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Callum Barr currently serves as Principal Network Architect at Devoli and Principal Consultant at fivenines Consulting. With previous experience at WorldxChange Communications, Telecom NZ Ltd., and ICONZ, Callum has a strong background in network engineering, product development, and end-to-end service design. Specializing in core routing and switching, L3VPN/MPLS design, and IPv4/IPv6 network deployment, Callum has a proven track record of successfully designing and implementing innovative solutions to improve network reliability and reduce downtime. With a Bachelor of Commerce degree from The University of Auckland, Callum brings a wealth of technical expertise and leadership skills to the table.