Pros
Colleagues are very intelligent. There is no doubt about that, but that is the only pro I can think of.
Cons
1) Leadership and management is bad. They do not value engineering, which translates to compensation that isn't competitive and lack of focus on advancing engineering career. 2) Voleon is a quant shop, but its compensation is no where near the compensation at the top tier quant shops. In fact, the compensation is even below that of Google and Meta, and that's not even accounting for all the monetary benefits (e.g. 401k match, reimbursements for many things like gym memberships, no free food) you get from FAANG. You will hear many stories from colleagues and online reviews that management hooks you in the beginning by exaggerating/lying about how your compensation will grow, but this is ABSOLUTELY NOT TRUE, and there will be endless excuses about how bonuses either cannot be paid or why bonuses are so low. 3) Turnover is very high due to the aforementioned issues 4) They fire people right before annual bonuses. The organization is extremely cheap for a quant shop. I advise caution for anyone considering joining this place. You're better off going into FAANG or another quant shop with the current culture. This is my assessment for the past couple years, which are corroborated by my peers and ex employees, but I hope the company can change for the better, otherwise they will continue to lose many employees and will have a difficult time attracting top talent.