Pros: Great benefits (daily hot meals and coffee, weekly massage, gym membership, etc.). Interesting work. Coworkers are smart and easy to work with. Management is approachable.

Cons: It was bit stressful at times. The gender ratio in technical positions is not great.

Pros: Definitely a great place to work: collaboration across teams, sharing of knowledge across teams and offices. Focus on diversity. Focus on organizational structure, which changes periodically to reflect changing business needs and to fix what's not working. High performers are rewarded extremely well. Senior management shares the current state of play, forward-looking plans, earnings, and other metrics (which aren't shared in other similar firms). Excellent facilities: food, gym, massage, discounts, company trips, parties, swag... a long list.

Cons: A few senior staff continue to knowingly exercise rude behavior with people who are relatively new in the firm.

Pros: Good food and large bonuses

Cons: Extremely political. The majority of where you must spend your time to survive at Optiver is politics. If you do not, you will be eaten by others that do. Management has zero interest in dissuading this behavior. Watch your commits, as large pieces of work will be quietly re-based into other developers' names. This is not by accident, as you'll start hearing word back that they're bragging about having written the code. Poor management promotes the worst people to management roles after seeing their own negative traits in them. Management is also gifted to long-term employees who cannot keep up with the technical work anymore. These managers all review each other, ensuring the quality stays low, as poor management has the majority and removes anyone that doesn't have the negative traits they hold up as ideal.