Pros
Most of the people at Aspen are really nice to work with. Pay is pretty good. Aspen is regarded as the best in class in many areas of software that they sell into, so there is some prestige in working here if you are in the energy industry and are familiar with Aspen's software.
Cons
The CEO simply does not care about the employees. Not only is there a mandatory 3/2 hybrid work policy (in office Tues/Wed/Thurs every week if you are <50 miles from an office), and now you literally have to check in every week in Workday to say where you are working from every single day. It's total micromanagement insanity. When asked on a recent all-hands call about employee concerns with sustainability due to all the driving the new policy required, he responded with, 'Hey, if you are worried about sustainability, go buy a Tesla.' He said he had 6 pages of questions submitted about the 3/2 policy and then ignored and didn't address any of them and basically said we're doing this no matter what you say. This is what 'listening to employee concerns' looks like at Aspen. I expect a lot of employees to leave and a lot of future delays and failure to meet milestones. I know of a handful of people who have already told me they are looking elsewhere and so am I. Aside from asinine policies that don't fix anything, the benefits are really middle of the road and the bonus system does NOT pay anything close to your 'potential' bonus. The mandatory hybrid model ends up costing employees a lot of extra expenses so keep that in mind before applying.