Sounds like a startup, and with the small scale in mind, it should be whatever the team is most comfortable with. And ideally something that isn’t too hard to hire more people for. Makes me wonder what made them pick Java in the first place for the prototype, if there’s no love for it.
Edit: For task management, issue board etc. it’s probably best to let the team(s) choose/vote for what they enjoy working with, rather than prescribe it from the top. Your process is more important than what task management tool you happen to pick
Edit: For task management, issue board etc. it’s probably best to let the team(s) choose/vote for what they enjoy working with, rather than prescribe it from the top. Your process is more important than what task management tool you happen to pick