Noraziah Muda is the Head of Renewable Energy and Green Technology Unit, TNB Research, the research subsidiary of Tenaga Nasional Berhad, TNB. Her responsibilities include leading and driving the overall strategy for R&D and services in the field of renewable and green technologies which provide overall decarbonization solutions from power generation up to interconnection to TNB Network.​

Her expertise is on the green energy transition projects such as Carbon Capture and Utilization (CCU), where she works on the potential of converting CO2 from power plants into useful commodities for other industries, in conformance to the Circular Economy framework. Her other area of expertise is green hydrogen production and use. She has also been highly involved in the research and development of renewable energy projects, such as grid-connected floating solar PV system design, PV system performance and reliability improvement, emerging solar PV technology, waste to energy and low-speed wind technology, and others. Her works have been published in numerous technical publications.

She is the technical committee of many working committees under Jabatan Standard Malaysia, MOSTI, SwCorp and TNB. She is also the technical reviewer of local and international journals and currently serves as an external examiner for Higher Learning Institutes in Malaysia.​