Pros: Great pay. Great people. Great free food and perks.

Cons: Might be stressful to some.

Pros: I've worked at Optiver a long time. Every year it gets better. * The company is managed on the basis of principles and values, not process or politics. * Those principles and values align very nicely with mine: * Autonomy: there is very little hand-holding and extraordinarily high expectations of individuals in the company. The company rewards those that keep pushing those expectations higher with greater responsibility and authority. * Collaboration: there are a lot of great fights over the right way to approach a given problem. When we're at our best, everyone in the fight has a strong opinion but is also listening to everyone else and continually re-evaluating that opinion as new information, ideas, and opinions are expressed. * Prudence: the company carefully evaluates risk/reward trade-offs both when it comes to trading and technology decisions. The latest fads (cryptocurrency, esoteric programming languages, etc) are carefully evaluated, but reckless pursuit of them is frowned upon. I'll end with a sports analogy. Working at Optiver Chicago is like playing for the Patriots or the San Antonio Spurs. It certainly isn't for everyone. But if you like competing for the championship every year and always pushing yourself to be better, there's no better team to join.

Cons: If the company values do not align with yours, you will find it an increasingly frustrating place to work. Honestly, just read the cons from other posts and you can see how that plays out. If you find the principles above strange, out of fashion, or backwards, you'll agree with other people's cons. If you think those principles are refreshing, you will have a hard time coming up with many cons.

Pros: Optiver is a great place to work for motivated developers that want to hone their craft and view themselves as professional engineers. I enjoy working here because no one tries to hold my hand. There are plenty of opportunities to do impactful work and to grow. The development team is focused on staying lean and getting done what needs to be done.

Cons: Overall, the development team is rather young. A lot of effort needs to be put into growing these young developers, and some areas are lacking in expertise.