Mechanical Designated Individual - CMDP at MWH Treatment · Brighton

MWH Treatment is looking to strengthen their operations team with an Mechanical Designated Individual. This is a national role where you will be the lead / focal point for the Mechanical Authorising Engineers, setting the culture for the organisation’s Mechanical H&S management.

The Mechanical Designated Individual (MDI) is the organisation’s senior accountable leader for Mechanical safety governance and technical assurance. They own the Mechanical Safety Rules and Authorisation Framework, set standards, and ensure robust compliance with statutory requirements and industry codes across all sites. The MDI leads a team of Mechanical Authorising Engineers (MAEs), providing direction, oversight, and assurance for design, installation, operation, maintenance, and contractor control of mechanical assets.

The role safeguards people, assets, and operations through disciplined risk management, competency-based authorisation, and continual improvement.

Responsibilities shall include:

Supporting the H&S team in matters of mechanical safety.

Authorising and administration of the Mechanical Safety Rules, associated procedures, and Permit-to-Work arrangements.

Providing professional and technical guidance on mechanical construction & mechanical contracting delivery.

Owns, interprets and monitors the use of the regional Mechanical Safety Rules.

Lead, coach, and performance-manage Mechanical Authorising Engineers (MAEs).

Set criteria for authorisation levels (e.g., Authorised Person (AP), Competent Person (CP), switching authorities, test & inspection).

Oversee initial authorisations, renewals, suspensions, and relocations, etc.

Chair authorisation panels.

Ensure competency is evidenced (training, experience logs, assessments, shadowing, refreshers, and CPD)

Maintain central registers of authorisations, training, and critical competencies.

Provide senior technical guidance on mechanical design standards, pressure system integrity, and statutory compliance.

Lead investigations of mechanical incidents/near-misses; produce root-cause analyses and corrective actions.

Define requirements for contractor competence, pre-qualification, and supervision.

Conduct internal audits.

Maintaining the identity and importance of the Mechanical Safety Rules to the wider business. Mechanical safety awareness training for PM’s and Construction Managers.

Qualifications

Essential

• Registered with a relevant engineering institution (e.g. IMechE) as a Chartered Engineer. Incorporated Engineer will be considered based on additional experience.
• Significant and extensive experience in mechanical systems design, operations, and maintenance.
• Master’s Degree or Bachelor’s Degree. HND or HNC in Mechanical Engineering or similar qualification will be considered based on additional experience.
• Prior role as Authorising Engineer (AE), Senior Authorised Person (SAP), or equivalent is strongly preferred.
• Experienced in verifying safe systems of work.
• Must be able to demonstrate a good understanding of UK health and safety legislation and an ability to carry out risk assessments and propose actions for risk control/management.

Benefits

MWH Treatment is an integrated design and build provider working in the water sector. With over 1400 staff working across eight regional centres, supporting six long-term water sector frameworks and two recently won frameworks, operating both as a sole contractor but also in joint ventures and alliances.

At MWH Treatment we believe that people matter. We know to build successful, creative teams we need a diverse workforce that can deliver innovative ways of thinking. We provide an environment where you will have the freedom to develop and grow to your full potential, creating opportunity by inviting, embracing, and celebrating difference, our goal as an employer is to motivate, and develop our employees. By fostering a diverse range of talents and perspectives we ensure we have the breadth of viewpoints, experiences, and skills needed to succeed. Embracing diversity of all kinds enables us to provide a work environment and culture that plays a key role in attracting and retaining the right people with the right skills.

As signatories to the Armed Forces Corporate Covenant, we have made a promise to support our forces, working with the CTP to help ex veterans find work in the civilian world. We also support Mates in Mind, a charitable programme to improve and promote positive mental health in the workplace. We don’t just tick boxes; we live these values every day.

What MWH offer

Packages include - 

A competitive salary

Hybrid Working (Jobs needs dependent)

Car/car allowance (Jobs needs dependent)

25 days holiday + Bank Holidays (with an additional 5 days available to buy)

Contribution Pension scheme

Life Assurance

Health Insurance

Private Medical Insurance

And many more benefits including – cycle to work scheme, discounts and savings Hub, Kids Pass etc