Jaakko Eskola, the new Wartsila president and chief executive, has barely been in the job six months but already has been forced to take some tough decisions.

In March, the marine engine-building company’s shares fell 3% after Eskola revealed “deviations” in fuel consumption estimates.

The following month, he reported that first-quarter operating profits had slumped by 16% and that the business would have to shed 550 of its jobs.

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