When Jon Grief started working at Downham’s Arbuckles restaurant clearing tables in 2013, he would have been hard-pressed to imagine he would be taking on the top job just over 10 years later. Back in December 2013, while Jon was at Downham sixth form, he took on a part-time role as a table busser at the popular family restaurant and bar on the A10 serving American-style food. Having worked his way up through the ranks over the past decade, 27-year-old Jon was officially promoted to managing director last month. Announcing the promotion in a post on the Arbuckles Facebook page on April 8, the …