The managing director of generator manufacturer FG Wilson is leaving his role in Co Antrim for a senior executive position in its parent company.
Caterpillar announced that 51-year-old Mark Sweeney will become vice-president for the Europe and South American operations of the global firm in January.
Mr Sweeney is currently operations director for Caterpillar's electric power division, which includes FG Wilson in Larne.
He is taking over as Europe and South American operations vice-president from Chris Schena. A spokesman for the company said the two will focus on handing over duties in the first six months of next year.
Mr Sweeney's old role as operations director for the electric power division will have to be filled.
Rich Lavin, Caterpillar group president with responsibility for construction industries and growth markets, said: "Mark was managing FG Wilson's research and development group when Caterpillar acquired the company in the mid-1990s, and we immediately recognised his technical expertise and leadership skills.
"With his engineering, marketing and operations background, and based on his outstanding leadership within FG Wilson and the electric power division, Mark is an ideal fit for this new role."
Mr Sweeney, from Co Fermanagh, started his working life with marine engine company Mercury Marine in Wisconsin. He returned to Northern Ireland and joined FG Wilson in 1994.