[4] He later studied for a Postgraduate Diploma in electronics at the Welsh College of Advanced Technology (1965) and then undertook a PhD in computing at Churchill College, Cambridge under the supervision of David Wheeler[2] (awarded 1968).
From 1968 to 1985, Joseph worked on programming as a fellow and senior research scientist at the Tata Institute of Fundamental Research (Mumbai, India) and then became professor of computer science at the University of Warwick in England for 12 years (1985–97).
His most cited paper, "Finding Response Times in a Real-Time System", with over 1,500 citations on Google Scholar in 2021,[7] was joint work with Paritosh Pandya, published in The Computer Journal in 1986.
[8] This paper won a 2020 Test-of-Time Award, announced at the 27th IEEE Real-Time and Embedded Technology and Applications Symposium (RTAS 2021).
[9][10] Joseph is the author of Digital Republic, a personal reminiscence that also charts the development of Information Technology in India and the issues involved.