Simon has joined the club from Leicester City Football Club, where he served as finance director, and brings 16 years of experience in supporting business operations and organisational growth within the football industry.
Simon was previously finance director at Sheffield United plc from 2007 until 2010 before spending almost 12 years with the Foxes.
During his time at the King Power Stadium, he played a prominent role in supporting the club's development, with revenues rising from £20m to peak at £200m as the Foxes won the Premier League.
He was also an integral part of the management team that developed a new world-class training facility at Seagrave.
Born in Kingston, Jamaica, Simon attended Southampton University where he read Geography before beginning his career as a professional in finance with Touche Ross & Co (now Deloitte) in London.
Simon spent ten years based in Zambia, initially with Deloitte, and then subsequently running the Arthur Andersen practice for seven years across East and Southern Africa.
Simon said: "This is a wonderful opportunity to be part of a team that is committed to excellence in all areas.
"Newcastle United is challenging football's status quo and has embarked on an exciting journey to build a sustainable, leading, Premier League and European club.
"Moving back to the north of England - where I have previously lived - has also been a major influence. People in the North East are friendly and passionate, and this is a hugely exciting city and club to be part of.
"I am already enjoying working with and getting to know the club’s hugely talented staff and look forward to our journey together."
Newcastle United CEO, Darren Eales, said: "I'm delighted to welcome Simon to Newcastle United.
"He is an extremely talented and experienced finance professional and has a fantastic track record in leadership roles in the football industry.
"Simon will be an integral part of the club's senior management structure and will oversee our finance operations as we press ahead with the commercial growth that will drive and sustain our future successes."
