Joel Joseph Marciano Jr. is a professor at the Electrical and Electronics Engineering Institute at the UP Diliman and is currently the acting director of the Advanced Science and Technology Institute of the DOST. He obtained his Bachelor of Science in Electrical Engineering from UP Diliman and his PhD in Electrical Engineering and Telecommunications from the University of New South Wales in Sydney, Australia. He was the UP-Dado Banatao Postdoctoral Fellow at the University of California, Berkeley in 2004 and at the School of Electrical and Computer Engineering at the University of California, San Diego (UCSD) in 2005. In 2007 and 2009, he was a visiting associate research scientist in UCSD.

His research interests include wireless communications and small satellite systems engineering as applied to rural connectivity, emergency response communications, disaster risk reduction, and scientific earth observation. Marciano is a recipient of the Gawad Chanselor Para sa Natatanging Guro in UP Diliman, the Most Outstanding Electronics Engineer in the field of Education from the Institute of Electronics Engineers of the Philippines, the 2015 Manila Water Foundation Prize for Engineering Excellence, and the Distinguished Alumni Award in Science and Technology from the UP Alumni Association in 2017.