Giles is currently the President of First Philippine Holdings Corporation (FPH), one of the largest industrial conglomerates in the Philippines, focused on Power, Real Estate, Construction Services and Manufacturing and is part of the Lopez Group of Companies. He is also concurrently the President and Chief Operating Officer of First Gen Corporation (First Gen), and the President of First Philippine Industrial Park. He was appointed as the Vice Chairman and CEO of Energy Development Corporation last July 1, 2023. He sits as a board director of FPH, First Gen and Energy Development Corporation (EDC). Giles joined FPH in 1997 and was assigned to First Gen as its Chief Financial Officer to lead its $1.4 billion fundraising of the 1,500 MW Santa Rita and San Lorenzo gas-fired power plants. Giles also advised and arranged the financing of First Gen’s P58.5 billion acquisition of a controlling stake in geothermal operator Energy Development Corporation (EDC), in 2007. Giles previously worked as the Vice President for the Global Power Group in Singapore and Hong Kong of the Chase Manhattan Bank from 1990 to 1997. Giles completed his Master of Management degree from Northwestern University’s Kellogg Graduate School of Management in 1990 and his Bachelor of Science degree in Business Management from the Ateneo de Manila University in 1985.