Sajid Siddique is a former civil servant with a long and varied experience of public sector. He has served in the Federal government as well as in provincial governments of Baluchistan and Punjab on different assignments. His areas of expertise include Public Financial Management, Local Governance, Institutional Development, and Capacity Building and Trainings. Before joining SDSB as Executive in Residence, he was Director General National Institute of Management (erstwhile NIPA) Lahore. He has worked as consultant on projects funded by WB, USAID, ILO, ADB, and UK Aid.

He holds an MBA degree from Said Business School, University of Oxford, an MSc degree in Social Policy and Planning in Developing Countries from London School of Economics (LSE), and an MA degree in Public Administration from University of the Punjab.