Description
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Experience: 5+ yrs
Location: Kolkata, West Bengal, India
Job Type: Full-time

We are looking for an experienced Network Engineer with robust expertise in Network Engineering and Cisco Firewall Security to design, implement, maintain, and secure enterprise network infrastructure.
The role requires hands-on experience in network architecture, routing and switching, firewall administration, network security, troubleshooting, monitoring, and performance optimisation. You will be responsible for maintaining reliable and secure network connectivity while supporting business-critical applications and infrastructure.
The ideal candidate will have strong Cisco networking expertise, a security-focused mindset, and the ability to troubleshoot complex network and firewall issues in a production environment.

Requirements
Key Responsibilities
- Design, implement, configure, and maintain enterprise network infrastructure across LAN, WAN, Internet, and data centre environments.




- Configure and manage Cisco networking equipment including routers, switches, and related network technologies.
- Administer and maintain Cisco Firewall Security environments, including firewall policies, access control rules, NAT, VPNs, and security configurations.
- Design and implement secure network architectures aligned with business and security requirements.
- Configure and troubleshoot routing protocols, switching, VLANs, ACLs, NAT, DNS, DHCP, and related network services.
- Implement and support site-to-site and remote-access VPN solutions.
- Monitor network performance, availability, capacity, and security using appropriate monitoring and management tools.
- Troubleshoot complex network connectivity, performance, routing, switching, and firewall issues.
- Analyse network traffic, logs, alerts, and security events to identify potential issues and support incident resolution.
- Particip

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