Senior Design Manager

We are looking to strengthen our Engineering team with a Senior Design Manager to join our Southern Division with flexible working available.

Are you an experienced Senior Design Manager ready to drive the successful delivery of complex water and wastewater infrastructure projects? At MWH Treatment, our design leaders play a critical role in shaping innovative, sustainable solutions that help deliver safer, smarter, and more resilient water services for our customers and communities.

We are looking for a Senior Design Manager to provide leadership across the design lifecycle, ensuring high-quality, technically robust, and buildable solutions are developed and delivered. Working across a portfolio of major projects, you will lead multidisciplinary teams, influence project outcomes, and drive collaboration to ensure designs meet client requirements, programme objectives, and regulatory standards.

Key responsibilities:

• Leading engineering and design delivery across a portfolio of projects, from scope definition through to handover.
• Making sure designs meet health and safety, quality, technical, environmental, sustainability and governance requirements.
• Working closely with designers, technical specialists, suppliers, construction teams and clients to deliver successful project outcomes.
• Managing design plans, deliverables, risks, decisions, change control and monthly reporting.
• Supporting a culture of open communication, constructive challenge, shared learning and continuous improvement.