We are delighted to welcome Guillaume Penaud to Gall Zeidler Consultants as our new Senior Tunnel Engineer.

Guillaume is a geotechnical and tunnelling engineer specializing in urban underground works, with experience spanning geotechnical design, field observations, construction supervision, and oversight for both TBM and conventional tunneling (NATM/SEM). He has also worked extensively with instrumentation and monitoring systems, results analysis, and asset protection planning.

His project experience includes major infrastructure works such as Grand Paris Express, EOLE in Paris, and the Copenhagen Metro. We’re excited to have Guillaume join the GZ team and look forward to the expertise and perspective he brings to our projects.

Welcome aboard, Guillaume!