1. Graduate Research Assistant, Photonics and Energy Research Lab, UTRGV.(i) Preparation of surface-modified nanofiber-based Triboelectric nanogenerator by Forcespinning technique for energy harvesting device and body motion sensor application (Project funded by NSF-PREM).(ii) Synthesis of CsPbX3 perovskite photoluminescent nanocrystals at ambient condition, blue to green color tunability and applied it in the preparation of luminous PMMA CsPbX3 fiber by forcespinning method (Project funded by NSF-PREM).(iii) Investigation of different molecular weights and solvents (DMF and Water) effect on PVP nanofiber by centrifugal spinning method (Project funded by NSF-PREM).. Research Assistant, Macro-to-Micro scale Fluids Engineering Lab (MuFEL), Bangladesh University of Engineering and Technology, (BUET).Computational research experience in CFD on Effect of Variable Upstream Pressure on Shock Train Structure in a Diverging Duct by using ANSYS Fluent (Project awarded by Higher Education Quality Enhancement Project (HEQEP) of Education Ministry of Bangladesh.)