About John Smollen
John Smollen is a director at Architect Financial Technologies.
John Smollen reports to the SEC as an officer of 1 public company: Miami International (MIAX).
Experience
This experience comes from John Smollen's profile and from SEC filings. For roles taken from filings, the years are when the filings name John Smollen in the role, so the role may have started earlier or lasted longer.
Architect Financial Technologies Inc. Current
Director
2025 – Present · Chicago, IL
Provides trading technology, brokerage services and exchanges for institutional and individual investors.
MI
MidChains Current
Board Member
2020 – Present
MI
Miami International Holdings, Inc. Current
EVP, New Product Development
Executive Vice President (2014 – Present)
2014 – Present · Public company (MIAX)
QL
Quivet Neck Capital LLC Current
Managing Partner
2011 – Present
ST
StratiFi Technologies
Board Advisor
2020 – 2022
GI
Gatsby Digital, Inc.
Advisory Board Member
2018 – 2021
NT
Nico Trading
Director of Trading
2013 – 2014
GS
Goldman Sachs
Managing Director
1983 – 2011
CE
Chicago Board Options Exchange
Floor Director / CBOE Board of Directors
2001 – 2010
CB
CBOE
Member Vice Chairman
2006
SK
SPEAR,LEEDS and KELLOGG
SLP
1998 – 2000
CM
Cohen,Duffy and McGowan
Managing Partner
1983 – 1998
NS
NYFE, Ark Securities
FLOOR CLERK/ RUNNER
1983
Key Colleagues at Startups
The people John Smollen works with at each company, as listed on that company's latest Form D.
Architect Financial Technologies Inc. · Form D, Jun 11, 2026
Brett Harrison
Founder and Chief Executive Officer, director
SV
Steven Venino
Director
Karista Vaeth
Deputy General Counsel and director