Network Engineer, Zscaler London circa £100k (flex for the right candidate) + bonus + benefits We''re seeking a highly motivated Network Engineer to join a financial services organisation operating in a secure, high-availability, enterprise environment. This role is ideal for a networking professional with a strong foundation in core infrastructure and hands-on, production experience with Zscaler as a key component of a Zero Trust/SASE strategy. You''ll play a critical role in maintaining and enhancing a modern network architecture that supports a fast-paced, globally distributed business. Key Responsibilities: Support, configure, and maintain enterprise network infrastructure, including Routers, Switches, Firewalls, VPNs, and cloud-based network services Administer and support Zscaler as a core security platform, ensuring secure access and alignment with Zero Trust principles Monitor network performance and availability; diagnose and resolve issues to ensure optimal uptime Assist with the design and implementation of secure, scalable network solutions Collaborate with infrastructure, security, and business teams to resolve incidents and support initiatives Maintain accurate documentation for network configurations, processes, and incident resolutions Participate in an on-call rotation and respond to network incidents as required Key Requirements: Proven experience as a Network Engineer within financial services or a similarly regulated, security-focused environm