GMS-Senior-Zero Trust Network Access

EY; Bengaluru; On-site; INR 1,800,000 - 3,400,000; Full time

Job summary

Ernst & Young Advisory Services Sdn Bhd in Bengaluru seeks a Senior ZTNA Engineer to architect, deploy, and manage identity-centric perimeter security, replacing legacy VPNs with context-aware access controls.

The role spans Assess, Build, Transition, and Operations across on-premises and cloud environments, with IdP, MFA, SSO, and SIEM integration to enhance enterprise security.

Qualifications

• 3–5 years of dedicated experience in network security, IAM, or zero trust architecture implementation.
• Hands-on with leading ZTNA platforms (Zscaler Private Access, Prisma Access, Cloudflare One, or Microsoft GSA).
• Strong understanding of IAM concepts, SAML/OIDC, AD/Entra ID, and basic networking.

Responsibilities

• Architect, deploy, and manage enterprise ZTNA solutions across on-prem and cloud environments.
• Design context-aware access policies using identity, device health, location, and risk scores.
• Coordinate migration from VPN to ZTNA with minimal business disruption.
• Ensure continuous monitoring, logs, and integration with SIEM for threat detection.

Skills

ZTNA platforms

IAM

SAML/OIDC

SSO integration

Cloud/hybrid

Education

Bachelor's degree (related field)

Tools

Zscaler Private Access

Prisma Access

Cloudflare One

Microsoft Entra ID

Job description

Job Description: Senior Zero Trust Network Access (ZTNA) Engineer

Experience Level: 3–5 Years

Role Type: Full-Time

Role Overview

We are seeking a Senior Zero Trust Network Access (ZTNA) Engineer to architect, deploy, and manage our modern identity-centric perimeter security solutions. Spanning the complete service delivery lifecycle—Assess, Build, Transition, and Operations—this role is pivotal in replacing legacy VPN architectures with least-privilege, context-aware access controls. The ideal candidate will have hands‑on experience integrating ZTNA platforms with enterprise Identity Providers (IdP), enforcing device posture checks, and securing hybrid enterprise applications.

Key Responsibilities

Assess (Architecture Review & Posture Analysis)

• Conduct comprehensive audits of existing remote access models, legacy VPN concentrators, and internal application exposure.
• Analyze user access patterns, application dependencies, and data flows to map out micro‑segmentation and least‑privilege policies.
• Evaluate current Identity Provider (IdP) readiness, multi‑factor authentication (MFA) enforcement, and endpoint device posture compliance mechanisms.

Build (Deployment & Policy Engineering)

• Deploy, configure, and manage enterprise ZTNA solutions (e.g., Zscaler ZPA, Palo Alto Prisma Access, Cloudflare One, or Cisco Secure Access).
• Design and implement context‑aware access policies combining user identity, device health, location, and risk scores.
• Provision and configure ZTNA connectors (gateways/brokers) across on‑premise data centers, AWS, Azure, and GCP environments.
• Integrate ZTNA platforms with enterprise Single Sign‑On (SSO) and Directory Services (e.g., Entra ID/Azure AD, Okta).

Transition (Migration, Testing & Handover)

• Drive the phased migration roadmap from legacy VPN solutions to ZTNA with minimal disruption to business units.
• Coordinate User Acceptance Testing (UAT) with business application owners to validate seamless context‑based access.
• Develop "As-Built" architecture diagrams, policy migration runbooks, and troubleshooting guides for support desks.
• Conduct enablement sessions for IT helpdesks and operations teams on ZTNA client troubleshooting and policy management.

Operations & Continuous Management

• Serve as the senior escalation point for complex ZTNA connectivity, identity assertion, and connector health issues.
• Perform continuous policy lifecycle management, reviewing access rules, removing stale policies, and refining posture checks.
• Monitor ZTNA tunnel performance, broker throughput, and client app stability across global endpoints.
• Ensure real‑time security telemetry and access logs stream successfully into the SIEM for threat hunting and compliance monitoring.
• Understanding of ITIL‑based Change Management, managing end‑to‑end change lifecycle activities, CAB coordination, and compliant implementation of infrastructure and application changes

Required Skills & Qualifications

• Experience: 3–5 years of dedicated experience in network security, identity and access management (IAM), or zero trust architecture implementation.
• Core Technologies: Hands‑on expertise with market‑leading ZTNA platforms (e.g., Zscaler Private Access, Palo Alto Prisma Access, Cloudflare One, or Microsoft Global Secure Access).
• Identity & Networking: Strong grasp of IAM principles, SAML/OIDC authentication protocols, Active Directory/Entra ID, and foundational networking (DNS, TCP/IP, routing, firewalls).
• Zero Trust Principles: Deep understanding of "Never Trust, Always Verify" paradigms, micro‑segmentation, and device posture validation frameworks.
• Certifications: Relevant vendor or cloud security certifications (e.g., Zscaler Certified Cloud Security Professional, PCNSE, AWS/Azure Security, or CISSP/CCSP) are highly preferred.
• Soft Skills: Strong cross‑functional collaboration skills, ability to manage enterprise‑wide change initiatives, and excellent technical documentation capabilities.

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