Mechanical Design Engineer Senior/Principle

CIBSE Journal; Exeter; Hybrid; GBP 65,000 - 90,000; Full time

Job summary

CIBSE Journal is seeking a Senior/Principal Mechanical Design Engineer to lead mechanical design on major UK water and wastewater schemes. The role supports a design & build contractor with nationwide projects and hybrid working options from home or local offices.

You will collaborate with multidisciplinary teams, review designs and submissions, and guide packages from feasibility through detailed design to delivery, ensuring compliant, practical solutions across water infrastructure.

Qualifications

• Degree in Mechanical Engineering or equivalent.
• Experience delivering projects through the full design life cycle.
• Previous UK Water or Wastewater sector experience.
• Experience working on AMP-related projects for a UK Water Authority.
• Experience using 3D design tools and other proprietary software.
• Ability to take technical responsibility for smaller projects and work packages.

Responsibilities

• Deliver feasibility, outline, detailed and final mechanical design work.
• Review mechanical designs, technical specifications, proposals and submissions.
• Take technical responsibility for smaller projects, work packages and individual design tasks.
• Support key design reviews for Water Authority AMP projects.
• Work on Water treatment works, Wastewater treatment works, pumping stations, reservoirs and associated water infrastructure.
• Provide technical guidance to multidisciplinary teams and project stakeholders.

Skills

Mechanical design

Project lifecycle

Water/wastewater domain

Cross-disciplinary teamwork

3D design tools

Education

BEng/MEng in Mechanical Engineering

Tools

3D design software

Job description

Senior / Principal Mechanical Design Engineer

Location: Positions UK Wide, Hybrid to Local Office (up to 4 days from home)

Rate: Dependent on Experience

Duration: 12 Months+/Ongoing

Sector: Water & Wastewater Treatment

Are you a Senior / Principal Mechanical Design Engineer looking for a new challenge on major UK Water and Wastewater treatment schemes?

You will be working with a leading Design & Build contractor delivering major clean and wastewater projects across a range of frameworks nationwide. With projects and design teams supporting Water Authority AMP programmes throughout the UK, they are looking to recruit additional mechanical design support across their regional teams.

If you are not based close to one of their offices, a more flexible arrangement can be considered for the right candidate, with travel to an office or site potentially required just once a fortnight.

As a Senior / Principal Mechanical Design Engineer, you will be supporting Water and Wastewater treatment projects across the full design life cycle, from feasibility and outline design through to detailed and final design. You will be working closely with multidisciplinary engineering teams, reviewing technical designs and submissions and helping ensure mechanical solutions are practical, compliant and ready for successful delivery.

You will be:

• Delivering feasibility, outline, detailed and final mechanical design work.
• Reviewing mechanical designs, technical specifications, proposals and submissions.
• Taking technical responsibility for smaller projects, work packages and individual design tasks.
• Supporting key design reviews for Water Authority AMP projects.
• Working on Water treatment works, Wastewater treatment works, pumping stations, reservoirs and associated water infrastructure.
• Providing technical guidance and mechanical design input to multidisciplinary engineering teams and project stakeholders.
• Supporting projects from initial concept and feasibility through to detailed design and delivery.

This Senior / Principal Mechanical Design Engineer role gives you the opportunity to take on greater technical responsibility within an established engineering team while contributing to major Water and Wastewater projects across the UK.

To be considered, you will need:

• A Mechanical Engineering degree or equivalent qualification.
• Experience delivering projects through the full design life cycle, from inception through to detailed design.
• Previous UK Water or Wastewater sector experience.
• Experience working on AMP–related projects for a UK Water Authority.
• Experience using 3D design tools and other relevant proprietary engineering software.
• The ability to take technical responsibility for smaller projects and individual work packages.
• Experience designing mechanical solutions for Water treatment works, Wastewater treatment works, pumping stations, reservoirs or associated water infrastructure.