Jun 2017 onwards Associate Professor, Indian Institute of Science Education and Research-Thiruvananthapuram (IISER-TVM), Thiruvananthapuram, India Aug 2015 - Adh. Faculty, National Institute of Technology (NIT), Tiruchirappalli, India Mar 2012 - NIMS-Special distinguished researcher, National Institute for Materials Science (NIMS), Tsukuba, Japan Apl 2006 - Invited Scientist, National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, Japan Jan 2002 - Special Researcher Fellow, National Institute for Materials Science (NIMS), Tsukuba, Japan Nov 2002 - Guest Scientist, Max-Planck Institute for Metals Research (now Intelligent systems), Stuttgart, Germany

Wide bandgap materials and devices- Diamond, III-Nitrides and oxides. High-throughput techniques-Combinatorial synthesis: application to materials research-Materials information integration. Surfaces and interfaces- Stabilization and control investigation using surface analysis tools including synchrotron sources. Defect engineering-Control of defects for the improvement of physical properties/performance. High-temperature electronics- Fabrication of high-temperature functional devices. Power and energy conversion/regulating devices and device integration issues.