Julian strated his career in 1986 as a Systems analyst at Lloyds Bank. In 1988-1989 he worked as an Analyst Programmer at Security Pacific Hoare Govett. Later, he was a Business analyst at Kleinwort Benson and HSBC. From 1994 to 1996 Julian worked as a Banking and Treasury Consultant at Unisys. From 1996 to 1999 he served as a GM of Financial Services Business Unit, APAC at Hewlett-Packard. In 1999-2006 he had positions of Director of Financial Services, Asia Pacific and Director of Industry Sales, Asia Pacific at Sun Microsystems.
During 2005-2014 Julian worked at Juniper Networks, Cisco Systems and Hewlett-Packard. From 2014 to 2017 he was a Principal at Hortonworks and Director at TrapX Security. From 2016 and until now, Julian has been a Vice President, Asia Pacific at Hyperledger, Linux Foundation.