Awesome, you are kind of describing my dream job. Any particular hobby projects you are willing to share? I'm working on something myself trying to use eBPF/XDP offloading for a particular protocol
Lately I have been enjoying NetBSD on a EdgeRouter-4 (Octeon MIPS). I am trying to port some of the OpenBSD Octeon improvements like the MMC driver and maybe SMP support. On FreeBSD I have been pushing some changes to the 1, 2.5, and 10gbit Intel drivers that will decrease driver overhead a few percent.