Senior Mechanical Design Engineer (Water)

RPS Group; London; On-site; GBP 50,000 - 75,000; Full time

Job summary

A leading consulting firm is looking for a Senior Mechanical Design Engineer (Water) in London. This role involves contributing to significant water projects, requiring expertise in mechanical engineering and water industry knowledge. Ideal candidates will have experience in design outputs and project management within the water sector.

Benefits

Personal development plans

Flexible working options

Support for career growth

Qualifications

• Experience producing technical outputs such as specifications and designs.
• Familiar with design reviews and safety assessments like HAZOPs.
• Understanding of water and wastewater treatment processes.

Responsibilities

• Work on diverse projects across frameworks with UK water companies.
• Collaborate with Senior and Principal Engineers.
• Prepare mechanical design deliverables including calculations and drawings.

Skills

Mechanical engineering principles

Water industry experience

Pump design and specifications

Knowledge of P&ID creation

Safety regulations

Contract procurement methods

AutoCAD proficiency

Education

IMechE-accredited degree

Postgraduate qualifications

Tools

AutoCAD

Inventor

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: 48

Posted: 24.06.2025

Expiry Date: 08.08.2025

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 the Northwest.

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, creating positive change.

Under this 10-year framework, RPS will optimize programs, develop solutions, and select the best options based on value, carbon footprint, and cost, aiming to deliver exceptional water services and support a resilient, eco-friendly Northwest.

About The Team:

RPS Water Consulting consists of Engineers, Modellers, and Data Analysts providing Asset Management and Operational Strategy services. We work with major water companies across the UK, managing long-term frameworks and leading significant AMP8 programmes.

About You:

You should have experience in producing technical specifications, designing pumping and aeration systems, and collaborating on design reviews and solutions. You should be able to provide design outputs such as General Arrangement Drawings, 3D models, and Piping & Instrumentation Diagrams.

Strong communication skills are essential for delivering technical presentations and participating in workshops, safety reviews, and HAZOPs. Knowledge of water and wastewater treatment processes and infrastructure assessment is required.

Joining us means working on impactful projects with leading organizations, making a lasting difference in communities, and contributing to the future of water management.

Your Responsibilities:

• Work on various projects within long-term frameworks with UK water companies.
• Support project delivery alongside Senior and Principal Engineers.
• Mentor junior team members.
• Understand technical drawings using AutoCAD and/or Inventor.
• Conduct asset condition surveys and prepare reports.
• Contribute to P&ID creation and mechanical design deliverables, including calculations, reports, specifications, and drawings.
• Support compliance with CDM duties and produce risk assessments.
• Follow Quality Assurance procedures.

Skills, Knowledge, and Experience:

• Strong understanding of mechanical engineering principles.
• Experience in the water industry is advantageous.
• Knowledge of pump design, P&ID creation, specifications, and safety regulations.
• Familiarity with contract procurement methods, including NEC (ECC).
• Ability to manage work to time, cost, and quality standards.
• Support for junior staff development.
• Willingness to travel to operational sites and witness tests.
• Proficiency with AutoCAD or similar software is a plus.

Qualifications:

• IMechE-accredited degree; postgraduate qualifications are a plus.
• Chartered or working towards chartership.
• Membership or working towards membership of a professional institution (IET, InstMC, CIWEM).

What’s in it for you?

Personal development plans and clear career pathways, supported growth, and a diverse, inclusive environment that values different perspectives and ideas.

A unique career experience with opportunities to work on impactful water projects and leave a legacy.

Why RPS?

We promote flexible working, collaboration, and social connection, offering hybrid working options. As part of Tetra Tech since January 2023, we provide global opportunities, innovative projects, and a commitment to solving complex problems.

Join us and make a difference in water!

#LI-MM1 #LI-REMOTE #LI-HYBRID

Diversity and Inclusion:

We are committed to embedding diversity and inclusion in all our processes, recognizing the value of a diverse workforce that reflects our communities and clients. Our core behavior 'Stronger Together' emphasizes respect, acknowledgment of diversity, and mutual growth.

Recruitment Agencies:

We work with trusted partners and do not accept unsolicited CVs from agencies not on our approved list. For more information, visit our careers page.