She currently serves as a lecturer at UTP, where she coordinates academic programs such as PDP 1 and Capstone projects, and contributes to the university's safety cluster and the Center for Corrosion Research. Her recent work includes collaborative research on CO2 pipeline corrosion and hydrogen-induced degradation in composite materials.

Dr. Fahanis has held multiple postdoctoral positions, notably leading corrosion mitigation projects with Sarawak Energy Berhad and developing self-healing coatings for oilfield pipelines. She has also managed high-end instrumentation labs and led membrane technology research teams at USM.

Her scholarly contributions include over 19 publications in Q1 and Q2 journals, with an H-index of 9. She has presented at numerous international conferences and has been actively involved in consultancy projects, including cathodic disbondment testing and coating system evaluations.

Dr. Fahanis is also a dedicated mentor, supervising postgraduate and undergraduate research, and has served as an external examiner and judge in academic competitions. She has received research grants such as FRGS and PRGS, and continues to contribute to the scientific community through training, seminars, and collaborative initiatives.