
Network Security Engineer (Zscaler)
- London
- Temporary
- Full-time
- Design, deploy, and manage Zscaler ZPA and ZIA solutions across the enterprise
- Integrate Zscaler with identity providers (IdPs), SIEMs, and endpoint security platforms
- Monitor and optimise Zscaler policies, application segments, and access control rules
- Troubleshoot and resolve issues related to secure access, DNS filtering, SSL inspection, and traffic forwarding
- Collaborate with IT, security, and compliance teams to ensure secure and compliant network access
- Develop and maintain documentation for Zscaler configurations, policies, and procedures
- Stay current with emerging threats, vulnerabilities, and Zscaler platform updates
- Understand applications connectivity and troubleshoot within cloud environments
- Utilise basic Linux commands for tasks like manual script execution, key updates, cron jobs, connection troubleshooting
- Contribute to the design and the documentation of On Prem and Cloud Architecture and ZPA Architecture in alignment with security best practices
- 8+ years of experience in network security or related field
- 2+ years of hands-on experience with Zscaler ZPA and ZIA
- Strong understanding of TCP/IP, DNS, VPNs, firewalls, and proxy technologies
- Experience with cloud platforms (e.g., AWS, Azure, GCP) and Zero Trust architecture
- Familiarity with identity and access management (IAM) and SAML/SSO integrations
- Proficiency in using tools like Wireshark, Splunk, or other network/security monitoring tools
- Excellent problem-solving and communication skills
- Basic understanding of routing protocols, for e.g OSPF & BGP