Network Security Engineer (Zscaler SME – Cross Platform Expertise)
Contract Type: 6 Month Contract
Day Rate: £550 per day
IR35 Status: Inside IR35
Overview
We are seeking an experienced Network Security Engineer with strong Zscaler SME expertise and broad cross-platform security knowledge to join on an initial 6-month contract. The role will focus on supporting, optimising, and governing enterprise security architecture across a complex, multi-vendor environment.
Key Responsibilities
* Support and maintain Zscaler architecture standards, including High-Level Design (HLD) and Low-Level Design (LLD) documentation.
* Develop and maintain reusable design patterns and architectural best practices.
* Provide technical expertise across security and network integrations, including:
* Zscaler
* Elisity
* Cisco SD-WAN
* Palo Alto
* CrowdStrike / SIEM platforms
* Contribute to strategic security initiatives such as:
* Zero Trust transformation (ZTB)
* DLP / CASB enhancement
* Adoption of new platform features and capabilities
* Support project delivery, conduct architecture reviews, and optimise existing deployments.
* Act as an escalation point for major incidents within the network security domain.
* Drive engineering governance, standards alignment, and continuous improvement best practices.
Required Experience
* Proven experience as a Zscaler SME in enterprise environments.
* Strong cross-platform network and security engineering capability.
* Experience working within regulated environments and structured governance frameworks.
* Ability to support both BAU and project-driven initiatives.
* Strong documentation, stakeholder communication, and problem-solving skills.