You can create a profile on Golang Cafe and contact Golang Developers for hire.
I am a freelance Go developer working cooperatively with other developers. I have ~10 years of experience at medium to large tech firms and have worked on some of the biggest and most scalable codebases in the world. I can bring a team with varied skill sets outside of my own to fit whatever your teams needs are whether it's a quick project or building a greenfield platform from the ground up. More information on me and my team can be found on https://willowbark.org