We're seeking a knowledgeable and driven Senior Mechanical Engineer to lead the design and technical delivery of mechanical systems across water and water recycling (non-infrastructure) projects. In this senior role, you'll be responsible for ensuring that engineering solutions are technically sound, efficient, sustainable, and aligned with project goals.

Key Responsibilities

1. Leading mechanical design activities across a portfolio of projects, from initial feasibility through to detailed design and delivery support.
2. Producing and reviewing technical specifications, ensuring compliance with relevant legislation and industry standards.
3. Coordinating closely with project managers, multidisciplinary teams, suppliers, and contractors to achieve integrated project outcomes.
4. Supporting hazard studies, design reviews, and safety assessments such as HAZOP and HAZCON.
5. Driving innovation by adopting digital design tools, promoting offsite construction, and contributing to decarbonisation efforts.
6. Providing support during construction and commissioning phases, resolving technical queries and ensuring buildability.
7. Offering technical leadership to junior engineers, reviewing their work, and helping them develop their skills.
8. Feeding into continuous improvement and technical governance processes, sharing lessons learned and best practices.

Qualifications

• A degree in Mechanical Engineering (or a related discipline); Chartered or Incorporated Engineer status is desirable, or working towards it.
• Strong experience delivering mechanical design within the water, utilities, or infrastructure sectors.
• In-depth knowledge of mechanical systems, UK design codes, CDM regulations, and health and safety requirements.
• Competence in using CAD and other design tools (e.g., Autodesk Plant 3D or similar).
• A collaborative mindset, with experience working in multidisciplinary environments.
• Strong written and verbal communication skills, with the ability to explain technical detail clearly and confidently.
• A problem-solving approach with a drive to innovate, improve efficiency, and embed sustainable thinking.

About the Role

Mott MacDonald Bentley is recruiting for a Senior Mechanical Engineer to join the Anglian Water @One Alliance. As part of Anglian Water's @One Alliance, we aim to create a sustainable and resilient future for water with an ambitious £2.3 billion capital investment in AMP8. Join a dynamic, forward-thinking team that is shaping the future of the UK's water infrastructure, offering a collaborative and innovative working environment where your expertise will be valued.

This is a role employed by Mott MacDonald, working across the joint venture with JN Bentley and Mott MacDonald. Mott MacDonald is a global engineering, management, and development consultancy dedicated to improving society through social outcomes, excellence, and digital innovation.

Benefits

• Pension matched by employer up to 7%
• Option to purchase, sell, and carry over annual leave
• Life assurance, Private Medical Insurance, Critical Illness Insurance, and Health Screening
• 26 weeks maternity leave, enhanced paternity and adoption leave, shared parental leave
• Payment of annual professional subscription costs
• Gym membership discounts UK-wide
• Cycle to work scheme, interest-free season ticket loans, discounted dining cards