Chatchai Tanachaiwiwat is a 36-year-old unmarried project manager with over 15 years of experience managing engineering and service teams for security and CCTV installation projects. He has a Master's degree in Industrial Management and Bachelor's degree in Industrial Engineering. As a project manager, he is responsible for organizing and managing large installation projects for hospitals, banks, and gas stations, ensuring projects are completed on time and on budget. He is skilled in AutoCAD, Microsoft Office, and Japanese and has certifications in quality management systems.