Shawn,
where do you get that position from? What are SFIs, SFEs, if not certificated? Additionally, TRE/TRI authorities are either a/c only or a/c and sim. EASA doesn't certify flight crew yet either: it's still a JAR FCL function.
Admitedly, there are no additional requirements for instructors conducting non-regulatory training (i.e. not for an LPC/OPC or TR course) other than the simulator provider's own IOS course (which is largely for insurance purposes.)