Siggi Jonsson

Siggi Jonsson, holding an MBA, serves as the General Manager of Strategy and Business Improvement for Major Projects at Transgrid since October 2025. Prior to this role, Siggi was the Vice President of PNG Business at Santos Ltd from December 2011 to November 2025, overseeing oil and gas assets in Papua New Guinea, including operations and strategy development. Earlier experience includes leadership positions at Oil Search, where responsibilities ranged from Chief Transformation Officer to Subsurface Lead, and significant roles at Roc Oil Company and Schlumberger, focusing on reservoir engineering and product development. Siggi's academic credentials include an MBA from the Australian Institute of Business and a degree from the Norwegian University of Science and Technology.