Network Engineer (Zscaler ZTNA)

HCL SINGAPORE PTE. LTD.
Overview
We are seeking a skilled Zscaler ZTNA Specialist to support, operate, and enhance our Zscaler security ecosystem. The ideal candidate will have hands-on experience in designing, deploying, and maintaining secure internet access and Zero Trust Network Architectures (ZTNA) using Zscaler Internet Access (ZIA) and Zscaler Private Access (ZPA).
Responsibilities
Requirements
We are seeking a skilled Zscaler ZTNA Specialist to support, operate, and enhance our Zscaler security ecosystem. The ideal candidate will have hands-on experience in designing, deploying, and maintaining secure internet access and Zero Trust Network Architectures (ZTNA) using Zscaler Internet Access (ZIA) and Zscaler Private Access (ZPA).
Responsibilities
- Provide Day 2 operational support for ZIA and ZPA to ensure secure and efficient internet and application access aligned with client security standards.
- Design, implement, and support Zero Trust Network Access (ZTNA) solutions using the Zscaler platform for remote and on-premises users.
- Configure, tune, and optimize Zscaler services to protect users, devices, and applications against internet threats while maintaining seamless access to resources.
- Identify, diagnose, and resolve complex issues in Zscaler deployments and integrations with enterprise infrastructure.
- Monitor Zscaler performance, manage policies, and ensure compliance with security standards and regulatory frameworks.
- Support integration of Zscaler logs and alerts with SIEM platforms and automate routine processes using APIs where applicable.
- Maintain technical documentation, update the security risk matrix in alignment with network security standards, and contribute to continuous improvement initiatives such as AppViz functionality development.
- Collaborate with IT, network, and security teams as well as third-party vendors to ensure successful implementation and support of Zscaler solutions.
Requirements
- Bachelor's degree in Computer Science, Information Technology, or a related field.
- 4 years of experience in network or cloud security, with at least 2 years focused on Zscaler technologies.
- Strong hands-on experience with Zscaler Internet Access (ZIA) and Zscaler Private Access (ZPA).
- Solid understanding of Zero Trust Network Access (ZTNA) architecture and cloud security principles.
- Experience in network security operations, including firewalls, VPNs, proxies, and DNS filtering.
- Familiarity with SIEM tools, log analysis, and incident response workflows.
- Experience with API integration, automation scripting, and configuration management tools is an advantage.
- Excellent troubleshooting, analytical, and problem-solving skills.
- Strong communication and stakeholder management abilities.
- Relevant certifications (e.g., Zscaler Certified Cloud Professional (ZCCP-PA/ZCCP-IA), ZIA/ZPA Specialist) preferred.
JOB SUMMARY
Network Engineer (Zscaler ZTNA)

HCL SINGAPORE PTE. LTD.
Singapore
8 days ago
N/A
Full-time
Network Engineer (Zscaler ZTNA)