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Senior Mechanical Engineer

Job in Newport, Newport County, NP10, Wales, UK
Listing for: Career Choices Dewis Gyrfa Ltd
Full Time position
Listed on 2026-07-31
Job specializations:
  • Engineering
Salary/Wage Range or Industry Benchmark: 40000 - 70000 GBP Yearly GBP 40000.00 70000.00 YEAR
Job Description & How to Apply Below
Mott Mac Donald Bentley is a fully integrated design and build business combining the design expertise of Mott Mac Donald with the contracting experience of JN Bentley to deliver award winning projects. With an annual turnover surpassing £500 million, Mott Macdonald Bentley cements its position as a leader within the industry. The sustained, robust business performance creates an ideal environment for career growth.

Welsh:

We have secured a new framework with Dŵr Cymru Welsh Water that will last up to eight years, this will see MMB tackle projects across the DCC region covering both clean and wastewater treatment sites, as well as below ground assets, reservoirs and nature-based solutions.

After securing our first framework with DCC at the beginning of AMP6, our presence in Wales has grown significantly, directly employing over 270 colleagues in the country across all roles, from frontline construction to design and management positions.

As a Senior Mechanical Engineer you will contribute to projects that significantly impact our environment and communities. Working primarily in the UK water market, MMB provides the feasibility, design, construction, and commissioning services needed to keep water flowing and wastewater treated. You’ll work on projects that make a real difference to our environment and our communities by enhancing the efficiency and effectiveness of water and wastewater treatment systems.

You will play a pivotal role in shaping the mechanical functions throughout the lifecycle of various projects. From concept design to commissioning, you will ensure that all mechanical aspects are meticulously considered and integrated.

The role of a Senior Mechanical Engineer includes:
  • Lead the mechanical design of water and wastewater infrastructure and non-infrastructure projects through the outline and detailed design, construction, commissioning, and handover, including, but not limited to, P&IDs, valve schedules, pump calculations, defining safe access and lifting arrangements, above ground pipework layouts, etc.
  • Coordinate with the project team comprising of Electrical, Civil, Geotech and Process designers and ensure designs are completed on programme, within budget, and to the quality defined by framework specifications
  • Working closely and collaboratively with the commercial, operational and construction teams to develop efficient, practical and safe solutions throughout design stages, construction and beyond
  • Positively engage with the client, managing relationships and adopting a one-team approach to supporting them in achieving their aims
  • Supporting the development of the mechanical engineering team, coaching and mentoring engineers to develop their skill set and identifying the correct resource for the projects
What you’ll need:
  • Degree in Mechanical Engineering, or related field
  • Chartered or incorporated member of professional institution e.g ICE, IMechE, etc, or equivalent experience
  • Ability to communicate effectively with team members and stakeholders
  • Methodical approach to problem solving
  • A valid driving licence and willingness to travel to sites across your operational region
What we can offer:

At Mott Mac Donald Bentley you will be offered a competitive salary which is commensurate based on your experience. Our core benefits include:
  • 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 options
  • 26 weeks maternity leave, enhanced paternity and adoption leave/ Shared parental leave
  • Payment of annual professional institution subscription costs
  • Gym Membership discounts UK wide
  • Cycle to work scheme, interest free season ticket loans and discounted dining cards also available
Mott Mac Donald Bentley are not currently offering sponsorship to candidates under the Skilled Worker visa route in the UK. This decision is as a consequence of the changes made to the Skilled Worker route by the UK Government in April 2024. We continue to welcome applications from candidates who are eligible for alternative immigration routes in the UK, that do not require sponsorship as a Skilled Worker now or in future.

Other information

This is a Mott Mac Donald Bentley role, employed by Mott Mac Donald.
Mott Mac Donald Bentley is a joint venture business, established in 1999 between civil engineering contractor JN Bentley and global management consultancy, Mott Mac Donald.

Mott Mac Donald Bentley offers fully integrated design and build services to its clients, combining the contracting expertise of JN Bentley and the design specialisms of Mott Mac Donald.

This role is employed by Mott Mac Donald but will involve working across the joint venture business, both with Mott Mac Donald and JN Bentley colleagues.

About Mott Mac Donald
Mott Mac Donald is a global engineering, management and development consultancy.

Our purpose is to improve society by considering social outcomes in everything we do, relentlessly focusing on…
Position Requirements
10+ Years work experience
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