Our Team

“The secret of success
is constancy to purpose.”
[Benjamin Disraeli, 1804 to 1881]

Dr.-Ing. Mark Mainz (PMP®)

The company owner, Dr.-Ing. Mark Mainz (PMP®), has more than 20 years of professional experience as a civil engineer and project manager. His training includes various degrees starting with a diploma in Civil Engineering, a master’s degree in Geotechnical Engineering at the University of Wales, a business degree, a PhD in Engineering at the renowned RWTH Aachen University as well as an internationally recognized certificate as Project Management Professional (PMP®). He is registered with the Chamber of Engineers in North Rhine-Westphalia as a Consulting Engineer. In addition, Mr. Mainz has also completed advanced training in the field of mediation and is a Personal Coach certified by the Chamber of Commerce and Industry in Düsseldorf and member of the International Coaching Federation (ICF).

His career in engineering began with solving geotechnical problems in the engineering office Prof. Dieler und Partner. After completing his master’s degree, Dr. Mainz worked for the engineering consultancy Heitfeld & Schetelig GmbH in Aachen. During this time he dealt with various problems of engineering geology. From here, he went to ARCADIS, a large international engineering company, first as a specialist in hydraulic engineering and geotechnics, and later as head of department for general infrastructure planning projects. For the last six years before the company was founded, he gained extensive experience in the execution of large-scale projects and leadership (with up to 65 employees) at Drees & Sommer, a leading company in project management in the construction industry in Germany. His final position was Head of the Energy Branche within the company.

Jana Walkemeyer (B.A.)

Ms Jana Walkemeyer (B.A.) is a part-time project manager at the Mainz Consulting GmbH. She has a joint bachelor’s degree from the University of Applied Sciences in Saarbrücken (htw saar) and the Université de Lorraine in business administration and about 5 years of professional experience in project management and consulting.

Her professional career already began during her studies as an intern and then as a student employee at the company Drees & Sommer in Luxembourg. During this time Ms Walkemeyer has worked on various challenging construction projects and gained experience in project management.

After successfully completing her bachelor’s degree, Ms Walkemeyer continued her work at Drees & Sommer, first at the location in Hanover and then in Bremen, as a project manager. The change to the Mainz Consulting GmbH followed in July 2021. In the future, Ms Walkemeyer would like to further expand her knowledge, especially in the area of “Sustainability”, and therefore started the master’s programme “Sustainability Economics and Management” at the Carl von Ossietzky University in Oldenburg, one of the leading sustainability degree programmes in Germany.

Manar Kadib (M.Sc.)

Since May 2022, our team has been strengthened by Mr. Manar Kadib. He is a project manager (full-time) and studied Construction Operations and Economic Sciences at the University of Duisburg-Essen. Before that he graduated in Civil Engineering at the Al-Baath University in Homs (Syria). Before moving to Mainz Consulting GmbH, he had already gained his first professional experience in a specialist civil engineering company in 2020. His expertise lies in particular in Scheduling and Cost Contolling.