Chemical Process Engineer (Scale-up / Pilot Plant) - Sustainable Materials / Chemical Recycling Location: Bristol (on-site) Salary: £45,000-£52,000 (depending on experience) Type: Permanent | Full-time (40 hrs/week) | On-site 5 days/week A high-growth Bristol-based cleantech is hiring a Chemical Process Engineer to support the scale-up and industrialisation of a novel chemical recycling technology for advanced materials and composites (applications across sectors such as aerospace/defence, automotive and renewable energy). This is a hands-on scale-up role, bridging lab/bench work and pilot plant delivery, with strong exposure to process modelling, pilot plant operations, and continuous improvement. Responsibilities Support scale-up from laboratory/bench scale to pilot scale, including technology transfer activities Build/maintain models for energy, environmental and techno-economic factors (e.g., Aspen / HYSYS, Excel) Support safe build, commissioning and operation of pilot-scale processes/equipment Collect and analyse process data; define KPIs; drive improvements to throughput, efficiency and cost Apply structured problem-solving (e.g., 5 Whys, FMEA, Kaizen) Support equipment maintenance/repair activities and calibration scheduling for safety-critical components Liaise with suppliers, procure equipment, and coordinate installation/project engineers as needed Produce SOPs, One Point Lessons and process documenta...