Sanjay is the principal author of the book "Engineering Internet QoS" Artech House, Boston). Over 20 universities are using this book worldwide. He is also a co-editor of the book Wireless Sensor Networks: A Systems Perspective .

Sanjay has also worked as an industry consultant for major organizations such as Canon Research Lab (CISRA), DSTO, Lucent and Fujitsu. At Fujitsu Australia Ltd, he was responsible for developing a module for their LAN/SDH interface. As a visiting scientist, he was responsible for developing a part of Quality Assurance Language for monitoring network QoS performance at Columbia University.

He was formerly also associated with the Network and Prevasive Computing (NPC) program of NICTA and a project leader of the wireless networking project at the Smart Internet CRC. Sanjay is a participant in CeNTIE project project funded by the commonwealth Govt. through Building on IT Strengths (BITS) Advanced Networks Program (ANP).

Sanjay is currently supervising a large number of PhD candidates. A complete list of students can be found here.