Professor Joshi has held visiting faculty positions in several countries, conducting research and lecturing. He has won several awards and fellowships to scientific academies. He has held the positions of Adjunct Faculty, Fellow, and Visiting Scientist at Cambridge University, UK, Harvard University, US, New York University, US, the University of Pittsburgh, US, the University of Southampton, UK, Osaka City University, Japan, the University of Basque Country, Spain, the University of Natal, South Africa, Queen Mary and Westfield College, London, Milano Polytechnic, Italy, and the University of Cincinnati, US, among others. He has also done considerable work on science outreach, delivering lectures, writing articles and books, and through television and print media interviews.