Norbert Sieber became head of tax of Bilfinger, the engineering and services group, on May 1, succeeding Gilles Roux, who has stepped down after eight years to become chief operating officer of Bilfinger International Facility Management.
Norbert Sieber became head of tax of Bilfinger, the engineering and services group, on May 1, succeeding Gilles Roux, who has stepped down after eight years to become chief operating officer of Bilfinger International Facility Management.
