Sangheon Choi is a Head of Data at CIRCA. Colleagues describe them as "I had the pleasure of working with Sang at X-energy. Sang is a well-rounded professional with a solid foundation in computer science, quick learning abilities, excellent communication skills. Sang demonstrated an interest and proficiency in DevOps methodologies and was able to quickly grasp new concepts. He actively engaged with team members, fostering an environment of open communication and teamwork. I am confident that his valuable skills and collaborative approach will continue to make a positive impact on any team he joins." and "I had the pleasure of working with Sangheon at X-energy, where we constructed software to facilitate design analysis. He is patient, thoughtful, smart, and eager to learn and build great software. He quickly became familiar with the necessary software tools to advance the project we worked on together and contributed significantly to completing it. His background in computer science and the experience he's gained for modern software practices make him an extremely valuable addition to a software team. He has a bright career ahead of him."