Satya Nadella was a developer at Sun Microsystems, which he joined in 1990.

Judge as of October 2017. True: Nadella worked at Sun Microsystems in a technical or developer role (for example as a member of the technology staff), having joined around 1990. Mostly true: he worked at Sun in such a role, but the year he joined differs from 1990 by a year or two. Mostly false: he was at Sun, but in a clearly non-technical role. False: he never worked at Sun Microsystems.

Set before the research began.

1. E1 Satya Nadella - Wikipedia Wikipedia

   “Nadella worked at Sun Microsystems as a member of its technology staff before joining Microsoft in 1992.”

2. E2 Satya Nadella - From Hyderabad to CEO of Microsoft - The Inner Detail The Inner Detail · 6 July 2021

   “After completing his M.S. degree, Satya Nadella began his career as a software developer at Sun Microsystems in 1990.”

3. E3 Satya Nadella Education [Deep Analysis] DigitalDefynd · 13 June 2026

   “After completing his graduate studies, Nadella worked at Sun Microsystems as a member of the technology staff between 1990 and 1992.”

4. E4 Satya Nadella ITLibra History

   “He was a member of the technical staff at Sun Microsystems before joining Microsoft in 1992.”

E1 and E4 are independent profiles. Both say Nadella was a member of the technology or technical staff at Sun Microsystems before he joined Microsoft in 1992, which is a technical role. E2 and E3 date the start of his time at Sun to 1990, and E3 gives his time there as 1990 to 1992. Taken together, the sources show both the developer role and the 1990 join year, so the claim meets the criteria for true.