Angelos was never a NETSEC employee; his work on the OpenBSD IPSEC code was at one point funded by NETSEC, but if you're familiar with how OS kernel "volunteer" development works, that's not a weird situation at all --- there were, if I remember my semi-sober conversations with him at the Ship & Anchor correctly --- plenty of times Theo found himself in similar relationships.

It's unlikely that NETSEC would have had any management influence over Angelos during that work.