[12] After graduating with his Ph.D., Devgan's first job was working for IBM Research in Yorktown Heights, New York[14] starting in 1994.

[2] During his seven years at Magma,[16] he "initiated and brought to market multiple new products in the areas of circuit simulation, analog mixed-signal design, physical verification, library characterisation and 3D extraction among others.

The role gave him oversight of Cadence’s EDA products, as well as corporate strategy, marketing and business development.

[19] By 2023, Devgan had been quoted by publications such as The New York Times on matters relating to software and chip manufacturing.

[22] He appeared again on CNBC in May 2023 on Mad Money with Jim Cramer, again to discuss the semiconductor industry and Cadence.

[23] In September 2023, he was quoted by Bloomberg stating the US should invest more in semiconductor packaging to ensure it was leading in areas such as artificial intelligence.

[27] Announced in November 2006,[4] in 2007 he was elected an IEEE Fellow for "contributions to electrical analysis, and simulation of integrated circuits.