Senior - Zero Trust Network Access

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

Job summary

Ernst Young LLP in Bengaluru, India seeks a Senior Zero Trust Network Access (ZTNA) Engineer to architect, deploy, and manage modern identity-centric perimeter security. The role spans assessment, deployment, transition, and operations to replace legacy VPNs with least-privilege, context-aware access controls.

You will integrate ZTNA with IdPs, enforce MFA, and ensure device posture compliance. The candidate will lead migration efforts, design policies by user identity, device health, location,

Qualifications

• 35 years of hands-on network security, IAM or zero-trust implemen­ta­tion experience required.
• Proven expertise with market-leading ZTNA platforms and IdP integrations.
• Strong understanding of IAM, SAML/OIDC, Entra ID/AD, DNS/TCP/IP and firewalls.

Responsibilities

• Assess architecture and posture of current remote access and legacy VPNs.
• Build and deploy context-aware ZTNA policies and connectors.
• Transition from VPNs to ZTNA with phased migration and UAT.
• Operations and ongoing policy lifecycle management and incident support.

Skills

35 years experience

IAM concepts

SAML/OIDC

Entra ID / AD

Zero Trust fundamentals

Micro-segmentation

Device posture validation

Cross-functional collaboration

Technical documentation

Tools

Zscaler Private Access

Palo Alto Prisma Access

Cloudflare One

Microsoft Entra / Global Secure Access

Job description

# Senior - Zero Trust Network AccessERNST YOUNG LLPPosted on October 23, 2026---Experience2 - 3 yrsJob LocationBengaluru, IndiaVacancy1DesignationSenior Network Security EngineerJob TypeNot specified---## Job DescriptionJob SummaryJob Description: Senior Zero Trust Network Access (ZTNA) Engineer**Experience Level:** 35 Years**Role Type:** Full-TimeRole OverviewWe 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:** 35 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.