After completing his training at Simmons & Simmons, Jason qualified as a solicitor in 1998 and became a partner in 2006.
From 2000 to 2003 he was on secondment to leading Japanese law firm TMI Associates in Tokyo.
Jason was head of the firm’s Corporate & Commercial practice throughout Asia from 2012 to 2015.
He has been recognised as a leader in his field by numerous legal directories. Teams led by him were awarded M&A Team of the Year (Medium-Sized Deal) – Highly Commended at the British Legal Awards 2017. Asia Pacific Legal 500 notes Jason as an "excellent technical lawyer with an understanding of strategy and negotiating technique" and recommends him as "experienced at handling cross-border M&A matters".
He is highly rated by Chambers Global and Chambers Asia Pacific, including recognition as a Notable Practitioner, ranking in the top tier of English-qualified lawyers active in connection with Japan and noting for "high praise from clients" with "deep knowledge of legal issues and extensive experience" and peer recognition as an "effective operator".
He has also been listed in IFLR 1000, reporting client comment that "Jason and his team did a superior job representing our company on a large divesture", the International Who's Who of Corporate Governance Lawyers and Who’s Who Legal, which noted him in connection with M&A including in the TMT market, remarking on him as a "leading authority" and commending him for his "comprehensive advice". He has been named as a BTI Client Service All-Star for combining exceptional legal expertise with practical advice, business savvy and innovative, effective solutions.
Jason is co-author of the Japan section of Kluwer Law International’s Corporate Acquisitions & Mergers. He is a fluent Japanese speaker, has passed the highest level in the Japan Foundation Japanese Proficiency Test and won the 1998 JETRO sponsored Sir Peter Parker Spoken Business Japanese Awards.
Jason was a founding committee member and is a former secretary of the British Japanese Law Association, which in 2009 received the Ambassador's Commendation from the Embassy of Japan for its contribution in promoting exchange between Japan and British lawyers.