so I'm not sure how one finds a position in the first place?
Well, this is my story, for what it's worth:
When I was 13, my family vet (SA) offered to let me shadow him after school and on weekends. I got to watch an awful lot of surgeries, and I could play in the kennel with certain dogs/cats who were there. I wasn't allowed to "do" anything at that point, other than give out kisses and hugs to the animals, but I loved it.
That vet was killed when I was 15, so I was out of vet med for about a year, pretty much just moping around. When I turned 16, I applied to the new owner of the hospital and got hired as an assistant. I had "some" experience, but they also knew me, and knew I could handle it. Spent most of my time walking dogs and cleaning cages, since it was a boarding facility as well. When I wasn't in the kennel, I was allowed in the room with the vet during appointments, learned the basics of restraint, and through "osmosis" learned about the different vaccines, foods, protocols, how to talk to clients, etc.
After a few months, I was more of an assistant than a kennel person. I was 16, learning how to take/develop x-rays, restrain, medicate, etc.
When I was 17, I worked full time on all school breaks and the vet and head tech really took me under their wing. they taught me how to monitor anesthesia, what to look for, how to hit a vein, how to place a catheter, run the labwork, and I was working the front desk as well actually dealing with the clients for the first time. I was there right up until I went away to college, five years in total, and was lucky enough to learn a LOT.
Applied for an assistant job once I was up at school, and after about two months on the job, they promoted me to "tech" because basically I was able to do everything. Continued learning there, worked at one other hospital that wasn't really a good fit before finally making the jump to where I am now-- I'm able to work with all species now, not just SA, which has been an even more amazing learning experience.
New Hampshire doesn't really require certification, but even in states that do "require" it, I've found many hospitals that were willing to look the other way for me, since I was capable of doing the work and not asking for much of a salary. It's really all about finding the right fit, where you can be useful, with people above you willing to take the time out of their day and teach you how to do it right. I wouldn't change my experiences for anything--I've learned from some awesome people.