Arjun is described as an individual who is passionate about understanding and developing intelligent systems. His professional background involves research in brain-machine interfaces, the construction of artificial intelligence processors and development of AI sidekicks. XOKind, a company that Arjun currently works with, has a mission of simplifying human planning and decision making by distilling the world's information. The company is achieving this mission through the development of agents that are powered by state of the art artificial intelligence algorithms. These agents are designed to be trained on specialized hardware. Finally, XOKind is actively seeking individuals to join them on their mission. The available roles in the company are described on their website, which can be accessed via the link provided within the text.