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Network Engineer L3 CSB Bank


Job Location:

Navi Mumbai - India

Monthly Salary: Not provided by the employer
Posted: 29 September 2026 (7 days ago)
Application Deadline: 27 December 2026
Vacancies: 1 Vacancy

Job Summary

L3 Network Lead Engineer Job Description
Role: L3 Network Lead Engineer
Experience
  • 8 years of experience in Network Engineering with strong L3 troubleshooting and network architecture experience.
  • Experience in enterprise/banking or large-scale infrastructure environments preferred.
Key Responsibilities
  • Lead L3 network operations troubleshooting incident management and resolution of complex network issues.
  • Design implement and maintain enterprise network infrastructure across LAN WAN Data Center and cloud environments.
  • Provide advanced troubleshooting for routing switching VPN firewall load balancer and network security issues.
  • Handle major incidents perform RCA and implement permanent corrective actions.
  • Lead network changes upgrades migrations and network optimization activities.
  • Review network designs configurations implementation plans and technical documentation.
  • Coordinate with application security infrastructure OEM and service-provider teams for issue resolution.
  • Mentor L1/L2 network engineers and provide technical guidance on complex incidents.
  • Ensure network availability performance capacity security and SLA compliance.
  • Participate in DR drills network audits vulnerability remediation and business continuity activities.
  • Maintain SOPs network diagrams configuration documents and troubleshooting procedures.
Technical Skills
  • Strong knowledge of TCP/IP OSI DNS DHCP ARP NAT SNMP and network protocols.
  • Expert-level experience in routing and switching.
  • Hands-on experience with OSPF BGP EIGRP MPLS VRF VLAN STP/RSTP/MSTP.
  • Strong experience with Cisco routers switches and enterprise networking technologies.
  • Experience with Cisco SD-WAN / SD-Access is preferred.
  • Strong knowledge of IPSec VPN SSL VPN GRE and DMVPN.
  • Working knowledge of firewalls such as Check Point Cisco ASA/FTD and FortiGate.
  • Experience with F5 Load Balancers and high-availability configurations.
  • Knowledge of Cisco ISE/NAC and network access control.
  • Experience in network monitoring and troubleshooting tools such as SolarWinds PRTG Grafana Wireshark SNMP etc.
  • Good understanding of network security segmentation high availability and redundancy.
Leadership & Process
  • Ability to lead technical bridge calls and major incident resolution.
  • Strong analytical and problem-solving skills.
  • Experience in ITIL-based Incident Problem and Change Management.
  • Ability to prepare RCA capacity reports network health reports and technical documentation.
  • Strong communication and stakeholder-management skills.
  • Ability to work in 24x7 support/on-call environments when required.


Required Experience:

Senior IC


About Company

3i Infotech Limited is a global Information Technology company committed to Empowering Business Transformation.A comprehensive set of IP based software solutions (20+), coupled with a wide range of IT services, uniquely positions the company to address the dynamic requirements of a va ... View more

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