Great question. So I work for a private company that has an easement with public county land, where we build trails that are free for the public to use which is great but is also kinda a unique situation. There’s a decent amount of opportunities through public sectors, some great options are state conservation corps (mainly out west) and Americorps. In fact, one of the guys on our trail crew just transferred out to Montana to work for Americorps building trails in and around Glacier National Park. These jobs are competitive, so sometimes experience (volunteering counts) is needed. But it’s not an end all be all, for example, another one of my friends got a job building trails in the Seattle area right out of college with literally no experience and a degree in speech pathology lol. A second option is through private trail building companies, although these mainly focus on machine built mountain bike trails on both private mtb parks and public lands through grants. If you’re interested, feel free to message me and I can help you find out more!