Senior Process Engineer

** Join the Climate-Tech Revolution at Concrete4Change (C4C)**
Position: Senior Process Engineer (Job title flexible) Location: Nottingham, UK Salary: £60,000–£80,000 Type: Permanent, Full-Time Start Date: Immediate Visa Sponsorship: Available
About Us Concrete4Change (C4C) is a pioneering R&D company developing breakthrough technology to permanently mineralise CO₂ in concrete. Our additive production process was recently scaled up 10×, and we are now focused on creating a fully licensable commercial flowsheet—demonstrated with “steel on the ground.” We are finalising the construction of a mini full-flowsheet pilot plant at our Nottingham facility. This plant will operate over the next six months before integrating with real flue gas. The operational data and lab results will feed into our process design documentation and models, supporting the design of a 100× commercial demonstrator. C4C has won multiple prestigious awards, including the UN Climate Challenge Cup at COP26, and is partly owned by Siam Cement Group and Goldbeck GmbH. We collaborate with the University of Nottingham, Leeds, Sheffield, Warwick, and leading manufacturers such as Holcim, CRH, Marshalls, and Ibstock. Learn more about us: • Technologies & Vacancies • Day in the C4C Labs • Employee Perspectives • Founder's Story
The Opportunity We are seeking a Senior Process Engineer to lead our scale-up journey—from lab pilot to commercial demonstration. Reporting to the CTO, you will play a key role in process modelling, pilot operation, scale-up design, equipment selection, and coordination with EPCs, subcontractors, and internal teams. This is an exciting opportunity to apply multidisciplinary engineering skills to a truly transformative climate technology.
Key Responsibilities Process Design & Scale-up

• Collaborate with the CTO to define, optimise, and execute scale-up plans
• Develop process models and design documents, including:
• Heat and mass balances
• Equipment lists and sizing
• Utility and waste generation profiles
• PFDs, process descriptions, preliminary plot plans
• Techno-economic evaluations
• Identify opportunities for process improvements and integration of chemical recovery steps

Pilot & Commercial Plant Operations

• Support commissioning, operation, and troubleshooting of the mini-plant
• Ensure learnings from the pilot feed into the commercial plant design
• Manage experimental runs and ensure high-quality data generation
• Oversee maintenance, upgrades, and modifications of pilot systems

Project Management & Leadership

• Forecast engineering workload and resource needs
• Lead or support cross-functional teams including subcontractors and EPCs
• Ensure safety, quality, and documentation standards are met
• Project manage engineering tasks, time, and budgets

Cross-Disciplinary Collaboration

• Work with chemists, mechanical engineers, process control engineers, and plant operators
• Provide clear communication and lead by example
• Support operational safety through systems like permit-to-work and equipment isolation
• Influence technical direction, team structure, and scale-up strategy

Person Specification Essential

• 10+ years’ experience in process design, commissioning, and scale-up, ideally involving solids handling or mineral processing
• Strong grasp of unit operations and chemical/physical transformations
• Proven ability to manage EPCs, subcontractors, and pilot plant construction
• Experience delivering engineering packages from concept to deployment
• Ability to analyse plant data and implement continuous improvement
• Strong project management and leadership skills

Desirable

• Experience with Python, Excel, Aspen, Thermoflex, or similar tools
• Exposure to techno-economic analysis and cost modelling
• Knowledge of PLCs, SCADA, electrical systems, and process control
• Fluent in more than one language
• Forklift licence (or willingness to obtain one)
• Experience in carbon capture and mineralisation processes
• Background in concrete or cement chemistry
• Educated to at least BEng/BSc in Process or Chemical Engineering
• Willingness to travel and potentially relocate (future plant expected in UK or EU)

Benefits

• Competitive salary (£60,000–£80,000)
• Bonus scheme tied to key milestones
• Private health insurance & pension plan
• Generous holiday entitlement
• Free food and coffee at the office
• Equity participation opportunities
• Visa sponsorship available
• Work alongside world-class partners and technology leaders
• Full exposure to a scale-up journey from pilot to full commercialisation
• Unrivalled long-term career progression in climate tech