Salary: £126,000 - 135,000 per year Requirements: Proven experience in enterprise and data centre network architecture, with strong knowledge of Cisco technologies. Deep understanding of Green IT Infrastructure design and implementation. Strong leadership skills and the ability to guide technical teams and stakeholders effectively. Excellent communication skills, capable of translating technical details for diverse audiences. Experience working within the UK Public Sector and critical national infrastructure environments. Knowledge of security, services, processes, and systems integration. Familiarity with communication/telco systems and working within eco-systems involving multiple suppliers. UK national with a minimum of five years of unbroken residency. Responsibilities: Lead the design and implementation of enterprise and data centre network architectures, ensuring alignment with security, services, and business needs. Provide comprehensive network solutions, including logical and physical designs, security, and integration with broader IT systems. Ensure architectural governance and compliance, working closely with peer lead architects and reporting to the Chief Architect. Collaborate with multi-supplier eco-systems, including IBM-led teams, to deliver Green IT Infrastructure solutions. Communicate complex technical concepts clearly to non-technical stakeholders, including senior leadership and external partners. Apply your expertise within the UK Public Sector and critical national infrastructure, including emergency services and communication systems. Technologies: Architect Cisco IBM Network Security LAN More: We are a reputable organisation supporting critical national infrastructure, hiring for a Lead Network Architect to join a high-profile project. This role offers an exciting opportunity to shape enterprise and data centre network architecture within a dynamic environment. Located in London with a flexible work arrangement of 2 days onsite and 3 days remote, we provide a fantastic chance to contribute to vital national projects with a forward-thinking organisation. last updated 14 week of 2026