Job Description: Senior Network Administrator (VPN, Zero Trust & Network Security)
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.
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.
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.
Netskope
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.
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
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 provided by Zensar.
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