Postdoc in Process Chemistry and Digital Synthesis

We are currently looking for a 12-months (with the possibility to extend the contract to 24-months) Postdoctoral Fellowship contract in our Process Technology department in Münchwilen. The role sits at the interface of chemistry and digital innovation, focused on designing and evaluating human-in-the-loop methodologies that combine generative chemistry AI with expert synthetic knowledge to accelerate synthesis route scouting. You will collaborate across teams, benchmarking digital synthesis tools and identifying the most promising directions for adoption across Syngenta's synthesis programs. You will be given the opportunity to develop new skills while working at the cutting edge of chemistry, data science and AI.

Your responsibilities: 

• Design and execute structured evaluations of generative chemistry AI tools combined with expert chemical judgment 

• Develop and document reusable benchmarks based on internal route catalogs and external literature datasets 

• Investigate multiple methodological approaches for AI-assisted synthesis route improvement 

• Integrate digital synthesis tools into live route scouting activities 

• Conduct literature reviews to identify and prioritize promising directions in generative chemistry 

• Capture and communicate findings through internal reports, presentations and potential scientific publications 

• A PhD in digital chemistry, organic chemistry, cheminformatics, or a closely related field 

• Sound knowledge of synthetic organic chemistry and retrosynthetic analysis 

• Working knowledge of cheminformatics concepts: molecular representation (SMILES, InChI), reaction databases, retrosynthesis logic 

• Familiarity with generative chemistry or AI-assisted synthesis planning tools (e.g., AiZynthFinder, ASKCOS, IBM RXN, or similar) is a plus 

• Python proficiency covering cheminformatics (RDKit), data analysis (pandas), version control (Git) and unit testing 

• Ability to critically evaluate and benchmark AI-generated synthesis routes against expert knowledge 

• Comfortable working across chemical development and digital/data science teams 

• Fluent English with strong written and verbal communication skills 

WHAT WE OFFER

• Scientific and technical excellence at the intersection of chemistry and AI 

• Contribution to valuable and impactful work, in a stimulating environment  

• Work in interdisciplinary teams spanning Process Technology, Medicinal Chemistry, CAST and Digital/AI. An open and collaborative work atmosphere 

• Continuous professional development and high scientific standards as foundations of our culture 

• Access to internal route catalogs, digital synthesis platforms and experienced colleagues across chemistry and data science 

• A responsible position with adequate training and meaningful scientific challenges 

Interested? We are looking for your application! Along with your Cover Letter and CV please provide a Research Summary of 2–5 pages. 

Syngenta is an Equal Opportunity Employer and does not discriminate in recruitment, hiring, training, promotion or any other employment practices for reasons of race, color, religion, gender, national origin, age, sexual orientation, marital or veteran status, disability, or any other legally protected status.