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JPT Team

The People Behind JPT

JPT brings together scientific expertise, technical precision, and a customer-focused mindset to help researchers and partners move peptide projects forward with confidence.

A Team Built on Scientific Expertise

Every peptide project at JPT is supported by people who understand both the science and the practical demands behind it. 

Across our Berlin headquarters and U.S. office, more than 100 team members contribute expertise in chemistry, analytics, purification, quality, production, business development, project management, and customer support. 

With a strong scientific team, including many PhD-level specialists, we work closely with researchers worldwide to provide reliable guidance, precise execution, and dependable peptide solutions from start to finish.

>100 Team Members
Our team members combine scientific, technical, and customer-focused expertise
Equality in
Practice
A balanced team culture with 48% women and 52% men across JPT’s workforce
Diversity in
Action
A multicultural team bringing global perspectives and speaking more than 10 languages
Experience & Stability
Our colleagues stay with JPT for an average of 7.5 years, bringing continuity and long-term expertise
Leadership

Managing Directors

Aurélien Claeyssen, Managing Director of JPT

Aurélien Claeyssen

Managing Director

holds a Masters degree in Biotechnology and Management. He co-founded Smartox in 2013, a peptide-based drug discovery company, and SB-PEPTIDE in 2016, a peptide CDMO company. He served as Chief Commercial Officer and Board Member.

Dr. Sierk Poetting, Managing Director of JPT

Dr. Sierk Poetting

Managing Director

holds a Master of Science in Optical Sciences and a Ph.D. in Physics. From 2012 to August 2014, he served as Vice President and CFO of Sandoz North America at Novartis, later becoming CFO and COO at BioNTech SE, leading key financial and operational functions.

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