Role: Manual Test Engineer – EUC & Zscaler Testing Location: Wokingham / Warwick, UK (Office-based) Contract Type: 6-month Contract Rate: £400/day (Inside IR35) We are seeking experienced Manual Test Engineers to join a high-performing IT team. You will focus on End User Computing (EUC), Zscaler security & network access, and network testing across enterprise systems. Key Responsibilities: * Perform manual testing of EUC components: laptops/desktops, VDI, Citrix, mobile devices. * Validate application packaging, distribution, and performance across EUC environments. * Test Windows OS upgrades, M365 applications, collaboration tools, and enterprise software. * Conduct Zscaler testing (ZIA, ZPA, Client Connector), authentication, SSO, and policy validation. * Execute network testing, including firewall policies, VPN, LAN/WAN connectivity, and routing rules. * Document test cases, results, defects, and collaborate with cross-functional teams to resolve issues. Essential Skills: * 3–7 years of manual testing experience in EUC and network/security environments. * Hands-on knowledge of Zscaler components, Citrix, VDI, Windows/Mac OS, and M365 applications. * Understanding of TCP/IP, DNS, DHCP, VPN, routing, and network troubleshooting. * Familiarity with test management tools (JIRA, Azure DevOps, A...