Jonathon qualified as a Chartered Management Accountant in 2002. He grew up in Kent in the South East of England and for the most part of his career has worked in the Financial Services Industry in London.

He graduated with a Masters in Chemistry from Oxford University in 1997, after which he began his early career in management and financial accounting. This evolved to incorporate business analysis and project management. His employers have included two international investment banks, a FTSE 250 inter-dealer broker and a small commodity trading company.

He moved back to Kent in 2008 with a young family. He set up JLSN Limited in 2011 when he began private consulting work. When Jonathon obtained his Practising Certificate in 2014 he expanded the business to offer accounting services to small businesses.