Founder Associate internship

Who Are We? Syntetica is an early-stage chemical startup on a mission to decarbonize the textile industry through textile-to-textile recycling — starting with nylon. Today, most synthetic textiles are made from crude oil, and less than 1% are recycled back into new fibers. We're here to change that. At Syntetica, we’ve developed a patented depolymerization process that breaks down nylon-rich textile waste into virgin-equivalent nylon monomers — while separating materials like elastane, polyester, and cotton for further recycling. Backed by Entrepreneur First, we’ve raised €4.2M from leading investors including EQT Ventures , the family offices of Peugeot and Etam , as well as high-profile athletes like Paul-Henri Mathieu and Jean-Éric Vergne . We’ve already forged key partnerships with major textile players like Victoria’s Secret and ETAM — as well as leading fast fashion and sportswear brands — and have assembled a core team of 12 experts . If you want to help bring truly circular materials to global scale — and solve one of the textile industry’s biggest sustainability challenges — come build with us. Syntetica raises €4.2M to close the loop in nylon recycling Victoria’s Secret, Etam Nylon Recycling Specialist Syntetica Raises 4.2 Million Euros Mission and Key Responsibilities As a Founder’s Associate Intern, you will be the right hand to our CEO and a key player in driving strategic initiatives across production, commercial development, fundraising, and project management. You will also work closely with Operations and R&D teams to accelerate Syntetica’s growth in green chemistry. Your key responsibilities will include: Commercial & Fundraising support Participate in preparing investor materials (pitch decks, updates, data rooms) Commercial development incl. new customer acquisition and monthly touchpoints with the world’s biggest brands Support market research and business development initiatives Product & Project Delivery Help coordinate timelines and deliverables with internal teams and external partners Track and support the execution of action items related to production deliverables Assist in liaising with suppliers, technicians, and manufacturing partners Help maintain and enforce quality control processes R&D operational support Support the planning of R&D goals, resources, and equipment allocation Participate in performance tracking and reporting of R&D progress Help standardise workflows and contribute to internal documentation and training Required background and skills Final-year student from a top engineering school (gap year or end-of-studies internship) Hands-on, structured, and rigorous with excellent analytical skills Comfortable with project management tools (e.g. Notion, Excel/Sheets) First experience in a startup, consulting, VC, or similar environment is a plus Full professional proficiency in English; French is a plus Excellent interpersonal and communication skills You are: Highly motivated, proactive and a quick learner Able to manage multiple workstreams in a fast-paced environment Excited by building solutions with impact and ready to work hard to build something enormous Recruitment Process 30-min introductory call with People Lead Case study/Practical exercise with Marco Final conversation with Florian, COO Offer! Interesting infos Location: Paris and Villejuif Start date: July or September 2025 Duration: 6 months Contract type: Full-time internship Benefits : 50% of transport costs covered and 50% of health insurance covered (as per legal requirements), 70% of a Gymlib subscription covered by Syntetica

Location: Paris, FR

Posted Date: 6/15/2025