Plastics Processing Engineer​/Technologist; f​/m​/d) Compounding

As part of our R&D team, you will be the technical backbone of our polymer processing team, transforming our novel, sustainable polymers into high-performance compounds ready for scale-up.

• Compounding & Formulation: Develop and optimize polymer formulations, focusing on additives, master batches and compounding strategies tailored to our new materials.
• Equipment Operation: Hands-on setup, operation, and troubleshooting of polymer processing equipment, including lab kneaders, single/twin-screw extruders, injection moulding machines and film blowing lines.
• Application Development: Drive material development across key application fields (e.g. injection moulding, film processing, fibre spinning or monofilaments for 3D printing). You don't need to be a deep expert in all of these fields, but you will help define key processing parameters and guidelines for target applications.
• Data-Driven R&D: Analyze and interpret mechanical, thermal and rheological properties (MFI, capillary rheometry, DSC, TAN/acid value, tensile testing) to derive robust structure-property relationships.

• Education: Degree (B.Sc./M.Sc.) in Plastics Engineering, Polymer Science, Materials Science or a related field. Alternatively, completed vocational training as a Plastics Technologist or Technician with extensive relevant industry experience.
• Experience: Proven senior-level of professional experience in an industrial laboratory, pilot plant, or production environment.
• Technical Expertise: Deep, hands-on experience in polymer processing (compounding, extrusion, injection moulding) and formulating master batches/additives.
• Analytical Mindset: Confident handling of thermal and rheological analysis methods.
• Working Style: Precise, well-organized, and reliable even in the dynamic environment of a growing startup. You bring a strong hands-on mentality and structure your work efficiently.
• Language: Comfortable communicating in English in day-to-day operations. Technical competence matters more to us than perfect grammar.

• Pioneers in Next-Gen-Plastics – help redesign plastics for a truly circular economy.
• Mission & Values – curiosity, transparency and responsibility guide us daily.
• Startup Mentality – flat hierarchies, agile work and regular workshops.
• Fast Growth – steep learning curves, regular growth talks and plenty of room to scale your role with the company.
• Well-being Perks – Hansefit membership and fresh fruit boost your overall health and well-being.
• Team Spirit – interdisciplinary crew that challenges norms, enjoys regular team events and drives real innovation.
• Leipzig Hub – thrive in an emerging tech hotspot.
• Code of Conduct – integrity, fairness and inclusivity are non-negotiable.

If you have any questions about working at aevoloop or our vacancies, contact us by mail at