Process Engineer - Senior / Principal (Process Engineering)

Location: Chorley, United Kingdom; hybrid and flexible working arrangements; travel to client and project sites as required.

Company

Actemium Design is a national engineering design company within VINCI Energies, delivering mechanical, EC&I, process engineering, design, project management, and project control for regulated industries.

What you will do

• Lead or support high-value process engineering design solutions from early concept through detailed engineering.
• Produce and review PFDs, P&IDs, heat and mass balances, process calculations, technical specifications, datasheets, proposals, procurement specifications, and client reports.
• Collaborate with mechanical, EC&I, SHEQ, and project management teams to deliver integrated, compliant, safe, and cost-effective solutions.
• Perform technical calculations, modelling, and simulations to verify performance and stakeholder requirements.
• Participate in HAZOPs, LOPA studies, safety reviews, constructability reviews, and risk management activities.
• Mentor less experienced engineers and support a knowledgeable, high-performing team.

Requirements

• Degree-level qualification or equivalent relevant experience in chemical engineering, process engineering, or a related discipline.
• Substantial process design and engineering delivery experience, ideally in regulated industries including nuclear, chemical, energy, oil and gas, or heavy/process industry.
• Proficiency in process engineering software and tools such as Aspen HYSYS, AutoCAD, and process simulation packages.
• Strong understanding of UK and international process engineering standards, legislation, and best practice.
• Proven ability to produce, check, and validate PFDs, P&IDs, datasheets, and calculations.
• Strong communication skills and the ability to explain technical concepts to colleagues, clients, and stakeholders from varied backgrounds.
• Organised and analytical approach with a focus on quality, risk management, and continuous improvement.
• Willingness and ability to travel to client and project sites as required.
• Some positions may be subject to UK national security clearance restrictions based on place of birth, nationality, current or former citizenship, and residency history.

Culture & Benefits

• Full-time employment, 37.5 hours per week, with hybrid and flexible working options.
• Competitive salary, enhanced pension contributions, annual bonus, and Health Shield plan.
• 26 days of holiday plus bank holidays, EV car scheme, company share scheme subject to qualifying periods, and death-in-service insurance.
• Bespoke progression and career development supported by VINCI Energies industry leaders.
• Inclusive, supportive, and knowledgeable team environment.