Hammer has been a Class A PGA member since 2004 and a Certified PGA Professional since 2007. He has two specialty certifications from the PGA. One being in Golf Operations and the other in Instruction. John serves as ACIA's Director of Golf Course Operations at Green Tree Golf Course (since '09) and Brigantine Golf Links (since '16). He has also served as the Head Golf Professional at Ballamor Golf Club and an Assistant Golf Professional at Hidden Creek Golf Club, both in Egg Harbor Twp., NJ.