NVM is not working on Jenkins execute shell

You need to remember that Jenkins is running commands in non-interactive shell so PATH is different from what a normal user has. One way to solve this problem is to invoke nvm with it absolute path.

Adding those solves the issue:

. ~/.nvm/nvm.sh
. ~/.profile
. ~/.bashrc

After struggling to get the suggestions above to work, I tried the NodeJS Jenkins plugin and it worked like a charm.

https://plugins.jenkins.io/nodejs/