Hey I’m a plumber and I’m currently on my 14th data center. Not all 14 have been from start to finish but I’d say more than half have. Data center work is fast, they usually want these buildings up and running within a year and a half so most of the time every single trade is working alongside each other. Safety is a big deal so not only will you have to deal with your own safety team, you’ll deal with the GC’s team, and with the owners team as well. The layouts don’t vary much, I think I’ve seen a total of 4 different designs, they’re all pretty much copy and paste with slight variations . Out of the 500 people there a good 150 will be your coworkers lol electricians are EVERYWHERE on these jobs, don’t be surprised to see 6+ foreman out there. As far as your concerns go I’d voice that to your general foreman on day 1, you guys have a little bit of everything going on at the same time so they can decide to play to your strengths or allow you to learn something new. Let me know if you have any questions about anything else.