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Lead Mechanical Engineer

Job in Cardiff, Cardiff City Area, CF10, Wales, UK
Listing for: Arup
Full Time position
Listed on 2026-07-20
Job specializations:
  • Engineering
    Mechanical Engineer, Environmental Engineer, Water Engineer, Water Management
Salary/Wage Range or Industry Benchmark: 70000 - 90000 GBP Yearly GBP 70000.00 90000.00 YEAR
Job Description & How to Apply Below

Overview

This role is with ARUP, an inclusive employer and a member of my Gwork – the largest global platform for the LGBTQ+ business community. Please do not contact the recruiter directly.

The Opportunity

We are seeking a Lead Mechanical Engineer to join our Water team and contribute to the delivery of robust, efficient engineering solutions across the water industry. In this role, you will take ownership of the design and execution of water and wastewater treatment projects, including pumping systems and transmission infrastructure.

Ideally you will be based in Cardiff, Bristol or Birmingham
.

You will work on technically challenging and high-value projects within long-term frameworks for major UK water utilities such as Welsh Water, United Utilities, Severn Trent Water and Wessex frameworks. You will apply your technical expertise, lead key project tasks, and provide guidance to junior team members. Building and maintaining strong relationships with clients and partners will be an essential part of the role.

As a Lead Mechanical Engineer, you will lead the mechanical design and delivery of water sector projects from feasibility through to construction. You will provide technical direction to multidisciplinary teams, with a focus on treatment systems, pumping solutions, and pipework design. The role involves overseeing and supporting the work of junior engineers and technicians, ensuring high standards across all stages of project delivery.

You will engage directly with clients to meet technical requirements, manage timelines, and stay within budget. You will contribute to work-winning activities, including the preparation of project bids, proposals, and participation in client meetings. You will make effective use of digital tools such as BIM and Plant 3D to enhance project outcomes and you will be expected to promote a culture of technical rigour, operational efficiency, and innovation within the team.

The available position is for senior engineers with experience in water, including treatment facilities, pumping systems and pipework. We want people who are self-motivated and able to adapt to the demands of projects and clients, someone who will enjoy solving problems and have the capability to lead our multidisciplinary teams to deliver high quality solutions.

Is this role right for you?

We are seeking the below skills and knowledge:

  • Proven experience delivering mechanical designs in the water utilities sector, including treatment facilities and pumping systems
  • Chartered Engineer (CEng) status with IMechE or relevant body, or progressing toward chartership
  • Sound knowledge of current mechanical design standards and practices in the UK water industry
  • Proficiency in understanding digital design software (e.g., BIM, Plant 3D)
  • Clear communication skills and the ability to work effectively within multidisciplinary teams
  • A results-oriented mindset, with the ability to manage priorities and deliver high-quality work on time

Note:

visa sponsorship is not available. Applicants must have the right to work in the UK at the time of application and for the duration of employment. Any offer will be subject to satisfactory proof of immigration status.

Please note, to ensure we remain GDPR compliant do not send your CV directly to us via this email.

What we offer you

At Arup, we care about each member's success, so we can grow together. Guided by our values, we provide an attractive total reward package that recognises the contribution of each of our members to our shared success. As well as competitive, fair and equitable pay, we offer a career in which all of our members can belong, grow and thrive - through benefits that support health and wellbeing, a wide range of learning opportunities and many possibilities to have an impact through the work they do.

We are owned in trust on behalf of our members, giving us the freedom, with personal responsibility, to set our own direction and choose work that aligns with our purpose and adds to Arup's legacy. Our members collaborate on ambitious projects to deliver remarkable outcomes for our clients and communities. Profit Share is a key part of our reward, enabling members to…

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