About

Pierre Jereczek

Senior operator. Former COO and operations director. Advisory and enforcement for companies fixing what fast growth broke.

I’ve spent more than twenty years running operations across EMEA, APAC and the US, with P&L ownership on international portfolios. Not advising from the side. Running.

For a PE-backed industrial group I ran a global delivery portfolio across seven countries, in pharma, data center and industrial projects, and built the PMO, the playbooks and the reporting rhythm that let the owner see margin and risk per project. I inherited a €27M pharma project that was bleeding cash and handed it back cash-positive in ten months. I held a senior program and change role on a €400M site transformation. I ran claims and recovery on a nuclear new-build site, where paper discipline is not optional. As interim ops director, I stabilised a data center services firm through a growth spike and handed over a calmer company than I found.

I’ve also sat on the owner’s side of the table. Early on I ran my own advisory practice for more than seventy-five owner-led businesses, and I founded, built and sold a company of my own. The conversation with a family that built something is one I understand from the inside.

I take two mandates at a time. Based in Slovakia, working across France and Central Europe. Remote-first with structured on-site presence.

Where I’ve done this before →

Pierre Jereczek, founder of Operionis
Pierre Jereczek, Operionis

Credentials

Education

  • Master’s, Law, Economics and Management. University of Paris-Sud XI.
  • Master’s, Management Control, Accounting and Auditing. INTEC CNAM.
  • Bachelor’s, Business Economics and Management. University of Paris-Sud XI.

Certifications

  • Certification in Project Management. École Centrale.
  • Certification in Business Law. Panthéon-Sorbonne.
  • Certification in International Organization Management. University of Geneva.
  • Degree in Purchasing. Université de Lorraine.

Languages: French (native), English (fluent), Slovak (intermediate).

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