Network troubleshooting and security
- Router and firewall management
- Wireless networking and performance monitoring
- Cross-functional collaboration
- Problem resolution and documentation
- Client support and training
- Attention to detail
- Effective communication skills
- Time management and adaptability
- Root-cause analysis
- Cost estimation and budgeting
- Python and Bash proficiency
- Switching technologies expertise
- Circuit management and DNS implementation
- DHCP and network configuration
- Connectivity troubleshooting and monitoring
- Risk assessment strategies
- Software-defined networking solutions
Certification
AWS Solutions Architect
Technical Skills
Putty, Secure CRT, Orchestrator, Panaroma, ASDM, ISE, DNAC, Infoblox, Netflow, Solarwinds, OWS, SDM, Service NOW, Windows, Linux, Migrating Route based tunnels to IPsec tunnel, Software upgrade of Nexus (9k, 5k and 3k) devices and routers, Hardware replacement of production network devices, End to end project delivery of network connectivity commission and decommission of external tenants, Supporting various activities on organization from network side, Doing low impacting smaller changes through automation tools, Doing load balancing between data center as per the requirement on the DR activities, Doing migration of ASA firewall to PA firewall, Doing migration of Cisco Routers to Velo Cloud devices, Migrating physical firewall to cloud firewall through Velo cloud and Prisma Connectivity, Routing and Switching Protocols: EIGRP, OSPF, STP, DMVPN and BGP, Configuration and troubleshooting on various type of Access point and controller, Configuration and troubleshooting on Palo Alto and ASA firewall, Port Security, BPDU Guard, BPDU Filter, Root Guard, Loop Guard, Configuration and troubleshooting on VPN as per requirement, Hands on experience on Cisco and Huawei Core Router, ACL’s: Standard/Extended/Named/Reflexive & Time-based ACL's, IP subnetting and VLSM, Hands-on experience with routing protocols like RIP, OSPF, IS-IS, BGP and EIGRP, Sound Knowledge over Configuration and troubleshooting, Full Command on Huawei and Cisco IOS Commands, Sound knowledge over LAN technologies like VLANS, VTP, Inter VLAN Routing, NAT & PAT, Good understanding of OSI model & TCP/IP protocol suite, Basic understanding in handling MIS tools, Configuration and troubleshooting on various LAN devices like printers, UPS, scanners, IP address assignment and recovery as per requirement of clients, Supporting clients all over globe in network issues, Troubleshooting WLC and AP issues, HW refresh and OS upgrade of Access points and WLC
Languages
- Hindi
- Bengali
- English
Hobbies and Interests
- Vlogging
- Long Drives
- Travelling
- Cricket
Projects
MTN.Net (Huawei), MPLS (ISP), 10/01/15 – 06/30/18, 15, MTN.Net providing IP services to 32 countries. MTN.Net also providing some L2VPN, L3VPN and Enterprise services to the customers. MTN.Net playing a vital role between internet cloud and several MTN country network in MTN network. Ashland and Valvoline (Atos), MPLS, DMVPN, BGP, STP, EIGRP and Palo Alto, 06/01/18 – 05/30/21, 30, Network support providing to all over sites and stores of all over globe of clients. Franklin Templeton (HCL), Velocloud, Cisco devices DMVPN, BGP, STP, EIGRP and Palo Alto, 05/01/21 – 06/30/22, 10, Network support providing to all over the data centers and remote sites of all over globe of clients. Commonwealth Bank of Australia, Cisco NEXUS, Routers, Paloalto, 06/01/22 – Present, 10, Doing project works on data center and remote sites’ network devices as per requirement.
Disclaimer
I hereby acknowledge & authenticate, every bit of information mentioned in this document is correct by all means.
Roles And Responsibilities
- Troubleshooting of (Routers, Switches, Wireless devices and Firewall)
- Responsible to localize the fault & assign to the proper resolver group for any incident if it’s not for network group.
- Taking weekly backup of Routers and Switches configuration files.
- Field Operation: Preventive maintenance, patching of ports on Routers on Provider and Provider edge and Emergency field activities.
- Responsible for handling first and second level troubleshooting issues.
- Handle the tasks of providing support in network acquisition and analyzing network traffic requirements.
- Handle network administration tasks as well as analysis of data communication networks.
- Deliver support for Remote Access VPN and troubleshooting when necessary.
- Handled responsibilities of providing 24
- 7 networking support in production environment.
- Perform responsibilities of analyzing network topologies and identifying network Performance issues.
- Escalating and resolving MPLS issues with ISP Providers.
- Plan and implement any improvement, modification or replacement of network.
Personal Information
- Caste: General
- Father's Name: Late Gautam Mukherjee
- Mother's Name: Mrs. Ranu Mukherjee
- Date of Birth: 06/19/92
- Gender: Male
- Nationality: Indian
- Marital Status: Married
Timeline
System (Network) engineer
Commonwealth Bank
07.2022 - Current
Senior L2 network engineer
HCL Technologies
05.2021 - 06.2022
L2 Network engineer
ATOS Pvt Ltd
06.2018 - 04.2021
IP network service manager
HUAWEI TECHNOLOGIES INDIA Pvt Ltd
10.2015 - 06.2018
B. TECH - Electronics & Communication Engineering
West Bengal University Of Technology