Process Engineer

Syntetica is a rapidly growing 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. To date, we’ve raised >€7M from leading investors including EQT Ventures, the family offices of Peugeot and Etam, BPI France and Entrepreneur First. We’ve already forged key partnerships with major textile players like Victoria’s Secret and ETAM — as well as leading fast fashion, sportswear and automotive brands — and have assembled a core team of 15 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. Press articles: Syntetica raises €4.2M to close the loop in nylon recycling WHO YOU ARE You are a hands‑on, team‑oriented process engineer with an aptitude for learning new things and a desire to have a positive impact towards the green transition. You will directly shape the design of our demonstration and industrial plants by working at the intersection of R&D and engineering to model, simulate, and optimize our process for both technical performance with economic viability. You have a versatile cooperative skill set, mental flexibility, and a passion for dynamic problem solving. RESPONSIBILITIES Own the engineering of purification and separation sections from R&D and supplier trials through pilot design, installation, commissioning, and performance monitoring, in close collaboration with the R&D team and our engineering firm Build and maintain process simulations and core engineering documentation (PFDs, P&IDs, equipment datasheets, utilities balances) to support technical decisions for both the pilot and the future demo plant Work hands‑on with equipment suppliers and external engineering partners throughout FEED, detailed design, procurement, FAT/SAT, installation, and ramp‑up to ensure technical alignment and expected performance Contribute to safety, operability, and performance reviews (HAZID/HAZOP, bottleneck analyses, optimization plans) and drive the implementation of corrective and improvement actions Structure the demonstration plant design basis by consolidating validated pilot data and operational learnings into robust industrial assumptions Invest in our company values and vision and champion them as we grow BACKGROUND & SKILLS Bachelor’s in Chemical Engineering, Process Engineering, or a closely related field 5+ years of hands‑on experience in chemical process development and scale‑up, including direct involvement in pilot or industrial plant design Proven track record delivering data‑driven process design packages (PFDs, P&IDs, equipment specifications) for multi‑step chemical processes Strong communication skills and demonstrated collaboration abilities in English; French is a plus Experience with purification operations and/or solid/liquid separation processes would be highly valued Expertise in process simulation and modeling using tools such as Aspen Plus (or equivalent), with deep knowledge of thermodynamics and reaction engineering Well‑organized and practical approach to problem solving, driven by curiosity and attention to detail Comfortable with ambiguity; ability to figure out what needs to be done—and then do it At Syntetica, we are a dynamic group of individuals, united by a common mission, who believe our diversity is key to our success. We are committed to maintaining an inclusive work environment, dedicated to a policy of non‑discrimination on any basis. Recruitment Process Screening call with Ash (CTO) – 30 min Interview with Alice (Data Lead) and Jaume (Lead Process Engineer) – 45 mins Interview with Matthew (Polymer Scientist) and Albert (R&D Engineer) – 45 mins Interview with Ash (CTO) and coffee with the team – 1 hour Values & culture fit with Marco (CEO) – 45 min #J-18808-Ljbffr