Pros: There are some really nice and smart people. Work can be interesting. Having a barista on-site is quite nice.

Cons: Shame those nice people are not in a position to make change. Optiver used to be a nice place to work. Then management and HR decided that people could be more productive if they were told that everything they do can be better or done faster. A toxic culture of blame. People become withdrawn due to the excessive load and expectations. Some teams are worse than others. If someone decides a person should go, they will be bullied out of the company using a performance improvement program. If you are going through hiring, make sure to ask for a proper base salary, since your bonus depends on your rating, and that is at the mercy of management.

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: Good place to work if you want to be paid reasonably well, but not have too much pressure.

Cons: No scope to push your own trading ideas; you can only implement ideas coming from trading.