Renasens AB jobb

Role overview We're looking for a Process Engineer with a systematic approach to experimentation and the drive to turn lab results into real infrastructure, to join our core team. You'll own the development and iteration of our supercritical CO₂ recycling process, from defining operating conditions to commissioning equipment on-site in Borås. Working closely with our R&D engineers and external partners, you'll bring rigour to uncertainty and move fast without cutting corners. Your Mission Process Development Design and run scCO₂ and sub-critical fluid experiments; define operating conditions using phase equilibria and thermodynamic modelling Develop and iterate on the textile treatment process, tracking yield, fibre quality, and energy efficiency as key outputs Design structured experiments (DOE) to optimise process parameters; document results clearly and draw actionable conclusions Equipment & Operations Operate, commission, and maintain high-pressure equipment including pumps, vessels, and heat exchangers Diagnose and fix issues independently; if the rig needs fixing, you fix it Participate in the scale-up to pilot plant: equipment specification, P&ID review, process safety, and on-site commissioning Collaboration & Integration Work closely with R&D engineers and external partners to integrate process development with material characterization Communicate findings clearly and contribute to a team that moves fast and shares knowledge Required Master's or PhD in Chemical Engineering, Process Engineering, or a closely related field Hands on experience with supercritical or pressure fluid systems; you have physically operated a rig Solid understanding of phase equilibria and thermodynamics applied to scCO₂, pressurised gas or similar systems Comfortable with DOE methodology: you plan experiments systematically and know what to measure Experience commissioning or troubleshooting process equipment (pumps, valves, HEX, pressure vessels)