Salary: £15,600 - 16,800 per year Requirements: Active SC Clearance (mandatory)/n- Hands-on experience with Cisco SD-Access and Cisco SD-WAN in an enterprise-scale setting/n- Strong background in network security, routing, and switching/n- Ability to diagnose and troubleshoot complex network issues/n- Experience in the banking/financial sector is beneficial but not essential/n- Comfortable working in a hybrid environment with some on-site presence in London Responsibilities: Design, implement, and maintain Cisco SD-Access and Cisco SD-WAN solutions/n- Ensure network security, performance, and compliance with industry best practices/n- Work closely with internal teams and external stakeholders to deliver scalable and resilient network solutions/n- Operate within a hybrid setup, attending the London office 1-2 days per week as needed Technologies: Cisco Support Network Security More: We are 83zero, partnered with a leading bank, seeking an SC Cleared Network Specialist to join our team. This role focuses on the design, deployment, and support of cutting-edge network solutions. You will play a key role in enterprise-scale network delivery, ensuring high availability, security, and performance across a complex IT landscape. This position is based in London, with a hybrid work setup, allowing for 1-2 days per week onsite. last updated 6 week of 2026