Leadership
Management

Simon Billingham
Chief Financial Officer (interim)
Simon was appointed Interim Chief Financial Officer and Interim Joint Company Secretary of Trajan Group Holdings Limited in May 2026.
Simon joined Trajan in 2011 as European Financial Controller and since relocating to Australia in 2017, subsequently served as General Manager of Finance with enterprise-wide responsibility for the Group’s global finance function and has played a key role in a number of the Company’s significant milestones.
He has over 15 years’ experience in senior finance roles, starting his career and spending more than seven years at Deloitte UK. He is a Chartered Management Accountant (CIMA).

Andrew Gooley PhD
Chief Scientific Officer
Andrew has 40 years of experience in R&D and leads a multidisciplinary team of scientists and engineers on a diverse range of projects from medical device development, separation science instrumentation prototyping, through to consumables for the global analytical science community. Andrew has been responsible for the execution of a range of collaborative programs with the Australian academic and medical research community focused on the translation of research outcomes into new product development.
Prior to his time at Trajan and SGE Analytical Science, Andrew was the Chief Science Officer at Proteome Systems. Andrew is currently Enterprise Professor at the University of Melbourne’s School of Chemistry.

Nigel Gilligan
Chief Operating Officer
Nigel provides operational leadership across Trajan’s business. His responsibilities include global operational, manufacturing, production engineering and supply chain operations. Nigel has 20 years of leadership experience in pharmaceuticals, medical devices and scientific instruments. Prior to joining Trajan, Nigel was Europe General Manager & Director of Europe, Middle East & Africa (EMEA) Regional Operations at Pfizer Inc. and APAC Head, Supply Chain at Mayne Pharma.




