He designed his first chip, a smart CMOS image sensor delivering the Radon Transform of an input image binarized with an automatic threshold, as his graduation project. From 1994 to 1996 he was a graduate student at the Institute of Microelectronics of Seville. Later, from July 1996 to June 1998, he worked as a Research Assistant at Prof. Chua's laboratory at the EECS Department of the University of California, Berkeley. From 1999 to 2005 he was an Assistant Professor at the Dept. of Electronics and Electromagnetism at the School of Engineering of the University of Seville. He taught "Circuit Analysis and Synthesis" and "Circuit Synthesis Laboratory" for the degree on Telecommunication Engineering and "Smart Sensory Processing Microsystems" for the degree on Electronics Engineering. He was awarded with a Certificate of Teaching Excelence by the University of Seville.
Since 2005 he is a Tenured Scientist of CSIC at the Institute of Microelectronics of Seville (CSIC). His main research areas are vision chips, in particular, smart CMOS imagers for low-power vision applications like robotics, vehicle navigation and vision-enabled wireless sensor networks. He is also interested in CMOS-compatible sensing structures for LWIR and MWIR imaging, single-photon detection, and detectors for X-ray and high energy physics. He has designed several vision chips, some implementing bio-inspired nonlinear dynamics emulating the behavior of the retina. He also held a PostDoc at the University of Notre Dame, Indiana (2006-07), at Prof. Porod's laboratory, were he studied the interfaces for CMOS-compatible nanostructures for multi-spectral light sensing. He currently teaches "Interface Circuits for Integrated Sensors" at the Master in Microelectronics and the Doctoral Program in Physical Sciences and Technologies at the University of Seville.