Pros
They know how to make attractive promises pre employment. Unfortunately, it is all fluff.
Cons
Zoltek's leadership follows trends and buzzwords; a true sign they lack the ability to create and execute business strategies of their own. I was hired to implement some lean manufacturing processes -- VP level management would market my work as their own which I didn't really mind. However, they would take over my projects, severely bloat the cost of initiatives, and ultimately fail at achieving implementation; the kicker is they'd blame me for their mismanagement. I have a proven career track record of achieving results / Zoltek has a proven track record of mediocre performance, sad leadership, and poor treatment of its stakeholders -- especially employees. Don't make a career mistake of associating with this organization.