Test Engineer

The Role

The Manual Test Engineer will be responsible for validating end‐user applications, network components, and security layers—including EUC environments, Zscaler configurations, and enterprise network connectivity. The role involves performing functional, non-functional, regression, and integration testing across digital workplace and network/security infrastructure. The ideal candidate will have strong analytical skills, hands-on testing experience, and a solid understanding of enterprise IT ecosystems. candidates must be eligible for UK Security Check (SC) clearance ; active SC is desirable but not mandatory.

: EUC (End User Computing) Testi

• ngPerform manual testing of EUC components such as laptops/desktops, VDI, thin clients, Citrix environments, and mobile device
• s.Validate application packaging, distribution, compatibility, and performance in EUC environment
• s.Test Windows OS upgrades/patches, M365 applications, collaboration tools, and standard enterprise softwar
• e.Conduct UAT for business-critical EUC applications and ensure seamless end‐user experienc
• e.Document test cases, results, and defects in appropriate test management tool

s.⭐ Zscaler Testing (Security & Network Acces

• s)Execute testing related t o Zscaler Internet Access (ZI A) an d Zscaler Private Access (ZP A
• ).Validate secure web gateway policies, access rules, URL filtering, SSL inspection behavior, and tenant-specific configuration
• s.Perform authentication and SSO testing (Azure AD, SAML, certificates, etc.
• ).Validate Zscaler client connector behavior across different networks (office, home, VPN, mobile hotspot
• ).Collaborate with network/security teams to analyze logs, troubleshoot failures, and ensure policy complianc

e.⭐ Network Testi

• ngConduct manual testing of network changes, routing rules, firewall policies, DNS/DHCP behavior, and connectivity validation
• s.Perform end-to-end connectivity checks for business applications across LAN/WAN, VPN, SD‐WAN, and cloud network
• s.Validate network resiliency, failover scenarios, and performance impact post‐chang
• e.Work with network operations teams to verify packet flow, latency, throughput, and error rates based on test scenario
• s.Document network issues with detailed steps, logs, and impact analysi

s.Key Skills & Qualificatio

nsTechnical Skil

• lsStrong manual testing experience (3–7 years preferred
• ).Hands-on experience in EUC testing, including Windows/Mac OS, VDI, Citrix, M36
• 5.Practical understanding of Zscaler components—ZIA, ZPA, Client Connector, policy evaluatio
• n.Working knowledge of network fundamentals (TCP/IP, DNS, DHCP, VPN, routing
• ).Experience with test management tools (JIRA, Azure DevOps, ALM, etc.
• ).Ability to analyze logs (Zscaler logs, network logs, Event Viewer, browser dev tools
• ).Understanding of Change & Incident Management (ITIL preferred

).Soft Skil

• lsExcellent problem‐solving skills and attention to detai
• l.Strong communication, documentation, and stakeholder engagement abilitie
• s.Ability to collaborate with cross-functional teams (network, security, EUC, application teams
• ).Self-motivated and able to work independently with minimal supervisio