Pros
It's a good place to start if you looking to get into the clinical trials industry, if you are stuck for options. Always hiring because of the high turnover, (people start looking for jobs after a year because they realise career progression is just a joke here) You'll be given lead responsibility pretty soon if you are diligent (warning there is very little guidance and you are left to sink or swim in some cases). You get to experience a wide variety of sponsor trials (because the resources are pitiful and the current staff are speard thin as it is) You can make a bit of extra cash by doing some overtime (must hit over 20 hours a months to get paid, otherwise you won't get paid for it).
Cons
The management and senior staff's attitude can be disrespectful, depending on who you work with ofcourse. Main reason for the high staff turnover is the pay which is not competitive and also the lack of career progress. You are basically pigeon holed for a position that become open maybe once a year and are up against people with 2 or 3 years experience. Since you are dealing with timelines constantly, the work pressure can become unhealthy and can start affecting your mental health. If you are in that position my advice is to take a week off to unwind and then return to work, you'll know who else can pick up your work and why they weren't helping out in the first place. The reasource are so thin, that when heavy workload hits it will mean a week or weeks of overtime, I've worked with colleagues who worked 12 hours shifts on Christmas eve. If you onboarding during covid you'll get a taste of how little IQVIA cares about its employees based on the equipments that it send out, there is no ergonomic assessment so bother thinking you'll get a nice chair or assessment of your posture.