Vazquez currently is SVP/CFO at the $5.6 billion American Airlines FCU at Dallas-Fort Worth.
Card processor says chip-and-PIN worked for Bank-Fund Staff FCU members in six countries.
Penetration nearly universal in some European countries, nearly nil in some African nations.
After 25 years in the job, Tun Wai to step down in February.
Frustrated by months of congressional inaction, President Obama on Saturday made a recess appointment of Jeffrey Goldstein as undersecretary of treasury for domestic finance.