Scientist – Solvent & Process Chemistry

Develop process liquids for theion's proprietary sulfur crystal growth technology. This role focuses on designing, synthesizing, and optimizing complex solvent systems and ionic liquids with tailored properties for sulfur processing, scaling these materials from laboratory development to pilot production and advancing theion's next-generation Li-S battery technology.

What you'll do

• 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
• 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

What you'll need

• 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
• Knowledge of analytical and physicochemical characterization methods relevant to liquid systems
• Willingness to relocate to Berlin
• Fluent in speaking English – English is the company language for all internal communication and meetings

Nice to have

• Minimum 2 years of hands-on experience in multi-step organic synthesis of ionic liquids and/or solvents
• Understanding of molecular interactions of solvents and/or ionic liquids in high-voltage electric fields and DEP
• Experience in protection and deprotection chemistry