BOK Financial, Headquartered in Tulsa, Oklahoma, BOK Financial Corporation (NASDAQ: BOKF) is a top U.S.-based financial services holding company with operations in Oklahoma, Texas, Arizona, Arkansas, Colorado, Kansas, Missouri, Tennessee and New Mexico. The Plan Services Specialist II is primarily responsible for ensuring the timely and accurate processing of plans assigned within the group, which typically includes retirement plans of varying levels of complexity, size and relationship sensitivity.