Zensar Technology/Software

Senior Network Administrator (VPN, Zero Trust & Network

Pune, India Hybrid Full-time

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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