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Job Title:Assistant Manager/Manager – IT Infrastructure & Network OperationsLocation:Noida – Sector 63 Work Mode:On-site | Full-time Salary:Up to ₹8,00,000 per annum (Maximum 30% hike on last drawn CTC) Shift Timing:General Morning Shift Working Days:5.5 days/week – 1st & 3rd Saturday working; 2nd & 4th Saturday off Interview Mode:Face-to-Face Experience Required:Minimum 5 years (Relevant)About the Role We are seeking an experienced IT and Networking professional to oversee, maintain, and enhance our IT infrastructure. This role demands strong expertise in network configuration, security, troubleshooting, and system administration, ensuring high availability and secure operations.Key Responsibilities Maintain and administer computer networks and related computing environments, including systems software, applications, hardware, and configurations. Provide L3-level network and service assurance support for enterprise networks (Cisco-based WAN/LAN/WLAN and SD-WAN technologies). Troubleshoot and resolve technical issues across hardware, software, and network domains. Manage and maintain systems security, including firewalls, VPNs, access control, IDS/IPS, NAC, and Zero Trust Networking. Configure and manage Active Directory, DNS, DHCP, LDAP, and ADFS on Windows servers. Manage L2/L3 networking devices, including firewalls, routers, switches, and access points. Work with cloud networking platforms (AWS, Azure, Google Cloud). Collaborate with IT, operations, and security teams to align infrastructure with business requirements.Skills & Experience Required Minimum 5 years of proven experience as a System Administrator or Network Engineer. Strong knowledge of network infrastructure (Switching, Routing, Wi-Fi, VLAN, MPLS, VPNs, SD-WAN). Experience with Cisco, Meraki, Check Point, Spanning Tree, VRF, and firewall protocols. Hands-on experience in cloud networking (AWS/Azure) and virtualization platforms (VMware/Hyper-V). Proficiency with Linux (CentOS, Ubuntu) and Windows OS/server environments (2016/2019/2022). Knowledge of infrastructure services such as Active Directory, DNS, DHCP, and Group Policies. Experience with email systems (Google Workspace, Microsoft Exchange). Strong problem-solving, analytical, and troubleshooting skills.