Company Profilere.solution is an innovative recycling start-up founded in 2023 as a spin-off from RWTH Aachen University. The start-up´s vision is to establish a circular value chain for polyester-containing textile waste. re.solution developed a water- and chemical-efficient recycling process that can handle polyester-containing textile waste, including textile-specific impurities. The core USP of the company is the electrochemical separation technology for the polyester monomers, which is ready to be scaled from demo scale to industrial production within the next year. We are currently building and commissioning a semi-industrial pilot plant and preparing for full industrial scale-up. To strengthen our now seven-person team, we are looking for motivated professionals who bring expertise in textile or process engineering, business development, and/or project management, who want to accelerate the shift toward a truly circular textile and chemical industry.Your role as Process Engineer – Adsorption (f/m/d):- Develop the adsorption unit operation for removing quality-critical contaminants—from lab scale to pilot scale.- Gain unique experience with the complex chemistry of by-products arising in textile depolymerization and become one of the leading experts in contaminant removal for chemical recycling.- Plan and execute test campaigns for process scale-up and independently design equipment and parts of our pilot plant.- Serve as the technical point of contact for selecting plant equipment and adsorbents during pilot plant engineering and construction.- Qualify and select suppliers for key components, procure plant hardware, and build strategic partnerships with vendors and research partners – an ideal chance to build an outstanding professional network.Your profile:- Degree in Process Engineering, Chemical Engineering, Chemistry, Biotechnology, Physics, or a related field. A PhD title will also be considered.- Expertise in developing and designing adsorption processes and knowledge of fundamentals and of common industrial adsorbents (activated carbon, zeolites, silica, ion-exchange resins, polymeric adsorbents, MOFs) is desired.- Proficient with characterization methods, such as UV/Vis, FTIR, porosimetry, titrations.- Ideally, hands-on experience planning or executing plant projects involving adsorption technology.- Hands-on mentality, structured working style, and enthusiasm for pioneering scale-up work.- Excellent English and German skills. (English is a must, German is a plus)What we offer:- High-impact mission: Join a team that is fundamentally transforming the textile and chemical industries.- Freedom to create: Flat hierarchies, short decision paths, genuine trust in your expertise.- Personal growth: Work at the cutting edge of technology.- Flexible work setup: Trust-based working hours, home-office options, modern labs & offices.- Financial: Participate in our VSOP equity program and share directly in the company’s success.- Benefits: Access to the start-up scene, team events, and training opportunities.Ready to engineer the future of textile recycling? We look forward to your application: Apply with your resume and a brief cover letter to hr@resolution.technology. re.solution promotes diversity and equal opportunity – we welcome applications from all genders, nationalities and backgrounds.