Guild Wars 2

Hello!
I have a level 42 Engineer that im leveling in PvE currently, but I need some help

What are some builds that are nice for engineer? Are there any builds that are fun to play in PvE?
I do plan on playing PvP and WvW eventually with this character but later
Im more concerned with finding a fun, effective build for PvE.
Any Advice? Thanks!

tomorrow is the biggest update in the history of this game so i will come back then to answer this question as everything from traits to weapons kills to utilitys will change. engineer will get a major rework and buff

P.S. Unlock mortar now if you still haven’t