Ventajas
Worked with some extremely intelligent people and had some great mentors. Many people are passionate about their work and are excited to be doing it. If you don't quite enjoy your assigned project, you're able to talk to your manager and move between assignments rather easily and get a lot of different experiences at a single site (you need to be proactive). The PTO system is great. The 401k match is good. Health/dental/etc insurance cost is higher/lower based on your pay.
Desventajas
Was hired into HW, but was put in a different department and found out when they showed me my desk on day 1. Runs on people being passionate about their work, so they put in unpaid overtime to complete projects. The on-site culture expects this behavior and makes you feel uncomfortable about using your PTO. They pretend to prioritize employees over profit, but in reality, it's "profit over employees". The company says it values diversity/inclusion and such to employees' faces, but the on-site company culture is very different. I wasn't expecting much as engineering is a white male-dominated field, but I was at least expecting honesty or minimal commitment to the company's stated values. But somehow they managed to dig below the bar. Examples below: I have on several occasions worked 12+ hour days (even prior to 4/40 schedule). I've also heard people say they've worked 60+ hour weeks with unpaid overtime. As a young WOC, I was immediately treated as a secretary and had age-ist comments made against me on my first day of work and onward. When I reported this to my manager (a year later with documentation) they told me "That's just how it is". I also heard casual sexist/homophobic remarks being made. ** Pretty sure this differs from site to site, as I felt a lot more comfortable at a different site during a business trip. I was given specific terms on payment/fees for a business trip at the beginning of my assignment. Then ~4 months into the trip, I received an email that there was a "new agreement" in place that I was not notified of and didn't agree to. When I inquired further about the "new agreement", the person I spoke to said "At least we're not making you pay back X amount of dollars", even though that amount was correct in the original agreement and was paid prior to the "new agreement". When talking with HR, they provided me false information to "save" the company ~20 dollars even though it was a business expense. While the CDC was requiring Masking on-site, no one was doing it, and no one was enforcing it even after it was reported.