About CACI From our headquarters in London, we''re busy empowering organisations to make bold, strategic moves with the power of data and technology. Founded in 1975, our operations take place from multiple offices across the UK, Europe and India with over 1600 Full time employees and an annual turnover of £179m. Our expertise spans industries, from retail and education to public sector and transport - delivering intelligent solutions that drive progress and create measurable impact. Whether it''s business intelligence, customer marketing, cloud infrastructure, cybersecurity, critical national infrastructure or data management, our approach is never one-size-fits-all. We don''t just deliver solutions; we build for the tomorrow''s world, all while fostering a culture that allows employees to be their authentic selves and succeed in their careers. About Network Services CACI Network Services is a rapidly expanding specialist IT and Networks consultancy offering a wide variety of opportunities to work within challenging and exciting environments with our major clients in Global Media, Banking, Government, Telecoms andamp; Utilities SC Clearance Required Role Overview We are seeking a Senior Network Engineer with deep expertise in Cisco ACI, VMware NSX-T, and Firewall architecture, design, and operations. The ideal candidate will operate at a consultant level, providing strategic input on architecture and design while ensuring robust security and operational excellence across dat