Keller has won a £28m deal on an Algerian combined cycle power plant.
The geotechnical firm is a subcontractor to Sonelgaz, the state-owned utility firm, on the construction of a 1,450 MW power plant in Mostaganem in the north-west of Algeria.
Keller will build a working platform of around 970,000 sq ft and install 260,000 m of stone columns to mitigate liquefaction, as well as 47,500 m of bored piles as foundation support.
The contractor expects to complete its work in the first quarter of 2019.
It is Keller’s largest contract to date in Algeria, where it has been working for 12 years.
In February Keller reported a 16 per cent increase in global revenue for 2017 to £2.07bn, with profit before tax rising almost 50 per cent to £110m.
Turnover in its Europe, Middle East and Africa division grew 33 per cent from £552.6m in 2016 to £737.2m in 2017.
However, the company said it was braced for a “challenging” year in its UK operations after revenue in the region fell 5.4 per cent to £61.2m for 2017.