Polymer Chemist (f/m/d) Permanent employee | Full-time | A s from now | Leipzig Your mission Develop polymer formulations and polymerisation strategies for aevoloop’s novel, polyester-based plastics. Defi ne the desired properties of the target polymer and develop a R&D plan to achieve them. Design and optimize synthesis routes and scale-up to the 100+ kilogram range, while assessing hazards and costs. Lead and interpret analytical workstreams (DSC, TGA, NMR, SEC, rheology, MFI, viscosity, TAN, mechanical testing, weathering/hydrolytic stability) to defi ne the ideal polymer formulation and achieve the desired mechanical and processing properties. Work closely together with process engineers to translate R&D fi ndings into robust, scalable processes. Develop compounds based on our polymer technology in close collaboration with external partners to fi ne-tune the material properties and enable manifold applications. Develop sustainable plastic products for a wide range of applications, including extrusion, injection moulding and fi lm blowing to prepare semi-fi nished product prototypes for 3D printing fi laments, fi bers or packaging. Identify and validate new applications in line with our go-to-market strategy, especially within the fi elds of packaging, 3D printing, textiles and composites. Prepare technical reports and patent applications. Ensure that SHEQ and sustainability standards are upheld across all laboratory, pilot and production activities, including knowledge of REACH/CLP, LCA, recycling and end-of-life strategies. Your profi le Advanced expertise in polymer chemistry, particularly polyester and polyamide, and at least two years' industrial experience. Ideally, you have a PhD in polymer chemistry, chemistry, or a related fi eld. Experience with biodegradable polymers is advantageous. You have hands-on experience in polycondensation (batch and continuous) and polymer processing (compounding, extrusion, injection moulding, fi lm blowing, 3D printing and fi bre spinning). You have deep familiarity with analytical and characterisation methods: DSC, TGA, NMR, SEC, rheology, mechanical testing (tensile testing, impact strength, HDT), TAN and weathering/hydrolytic stability assessments. You have proven skills in agile project management, CRO/supplier coordination and patent screening and fi ling. You are well-versed in regulatory topics such as REACH/CLP, life cycle assessment (LCA) and recycling and end-of-life strategies. Excellent communication skills in English (written and spoken); German language skills are advantageous. You bring a hands-on mindset, structure your work efficiently, and collaborate seamlessly across disciplines – even under the dynamics of a fast-paced start-up environment. Why us? Pioneers in Next-Gen-Plastics – help redesign plastics for a truly circular economy. Mission & Values – curiosity, transparency and responsibility guide us daily. Startup Mentality – fl at 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 – Hansefi t 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. About us We are aevoloop: A fast-scaling deep-tech startup pioneering Next-Gen-Plastics. Contrary to common belief, plastics remain indispensable where no alternative exists, from critical medical devices to protective gear. That’s why we redesign polymers at the molecular level, uniting the best of the old — light-weight, robust, cost-effective — with the benefi ts of the new: sustainably sourced, 100 % circular and biodegradable. Our mission is clear: P lastics are vital for a liveable future, so we develop next-generation materials that enable a truly circular economy. As we achieve new milestones and drive innovation, we continuously expand our team and expertise — giving you the chance to grow your career alongside our impact. Our work is guided by fi ve values: Pioneering, Conscientious, Disruptive, Transparent and Contributive. These drive us to unite the rigour of responsible research with playful innovation and to act as a trusted catalyst for sustainable material solutions. Co-founder Dr. Manuel Häußler and CTO Dr. Timo Witt in the lab | Bild: SPRIND GmbH We use plastic waste as feedstock, which is converted into high-quality platform chemicals in a low-energy process. | Bild: SPRIND GmbH Application prototypes made from aevoloops “Planet-Proof Plastics” with built-in predetermined breaking points | Bild: SPRIND GmbH You want to fi nd out more? Get our latest news on LinkedIn or our News Blog YouTube | Deutscher Studienpreis 2022: Kunststoff-Recycling ohne Rückstände (Manuel Häußler), (German) YouTube | Recording: Forscher fragen: Die Plastikwende (2024) mit Manuel Häußler (German) Podcast | Interview with our Founder & CSO Manuel Häußler on the SPRIN-D Podcast (German) Join us on our journey to close the loop on plastics and drive the circular economy forward! Do you have a passion for sustainable innovation and science? Ready to make an impact? Then this is your chance! Apply for this job If the button link doesn't work, please copy this link instead: Marina Eckert People & Culture Managerin If you have any questions about working at aevoloop or our vacancies, contact us by email at join@aevoloop.com aevoloop GmbH Markt 9 04109 Leipzig Geschäftsführer: Philipp Kessler, Manuel Häußler Sitz der Gesellschaft: Leipzig HRB 43075, Amtsgericht Leipzig