Optiver

The culture is always very supportive, everyone is always happy to help. You are able to chat with anyone at any level in the hierarchy. Tasks are generally individually assigned, but performed as part of a bigger team.

Everyone here has insane drive and passion for tech. AI is the hottest topic during lunchtimes, and you are expected to take ownership of tasks/projects from very early on. That means independently seeking out help/managing stakeholders. Devs have 5 levels and colleagues are generally quite warm/social