Pros: The people are the best part of Optiver, and they are why it is successful. As an intern, I was able to work with and learn from firm leadership, development leads, and developers at a wide range of experience levels. The human investment poured into my experience was great. Chats about technology at the firm in general and my work in particular were regular and helpful. Because of these engagements, I felt that I was both able to add real value during my internship, learn more about development, and learn more about the industry. The principles with which Optiver trades and develops are heavily stressed. These principles allow them to both work with intention and manage risk effectively. A developer intern has the opportunity to learn more about these principles and see them in practice at Optiver. Finally, developing production systems requires a different mindset and a different set of skills than academics. The internship can help you on your path to becoming a real-world software engineer.

Cons: Resources to get general trading knowledge didn't seem very well presented to me during the onboarding process. I felt that I learned these things gradually and on my own throughout the internship. Although, this isn't completely a bad thing.

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: Teamwork. Company ethics. Work with people from diverse backgrounds from all over the world. Inter-office communications. Great perks. Accessibility of management.

Cons: Sometimes they will keep poor-performing people around a little too long before firing them. Also, it can take an excessive amount of work to get everyone required to sign off on a new idea.