Citadel provides a challenging, fast-paced environment that combines the best features of a startup and a larger player. There is a large degree of autonomy in technical decision-making and architecture choices, with an emphasis on being able to contribute as widely and cross-functionally as possible, typical of startup environments where you have to "wear many hats." This always leaves one feeling like there is never a shortage of learning opportunities.
At the same time, there are a large amount of resources to lean on, spanning compute infrastructure, data ingestion, infosec, etc.
It is very straightforward to feel your impact on and stay connected to the business, as projects require direct and ongoing communication with stakeholders and are designed from the onset to be quantitatively measurable. I highly recommend the company for any self-motivated engineer or analyst who cares about being able to assess the effect of their contributions all the way to alpha generation and P&L.
The amount of knowledge within the organization is staggering and sometimes makes you feel like you are drinking from an information firehose. Nevertheless, finance is at a stage where this assimilation of information is a necessary precondition for success. Being able to acclimate to this environment leaves one more resilient and versatile in the end, and acts as a career amplifier at Citadel and in the industry as a whole.
There is some need for information barriers inherent to the industry, but despite these necessities, management is always transparent and keeps you informed about the broader picture and organization-wide initiatives.
Terribly difficult OA. 4 questions in 120 minutes. I was reading on Reddit, and the average solved is one question, and that's it. I have no idea who is expected to solve all of this, but who knows.
The overall approach was mostly a "medium binary search" over the solution space. It's definitely doable. Try to reach for the optimal solution, otherwise test cases will fail. It was a pleasant experience. Good luck to everybody.
Couple of behavioral questions, then straight into one technical problem. All done through CoderPad with a total time of 45 minutes. The difficulty was a LeetCode medium, while you explain your thought process while implementing.
Terribly difficult OA. 4 questions in 120 minutes. I was reading on Reddit, and the average solved is one question, and that's it. I have no idea who is expected to solve all of this, but who knows.
The overall approach was mostly a "medium binary search" over the solution space. It's definitely doable. Try to reach for the optimal solution, otherwise test cases will fail. It was a pleasant experience. Good luck to everybody.
Couple of behavioral questions, then straight into one technical problem. All done through CoderPad with a total time of 45 minutes. The difficulty was a LeetCode medium, while you explain your thought process while implementing.