From 1982 to 1991 Oklobdzija was a research staff member at the
IBM Thomas J. Watson Research Center, where he contributed to the development of
RISC processors,
super-scalar, and
supercomputer designs. He obtained several patents on early RISC machine organization, including one on
register-renaming, which he co-holds with
John Cocke and Greg Grohoski. This patent described a key feature of the
IBM RS/6000. In 1988 Oklobdzija started his academic career as a Visiting Faculty Member at the
University of California, Berkeley, transitioning from his role at IBM. He later served as a Chair Professor in Electrical and Computer Engineering at
Sydney University in Australia. Receiving
Fulbright Professorships twice, in Peru in 1990 and
Argentina in 2012, he helped establish internet connectivity in
Peru in 1991 and developed academic courses in Computer Engineering. He has provided expert witness services, testifying at the
International Trade Commission Court and in civil court. At Siemens, which later became
Infineon, he served as a Principal Architect and patent holder for the
Infineon TriCore processor, an automotive control processor used in vehicles. He also contributed to the original
conceptual development of the
PlayStation at Sony. ==Research==