Company: MWH Treatment Limited
Location: Peterborough
Posted: April 24th, 2026
We are looking to strengthen our engineering team with a Project Design Manager at our @One Alliance, Peterborough office, with hybrid working available.
As a Project Design Manager, you’ll take technical ownership of major infrastructure projects from initial feasibility through to detailed design and handover. You’ll coordinate design delivery across multi-disciplinary teams, ensuring designs are practical, sustainable, and aligned with cost, time, and quality expectations.
You’ll act as a key point of contact across the project lifecycle, working closely with project leaders, engineers, construction teams, and external stakeholders to ensure seamless delivery. It’s a hands-on, highly collaborative role that puts you at the centre of some of the most important infrastructure work happening in the region.
Your key responsibilities will include:
Leading the design process on major capital projects, from early concept through to detailed technical development and design assurance.
Ensuring design outputs are fully integrated, meeting operational, commercial, and environmental objectives of the wider project.
Acting as Principal Designer under CDM regulations, managing design risk and ensuring safety considerations at every stage.
Driving digital design excellence, supporting BIM and 3D modelling to enhance coordination, data integration, and project outcomes.
Challenging and improving technical standards, encouraging innovation, low-carbon solutions, and cost-effectiveness.
Liaising with project leaders and delivery teams to plan and allocate design resources effectively, keeping all technical aspects on track.
Building strong relationships with internal and external stakeholders to ensure designs meet operator, contractor, regulator, and community needs.
Championing best practices in quality, health and safety, and performance within your team and the wider Alliance.
Mentoring junior engineers and designers, fostering a positive learning environment and skill development.
Promoting cross-disciplinary collaboration to maximize value at each design stage.