Scientist – Solvent & Process Chemistry (F/M/D)

Berlin

Full-time

Permanent employee

Your mission

We are seeking a skilled and innovative scientist to develop process liquids for theion’s proprietary sulfur crystal growth technology. The ideal candidate will have a strong background in organic chemistry and hands-on experience in the synthesis and purification of ionic liquids and solvents. This role focuses on designing, synthesizing, and optimizing complex solvent systems and ionic liquids with tailored properties for sulfur processing. As an integral part of the team, you will contribute to scaling these materials from laboratory development to pilot production and advancing theion’s next-generation Li-S battery technology.

Your tasks

Develop and deliver binary, ternary, quaternary, and other complex solvent compositions
Synthesize and purify high-dielectric-constant solvents with low-viscosity properties
Synthesize and purify high-dielectric-constant ionic liquids with low-viscosity properties
Design organic solvents to achieve specific sulfur solubility and surface tension
Optimize the chemical and thermal stability of ionic liquids and solvents
Design ionic liquids and solvents for compatibility under electric fields
Functionalize small organic molecules
Scale up ionic liquid and solvent production to 5L for pilot production
Conduct structured experiments and independently analyze, interpret, and present results
Collaborate closely with material scientists, chemists, electrochemists, and process engineers to advance Li-S battery development

Your profile

Absolute-must-haves:

PhD in Chemistry, Organic Chemistry, Materials Science, Electrochemistry or a closely related discipline
Minimum 2 years of hands-on experience in the synthesis of ionic liquids or solvents
Willingness to relocate to Berlin
Fluent in speaking English – our company language is English, incl. all internal communication and meetings.