Senior Network Engineer

Location: Noida, India Employment Type: Full-Time Experience: 7–12+ Years Working Hours: US Shift Job Summary We are seeking an experienced Senior Network Engineer to support one of our enterprise clients by managing, securing, and optimizing their network infrastructure. The successful candidate will work directly within the client's enterprise environment, collaborating with their IT, Infrastructure, Security, and Cloud teams. Previous experience working in a client-side enterprise environment is essential. Key Responsibilities Design, implement, maintain, and optimize LAN, WAN, WLAN, VPN, and cloud networking solutions. Administer SonicWall firewalls including VPNs, NAT, security policies, IPS, and threat protection. Support Ubiquiti networking equipment where deployed. Implement and support Zero Trust Network Access (ZTNA), preferably using Zscaler. Configure and troubleshoot BGP, OSPF, VLANs, STP, MPLS, QoS, DNS, DHCP, NAT, and VPNs. Monitor network performance, perform root cause analysis, and lead infrastructure upgrades. Support AWS and Azure networking while working closely with client IT and security teams. Maintain documentation and participate in incident, change, and disaster recovery activities. Mentor junior engineers and provide technical leadership. Required Qualifications Bachelor's degree in Computer Science, Information Technology, Network Engineering, or a related field. 7–12+ years of enterprise network engineering experience. Proven experience working directly within client-side enterprise environments. Strong hands-on experience with SonicWall firewalls and familiarity with Ubiquiti devices. Experience with Zscaler and Zero Trust Network Access (ZTNA). Strong knowledge of TCP/IP, BGP, OSPF, MPLS, VLANs, STP, DNS, DHCP, NAT, VPN, and IPv4/IPv6. Experience with AWS and/or Azure networking. Excellent troubleshooting, communication, and stakeholder management skills.