Siti Fatihah Salleh is an executive researcher at PETRONAS and a proud Chartered Chemical Engineer. She graduated with First-Class Honours in chemical engineering from UTP and completed a fast-track PhD in biochemical engineering at USM.

Her passion for biochemical technologies led her to earn a certification in Fermentation Technology from MIT. She specialises in process modelling and data-driven optimisation, always aiming for circular economy solutions.

Dr Siti has led multiple projects in chemical and biochemical engineering and is deeply committed to knowledge-sharing through CSR and industry engagement. As an HRD Corp-certified trainer and active PETRONAS youth club member, she actively promotes sustainability and mental health initiatives.