Senior Mechanical Design Engineer (Water)

RPS Group; London; Hybrid; GBP 150,000 - 200,000; Full time

Job summary

A leading engineering company in London is seeking a Senior Mechanical Design Engineer to work on major projects in the water sector. The role involves producing design deliverables, mentoring junior staff, and ensuring project delivery. Ideal candidates will have a strong background in mechanical engineering and water treatment processes. Join to make a meaningful impact on sustainable water services.

Benefits

Personal development plan

Clear career pathways

Supportive environment valuing diversity and innovation

Qualifications

• Experience producing technical specifications.
• Ability to create General Arrangement Drawings and 3D models.
• Strong communication skills for technical presentations.

Responsibilities

• Work on projects across UK water frameworks.
• Support project delivery with senior team members.
• Mentor junior staff.

Skills

Strong understanding of mechanical engineering principles

Water industry experience

Knowledge of pump design

Ability to manage work within time, cost, and quality constraints

Experience with AutoCAD or similar software

Education

IMechE-accredited degree

Postgraduate qualifications

Tools

AutoCAD

Job description

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Senior Mechanical Design Engineer (Water), London

Client: RPS Group

Location: London, United Kingdom

Job Category: Other

EU work permit required: Yes

Job Reference: 4cfc903c5580

Job Views: 71

Posted: 12.08.2025

Expiry Date: 26.09.2025

Job Description:

Senior Mechanical Design Engineer (Water)

We are recruiting multiple Senior Mechanical Design Engineers (Water) for long-term frameworks across the UK, including a £100 million framework with United Utilities to improve river health in Northwest England.

RPS has over 20 years of collaboration with United Utilities on innovative water projects. As we approach AMP8, this is an exciting time to work in the water industry, supporting sustainable and resilient water services in the Northwest.

About The Team:

Our Water Consulting team includes Engineers, Modellers, and Data Analysts providing Asset Management and Operational Strategy to water industry clients, supporting business planning and delivery.

Beyond the United Utilities framework, we work with several major UK water companies, managing long-term framework agreements and leading major AMP8 programmes.

About You:

You should have experience producing technical specifications, designing pumping and aeration systems, and collaborating on design reviews. Ability to create General Arrangement Drawings, 3D models, and P&ID diagrams is essential. Strong communication skills for technical presentations and collaborative discussions are required. Knowledge of water and wastewater treatment processes and infrastructure assessment is important.

Joining us means working on impactful projects with leading industry professionals, contributing to communities across the UK, and leaving a lasting legacy. We seek dedicated professionals eager to make a difference.

Your Responsibilities:

• Work on projects across UK water frameworks.
• Support project delivery with senior team members.
• Mentor junior staff and support team development.
• Understand technical drawings, asset surveys, and produce design deliverables.
• Assist with safety and quality assurance procedures.

Skills, Knowledge, and Experience:

• Strong understanding of mechanical engineering principles.
• Water industry experience is advantageous.
• Knowledge of pump design, P&ID creation, and specifications.
• Familiarity with CDM regulations and contract methods.
• Ability to manage work within time, cost, and quality constraints.
• Support for junior staff and willingness to visit sites.
• Experience with AutoCAD or similar software is a plus.

Qualifications:

• IMechE-accredited degree; postgraduate qualifications are a plus.
• Chartered status or working towards it; membership with professional institutions is desirable.

What’s in it for you?

We offer a personal development plan, clear career pathways, and a supportive environment that values diversity, well-being, and innovation. Join us to make a meaningful impact in the water sector.

Why RPS?

We foster a flexible, collaborative, and inclusive workplace, with hybrid working options. As part of Tetra Tech since January 2023, we provide global opportunities and solutions to complex challenges.

Join us and make a difference in water!