Process Engineer

Job Description

You will work hands‑on with a live plant, combining process modelling, operational support and engineering judgement to optimise performance and improve system design.

As a multi‑skilled engineer within the site team, you will support operations, maintenance and safe systems of work, while helping turn a working plant into a repeatable system that delivers measurable climate impact at scale.

We are building systems that remove carbon from the atmosphere and turn waste into a stable, long‑term carbon store.

Royal Wootton Bassett is where these systems are proven, improved and prepared for deployment.

Your work will turn a working plant into a repeatable system that delivers measurable climate impact at scale.

• Plant operation, maintenance and optimisation
• Work directly on our Royal Wootton Bassett pyrolysis facility
• Monitor, troubleshoot and optimise plant performance across varying conditions
• Support day‑to‑day operations and maintenance activities alongside the site team
• Assist with fault finding, basic maintenance tasks and system interventions where required
• Adjust process parameters based on real‑time performance and test outputs
• Support commissioning, integration and testing of new systems and upgrades
• Conduct flue gas analysis and use outputs to inform process performance and optimisation
• Process modelling and system design
• Build and maintain process models using Aspen (mass and energy balance, system optimisation)
• Translate plant data into model improvements and design insights
• Support design and performance validation of new and existing pyrolysis systems
• Contribute to process design documentation, calculations and system specifications
• Lab testing and material analysis
• Conduct hands‑on testing (e.g. moisture content, carbon content using muffle furnace)
• Analyse feedstock and biochar outputs to understand system performance
• Use lab data to inform process improvements and modelling assumptions
• Engineering development and scale‑up
• Contribute to the design and development of new pyrolysis systems and projects
• Support technical reviews of technologies and external partners
• Participate in safety assessments (HAZOP, risk assessments) and change processes
• Data, monitoring and MRV support
• Support the design and validation of monitoring, reporting and verification (MRV) systems
• Ensure process data can be accurately captured, interpreted, and used
• Work closely with the carbon team to ensure outputs are technically robust
• Site systems, safety and team support
• Develop and maintain standard operating procedures (SOPs) and risk assessments (RAs)
• Support the development of safe systems of work and site documentation
• Contribute to training and upskilling of site personnel
• Ensure compliance with site procedures, permits and safety requirements

• Degree in Chemical Engineering or a related discipline
• Experience in process engineering within industrial, energy, waste or chemical environments
• Strong grounding in heat and mass balance and process behaviour
• Experience with process modelling tools (Aspen strongly preferred)
• Comfortable working hands‑on in a plant environment

• Experience with process safety (HAZOP, HAZID, risk assessments)
• Familiarity with CDM regulations and engineering project environments
• Exposure to control systems (PLC, HMI, DCS)
• Ability to interpret and work with process data and instrumentation
• Experience contributing to plant commissioning or modification

• Pyrolysis, thermal processes or energy‑from‑waste systems
• High‑temperature or solids‑handling processes
• CAD or engineering drawing review capability
• Lab testing, materials analysis or process validation work
• Chartered status or working towards it

The successful candidate will be required to complete pre‑employment screening to BS 7858:2019, or national equivalent. This covers: confirmation of identity, legal right to work, financial probity, criminal history, and associations with proscribed organisations.

It is the policy of Pure DC that all individuals have a responsibility for the security and protection of the company's information and IT resources over which they have control, according to their role.

Pure DC is an equal opportunities employer. We welcome applications from all qualified candidates regardless of background.