Senior Design Engineer

Job DescriptionJOB TITLE: Senior Design Engineer Location: Peterborough Salary: £60,000 + Private Health & Dental Job Type: Permanent, Full-time Sector: Renewable Energy - Biomethane / Process Engineering ________________________________________ About the Company Our client is a renewable energy innovator leading the development of next-generation biomethane plants that turn agricultural waste into clean, carbon-negative energy. Their goal is bold but achievable... to produce 1TWh of renewable natural gas by 2030. From concept to commissioning, they design, build and operate their own facilities using proprietary technology that is redefining how green gas is produced. If you want to use your engineering expertise to make a measurable environmental impact - this is where you'll do it. ________________________________________ About the Role As a Senior Design Engineer, you'll play a pivotal part in scaling the company's biomethane platform. You'll take technical ownership of process and mechanical design for anaerobic digestion (AD) plants, managing deliverables from feasibility through to commissioning and handover. You'll work as part of a multidisciplinary team covering mechanical, process, electrical and control disciplines, contributing to the full lifecycle of projects that deliver clean energy to the grid. You will be operating within a high performing team that is striving forward with the same goals of quality delivered projects, high customer satisfaction, environmental sustainability and personal growth. ________________________________________ The key requirements for this Senior Design Engineer role are: - Lead design activities for anaerobic digestion and biomethane plants from feasibility to completion - Prepare and manage key deliverables including process flow diagrams, P&IDs, plant control philosophy (FDS), cause-and-effect charts and datasheets - Produce detailed technical specifications for all major packages on AD projects - Support technical reviews for balance of plant, mechanical and electrical systems - Provide technical input across procurement, commissioning and performance testing - Actively participate in HAZID, HAZOP and SIL studies - Maintain and update design and CDM risk registers - Liaise with suppliers, subcontractors and on-site construction teams - Review 3D models and drawings, providing feedback on layout and maintainability - Compile final technical documentation and O&M manuals for handover ________________________________________ Experience required for this Senior Design Engineer role are: - Bachelor's or Master's degree in Mechanical, Chemical, Process or related engineering discipline - 5-10 years' experience in anaerobic digestion, biogas, or biomethane plant design - Strong understanding of process, mechanical and control interfaces within AD systems - Familiarity with biomethane regulations, CO₂ capture and DSEAR compliance - Hands-on experience using AutoCAD and 3D modelling software - Working knowledge of mechanical and electrical engineering standards for process plants - Excellent communication, organisation and problem-solving skills - Full UK driving licence and willingness to travel for site and supplier visits ________________________________________ Desirable knowledge, skills and experience for this Senior Design Engineer role are: - Experience with CFD modelling - Knowledge of instrumentation and control systems integration - Familiarity with Microsoft Project and QA documentation (FAT/SAT) ________________________________________ Package and Benefits of the Senior Design Engineer role: - Private healthcare and dental cover - Pension scheme - 25 days' annual leave plus bank holidays - Hybrid working with flexibility between home and HQ - Opportunity to work on pioneering renewable energy projects - Strong long-term career development in a growing clean-energy business ________________________________________