Geoffrey Decker
NIU instructor and mainframe educator; EMMA co-founder
reven-oge
Cortland, Illinois
Joined May 2026
Summary
Experienced mainframe educator who builds rigorous, hands-on curricula to prepare students for production work. niu+2
Advocate for expanding access to mainframe careers through apprenticeships and non-traditional training pathways (co-founder and lead instructor of EMMA). planetmainframe+1
Active industry and community connector who brings students to conferences, serves on the Open Mainframe Project governing board, and holds multiple IBM Champion recognitions. openmainframeproject+2
Community musician and lifelong student of music and history who contributes to local orchestras and writes program notes. kishorchestra+1