The construction group said the management reshuffle was designed to reduce duplication and simplify its management structure as part of the on-going cost-saving programme.
Construction and Infrastructure Services director Nigel Brook and development and property services director Nigel Turner leave the business with immediate effect.
Claudio Veritiero, currently strategy and corporate development director, has been promoted to the new role of chief operating officer with immediate effect.
Veritiero, aged 44, joined Kier in 2011 as the managing director of the services division.
Prior to joining Kier, he was the chief operating officer of Speedy Hire, having spent his early career with the investment banking business of Rothschild.
Philip Cox, chairman of Kier, said: “Claudio has a strong record of managing operational performance and has acquired an in-depth knowledge of Kier, and its markets, during his time with the business. I very much look forward to working with Claudio in his new role.”
He added that Nigel Brook and Nigel Turner had each made a significant contribution to the business and the Board.
“Under Nigel Brook’s leadership, our construction and infrastructure services division has continued to perform well in a challenging market environment and Nigel Turner has, in particular, played a significant role in the property business’ growth.
“I would like to thank each of them for their hard work and contributions and we wish them well for the future.”