Julian Garrett
BEng Managing Consultant , United KingdomJulian is a highly experienced telecommunications professional with over 25 years of leadership in mobile network innovation and transformation, with a track record spanning 19 countries.
A strong communicator, Julian excels at bridging the gap between technical detail and business strategy, engaging confidently with everyone from C-level executives to engineering teams.
He is focused on the technical aspects of radio network design but has also been in advisory and technical expert witness roles for government.
Julian is someone who “likes getting his hands dirty” – as a delegate and active contributor to the standards bodies, his main area of contribution is to Working Group 10 of the O-RAN Alliance (Data Model).
Julian has also held positions as the Head of Network Automation for Vodafone UK, VP Operations for Aria Networks, National Radio Manager for 3UK and Engineering Services Director for Enersus Australia.
Education
Canterbury University, New Zealand
- B.Eng – Electrical and Electronic Engineering
Other team members
Dave Tanner
Managing ConsultantDave Tanner is an highly experienced senior engineering professional with 30 years of specialist technical and operational expertise in telecoms, specifically, wireless (2G-5G/ WiFi/ IoT), fibre and satellite.
Sebastiaan van den Deijssel
Managing ConsultantSebastiaan has over 15 years of professional experience in marketing, product development, sales, customer care, BSS/OSS, and business modelling for Telecom. He is one of the foremost experts in the field of MVNEs and MVNOs. He gained his experience in key roles within MNOs, MVNOs as well as MVNEs in Europe, Middle East, Africa, Caribbean and the USA.
Stefan Zehle
Chairman and CEOStefan is the CEO and the co-founder of Coleago Consulting. He has been working in telecoms since 1987 with experience in over 65 countries. Stefan is a director of a start-up mobile operator, and an expert in spectrum valuation and licensing.