Senior Network Administrator (VPN, Zero Trust & Network

Job Description: Senior Network Administrator (VPN, Zero Trust & Network Security) Experience 8-12 Years Location : Pune , Hybrid Role Summary Seeking an experienced Senior Network Administrator to manage, secure, and optimize enterprise network infrastructure with a strong focus on VPN technologies, Zero Trust Network Access (ZTNA), network security, and enterprise connectivity . The ideal candidate will possess expertise in routing, switching, firewalls, SD-WAN, VPN solutions, NAC, and modern Zero Trust architectures while ensuring high availability, security compliance, and operational excellence. Key Responsibilities Network Infrastructure Management Design, implement, and administer enterprise LAN, WAN, Wireless, and Data Center networks. Manage routers, switches, load balancers, wireless controllers, and Internet connectivity. Perform network capacity planning, performance tuning, and infrastructure upgrades. Ensure network availability aligned with defined SLAs. VPN & Remote Access Management Configure and support IPSec, SSL VPN, Site-to-Site VPN, and Client VPN solutions. Manage remote access platforms from vendors such as Cisco, Palo Alto, Fortinet, Check Point, or Zscaler. Troubleshoot VPN connectivity, authentication, performance, and access-related issues. Implement secure remote workforce solutions. Zero Trust Network Access (ZTNA) Design and administer ZTNA solutions to enable secure application access. Implement identity-based access controls and least-privilege principles. Integrate ZTNA platforms with IAM, MFA, Conditional Access, and Endpoint Security solutions. Support technologies such as: Zscaler ZPA Palo Alto Prisma Access Netskope Cisco Secure Access Cloudflare Zero Trust Network Security Administer next-generation firewalls (NGFW) and security platforms. Create and maintain security policies, ACLs, NAT, IPS/IDS rules. Monitor network security events and collaborate with SOC teams. Conduct vulnerability remediation and security hardening activities. Support DDoS protection, segmentation, and micro-segmentation initiatives. Operations & Incident Management Handle L2/L3 complex network incidents and problem management activities. Perform root cause analysis (RCA) and implement preventive measures. Participate in major incident management and change management processes. Maintain operational documentation, SOPs, and knowledge repositories. Cloud & Hybrid Networking Manage networking across Azure, AWS, and hybrid environments. Configure VNETs, VNets Peering, Transit Gateways, Virtual WAN, and VPN Gateways. Support secure cloud access using ZTNA and SASE principles. Monitoring & Automation Utilize monitoring tools such as SolarWinds, PRTG, LogicMonitor, ThousandEyes, or Observability platforms. Automate routine networking tasks using PowerShell, Python, Ansible, or APIs. Generate network health reports and executive dashboards. Required Technical Skills Networking TCP/IP, DNS, DHCP, BGP, OSPF, EIGRP VLANs, STP, HSRP, VRRP MPLS, SD-WAN, WAN Optimization Network Load Balancing Security Zero Trust Architecture SASE Framework VPN Technologies (IPSec, SSL VPN) IDS/IPS NAC (Cisco ISE, Aruba ClearPass) Network Segmentation & Microsegmentation Firewall & Security Platforms Palo Alto Cisco Firepower / ASA Fortinet FortiGate Check Point Zscaler Netskope Cloud Networking AWS Networking Azure Networking Hybrid Connectivity Secure Access Service Edge (SASE) Monitoring Tools SolarWinds PRTG LogicMonitor ThousandEyes Splunk Grafana Desired Certifications CCNP Enterprise / CCIE PCNSE (Palo Alto) NSE 4/5/7 (Fortinet) Zscaler Certified Administrator Cisco Secure Access Certification Azure Network Engineer Associate (AZ-700) AWS Advanced Networking Specialty CISSP (Preferred) Soft Skills Strong analytical and troubleshooting capabilities. Excellent stakeholder and executive communication skills. Experience in client-facing managed services environments. Ability to lead technical bridges during critical incidents. Mentoring junior engineers and driving operational improvements. Preferred Industry Experience Managed Services (MSP) Global Capability Centers (GCC) Enterprise IT Infrastructure Healthcare, Manufacturing, BFSI, Retail, and Technology sectors Job Description: Senior Network Administrator (VPN, Zero Trust & Network Security) Experience 8-12 Years Location : Pune , Hybrid Role Summary Seeking an experienced Senior Network Administrator to manage, secure, and optimize enterprise network infrastructure with a strong focus on VPN technologies, Zero Trust Network Access (ZTNA), network security, and enterprise connectivity . The ideal candidate will possess expertise in routing, switching, firewalls, SD-WAN, VPN solutions, NAC, and modern Zero Trust architectures while ensuring high availability, security compliance, and operational excellence. Key Responsibilities Network Infrastructure Management Design, implement, and administer enterprise LAN, WAN, Wireless, and Data Center networks. Manage routers, switches, load balancers, wireless controllers, and Internet connectivity. Perform network capacity planning, performance tuning, and infrastructure upgrades. Ensure network availability aligned with defined SLAs. VPN & Remote Access Management Configure and support IPSec, SSL VPN, Site-to-Site VPN, and Client VPN solutions. Manage remote access platforms from vendors such as Cisco, Palo Alto, Fortinet, Check Point, or Zscaler. Troubleshoot VPN connectivity, authentication, performance, and access-related issues. Implement secure remote workforce solutions. Zero Trust Network Access (ZTNA) Design and administer ZTNA solutions to enable secure application access. Implement identity-based access controls and least-privilege principles. Integrate ZTNA platforms with IAM, MFA, Conditional Access, and Endpoint Security solutions. Support technologies such as: Zscaler ZPA Palo Alto Prisma Access Netskope Cisco Secure Access Cloudflare Zero Trust Network Security Administer next-generation firewalls (NGFW) and security platforms. Create and maintain security policies, ACLs, NAT, IPS/IDS rules. Monitor network security events and collaborate with SOC teams. Conduct vulnerability remediation and security hardening activities. Support DDoS protection, segmentation, and micro-segmentation initiatives. Operations & Incident Management Handle L2/L3 complex network incidents and problem management activities. Perform root cause analysis (RCA) and implement preventive measures. Participate in major incident management and change management processes. Maintain operational documentation, SOPs, and knowledge repositories. Cloud & Hybrid Networking Manage networking across Azure, AWS, and hybrid environments. Configure VNETs, VNets Peering, Transit Gateways, Virtual WAN, and VPN Gateways. Support secure cloud access using ZTNA and SASE principles. Monitoring & Automation Utilize monitoring tools such as SolarWinds, PRTG, LogicMonitor, ThousandEyes, or Observability platforms. Automate routine networking tasks using PowerShell, Python, Ansible, or APIs. Generate network health reports and executive dashboards. Required Technical Skills Networking TCP/IP, DNS, DHCP, BGP, OSPF, EIGRP VLANs, STP, HSRP, VRRP MPLS, SD-WAN, WAN Optimization Network Load Balancing Security Zero Trust Architecture SASE Framework VPN Technologies (IPSec, SSL VPN) IDS/IPS NAC (Cisco ISE, Aruba ClearPass) Network Segmentation & Microsegmentation Firewall & Security Platforms Palo Alto Cisco Firepower / ASA Fortinet FortiGate Check Point Zscaler Netskope Cloud Networking AWS Networking Azure Networking Hybrid Connectivity Secure Access Service Edge (SASE) Monitoring Tools SolarWinds PRTG LogicMonitor ThousandEyes Splunk Grafana Desired Certifications CCNP Enterprise / CCIE PCNSE (Palo Alto) NSE 4/5/7 (Fortinet) Zscaler Certified Administrator Cisco Secure Access Certification Azure Network Engineer Associate (AZ-700) AWS Advanced Networking Specialty CISSP (Preferred) Soft Skills Strong analytical and troubleshooting capabilities. Excellent stakeholder and executive communication skills. Experience in client-facing managed services environments. Ability to lead technical bridges during critical incidents. Mentoring junior engineers and driving operational improvements. Preferred Industry Experience Managed Services (MSP) Global Capability Centers (GCC) Enterprise IT Infrastructure Healthcare, Manufacturing, BFSI, Retail, and Technology sectors