An initial chat with the CEO, followed by a four-part technical assessment and lastly a chat with a co-founder. The product they're working on seems really interesting and genuinely useful to the open-source RL ecosystem. The CEO was great to chat to and learn about. The technical assessment is with TestGorilla and had four parts. 1: Dynamic Programming with Lists in Python, 2: Data Structures and Algorithms in Python, 3: Reinforcement Learning 'Test' and 4. Deep Learning 'Test'. On the technical side I fell short on the tests - they were very heavily academically aimed with lots of multiple-choice questions on curveball/trivia from some 1980's reinforcement learning techniques and a pen-and-paper maths focused deep learning test. Most of the nomenclature and techniques of these tests are something academically tested by rarely used by industry or common frameworks. I withdrew my application after crashing the 'tests' as either the tests didn't cover the actual activities of the role, or I was woefully unsuitable for the role.