Job Description

Ready to shape complex piping systems and drive 3D Plant Design excellence?

Location: Chorley | Type: Full-time (37.5 hours/week) | Package: Competitive Salary + Share Scheme + EV Car Scheme + Health Shield + Pension + Bonus + Benefits | Hybrid / Flexible Working Arrangements

Actemium Design, part of VINCI Energies, is looking for skilled Mechanical Piping / Plant 3D Designers and Engineers, to join our high-performing design offices. If you thrive on the challenges of mechanical piping layout, plant 3D modelling, and multidisciplinary engineering for regulated industry projects, we want to hear from you.

Mechanical Piping / Plant 3D Design - Designer, Engineer, Senior Engineer, Principal Engineer

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Join our expert team and contribute to major UK projects in the industrial and energy sectors, spanning nuclear, process, and heavy industry. Our portfolio ranges from feasibility to detailed design and allows you to make a direct impact on the infrastructure of tomorrow. We offer rewarding roles to those with expertise in mechanical piping systems, plant layout, and advanced 3D CAD modelling--no matter your career stage.

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Main Responsibilities in Mechanical Piping and Plant 3D Engineering

Develop and produce high-quality piping and plant layout designs, including 3D models, detailed drawings, technical calculations, and design documentation. Utilise 3D Plant Design software (such as AutoCAD Plant 3D, Inventor, or PDMS/E3D) to create accurate, coordinated plant and piping arrangements. Collaborate with multidisciplinary teams (process, EC&I, structural, and project management) to deliver integrated engineering solutions. Interpret, apply, and ensure compliance with all relevant mechanical and piping standards, codes, and statutory regulations. Undertake and review pipe stress analysis, equipment interface checks, and constructability assessments. Participate in HAZOPs, design reviews, and risk assessments to develop safe, practical piping layouts and plant designs. Take part in site and plant surveys, liaise with suppliers and clients, and provide technical support through all project stages. Mentor and share expertise with junior designers and engineers, and help foster a culture of innovation and technical excellence.
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Essential Skills & Experience for Mechanical Piping / Plant 3D Design Roles

Qualification in mechanical engineering or piping design (Degree, HNC, HND or proven equivalent experience). Track record of delivering mechanical piping and plant layout designs--ideally within regulated sectors such as nuclear, process, oil & gas, or heavy industry. Proficiency using 3D Plant Design and CAD modelling software (e.g. AutoCAD Plant 3D, Inventor, Aveva E3D, or PDMS). Good working knowledge of piping systems, pressure equipment, and plant design best practices. Understanding of relevant UK/international piping standards and statutory requirements. Strong communication skills--able to explain technical issues clearly to colleagues, suppliers, and clients. Attention to detail, with analytical thinking and a proactive attitude towards process improvement. Full UK driving licence or the ability to travel to client/project sites, as required.
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What We Offer Our Mechanical Piping / Plant 3D Team

Competitive salary, with robust pension contributions, performance bonus, and Health Shield healthcare. Comprehensive benefits, including 26 days holiday (plus bank holidays), EV car scheme, company share scheme (qualifying periods apply), and death in service insurance. Hybrid and flexible working, promoting work-life balance. Clear professional development pathways--mentoring, technical training, and career progression within a world-class engineering organisation (VINCI Energies). Inclusive, supportive environment where diversity is valued and innovation is celebrated.

About Actemium Design

Actemium Design (formerly North West Projects) is a forward-thinking national engineering design company, specialising in regulated industry sectors. We deliver mechanical, EC&I, and process design solutions, supported by robust project management. As part of VINCI Energies, with a EUR14 billion turnover, Actemium Design offers exciting and sustainable growth prospects.

Security Clearance

Certain roles within our company require national security clearance. Your place of birth, nationality, past and current citizenships, and residency status may affect your eligibility for these positions. Further details can be found at


United Kingdom Security Vetting: clearance levels - GOV.UK (www.gov.uk).



We are an equal opportunities employer and welcome applications from everyone--regardless of gender, age, disability, ethnicity, or background.