Remote Senior Network Engineer - Zscaler & ZTNA Expert

Job Description – Senior Network Engineer (Zscaler Specialist)

• Location: Remote / India
• Experience: 5+ Years
• Employment Type: Full-Time

Role Summary

We are seeking an experienced Senior Network Engineer with deep expertise in Zscaler Internet Access (ZIA), Zscaler Private Access (ZPA), and enterprise network infrastructure. The ideal candidate will possess strong hands-on experience in designing, implementing, administering, and troubleshooting secure network environments utilizing Zscaler's Zero Trust architecture.

The role requires extensive experience in enterprise networking, network security, cloud-delivered security platforms, SD-WAN integrations, and secure remote access solutions.

Key Responsibilities

Zscaler Administration & Engineering

• Design, deploy, configure, and support Zscaler Internet Access (ZIA) and Zscaler Private Access (ZPA) environments.
• Manage Zscaler policies, forwarding profiles, authentication mechanisms, SSL inspection, URL filtering, firewall policies, and data protection controls.
• Configure and maintain:
• Service Edges
• Client Connectors
• Access Policies
• Implement and administer Zero Trust Network Access (ZTNA) solutions across global enterprise environments.
• Troubleshoot complex ZIA and ZPA connectivity, authentication, and application access issues.
• Manage integration with Identity Providers such as:
• Okta
• Ping Identity
• Active Directory
• Perform application onboarding and migration from traditional VPN solutions to ZPA.
• Configure Cloud Firewall, Sandbox, DLP, CASB, and Advanced Threat Protection features within Zscaler.
• Develop and maintain operational documentation, runbooks, deployment guides, and architecture diagrams.

Network Operations & Infrastructure

• Administer enterprise-level LAN, WAN, Wireless, Internet Edge, and Data Center networks.
• Configure and troubleshoot:
• Cisco Routers & Switches
• Aruba Wireless Controllers
• Fortinet Firewalls
• SD-WAN Solutions
• Design resilient and highly available network architectures.
• Support network expansion, refresh projects, and infrastructure upgrades.
• Serve as L2/L3 escalation point for critical network and Zscaler incidents.
• Perform root cause analysis (RCA) and provide permanent resolutions.
• Troubleshoot:
• VPN Connectivity
• DNS Issues
• Application Access Problems
• Routing & Switching Issues
• Participate in on-call support and major incident management processes.

Monitoring & Reporting

• Monitor network availability and performance utilizing enterprise monitoring tools.
• Generate operational reports covering:
• Network Health
• Capacity Planning
• Security Events
• Proactively identify performance bottlenecks and recommend improvements.

Required Technical Skills

• Expert-level hands-on experience with:
• Zscaler Internet Access (ZIA)
• Fully Qualified Domain Name (FQDN)
• Zscaler Private Access (ZPA)
• Zscaler Digital Experience (ZDX)
• Advanced Threat Protection
• CASB

Networking

• Strong expertise in:
• TCP/IP
• DNS
• DHCP
• NAT
• VPN
• IPSEC
• BGP
• OSPF
• VLANs
• STP
• QoS
• Wireless Networking

Security

• Firewall Configuration & Administration
• Zero Trust Architecture
• Secure Web Gateway (SWG)
• Proxy Technologies
• Identity & Access Management
• SSL/TLS Technologies
• Network Access Control (NAC)
• AWS
• ExpressRoute
• Site-to-Site VPN
• SD-WAN Integration with Zscaler

Required Experience

• Minimum 5+ years of experience in Enterprise Network Engineering.
• Minimum 3+ years of hands-on experience with Zscaler ZIA and ZPA.
• Experience supporting global enterprise environments with 1,000+ users.
• Proven experience in network transformation and VPN-to-ZTNA migrations.
• Experience working within ITIL-based support models.

Educational Qualifications

• Bachelor's Degree in Computer Science, Information Technology, Networking, or related discipline.

Mandatory Certifications

Candidates should possess one or more of the following certifications:

Zscaler Certifications (Highly Preferred)