After working on a variety of systems for over a dozen years, Jon Paris was introduced to the System/38. This began a "love affair" that ultimately led him to join IBM’s Toronto laboratory, working on the S/3X and AS/400 compilers. While with IBM he played a major role in the definition of the RPG IV language and in promoting its use.

Jon left IBM in 1998 to focus on providing IBM i users with education and consulting services to enhance their application development skills.
Together with his partner Susan Gantner, Jon runs Partner400, a consulting company focused on application modernization on the IBM i platform.
Partner400 are also one of the founding members of the System i Developer education consortium - hosts of the RPG & DB2 Summit events which are held twice annually.

Jon and Susan also co-authored IBM's Redbook for RPG programmers, entitled: Who Knew You Could Do That with RPG IV - A Sorcerer's Guide to System Access and More. They are also technical editors for IBM Systems Magazine - IBM i Edition and authors for IT Jungle and other IBM i-related site. You can check out the collected works of Jon and Susan at authory.com/jonparisandsusangantner