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Principal Mechanical Engineer

Job in Cardiff, Cardiff City Area, CF10, Wales, UK
Listing for: Snc-Lavalin
Full Time, Part Time position
Listed on 2026-02-17
Job specializations:
  • Engineering
    Mechanical Engineer, Environmental Engineer, Engineering Design & Technologists
Job Description & How to Apply Below
Principal Mechanical Engineer page is loaded## Principal Mechanical Engineer locations:
GB.Bristol.

The Hub:
GB.Cardiff.
2 Capital Quarter Tyndall street:
GB.Exeter.

Aperture West:
GB.Swansea.

West Glamorgan House:
GB.Derby.

Rayneswaytime type:
Full time posted on:
Posted Yesterday job requisition :
R-147313###
** Job Description**## Overview
** Shape the Future of our cities and environments.
** Are you a Principal Mechanical Engineer whoJoin  and take a leading role in shaping the future of our cities and environments.

We are looking for an energetic and experienced Principal Mechanical Engineer to join our team within the Design & Advanced Technology (D&AT) Practice of . You’ll be part of a talented, multi-disciplinary team delivering cutting edge, iconic projects to our Water market clients – clients such as Wessex Water, Welsh Water, Severn Trent Water, South West Water, Environment Agency, as well as other regional water authorities.

As a key member of our team, you’ll play a vital role in delivering transformational programmes for critical UK infrastructure, with opportunities to work on landmark engineering projects both domestically and internationally. We’re committed to providing industry-leading solutions throughout the project lifecycle, adding value through client-side and construction-phase support.

Become part of a team where every voice matters, and together we can tackle our clients’ toughest challenges. We foster a diverse and inclusive environment where world-class talent thrives without boundaries. For us, collaboration isn’t a buzzword.  We value the different perspectives our people bring and recognise everyone for their contributions equally.

We also know that different people have different priorities, which is why we’re here to support you with whatever you need.

We offer hybrid working which involves 3 days per week being office/site based. This position is based in our Bristol, Exeter, Cardiff, Swansea, Birmingham or Derby offices.##

Your role

The role will offer achallengingand rewarding opportunity to apply knowledge, experience, and problem-solving skills whilstprovidinggood opportunities for career development.

As Senior/Principal Mechanical Engineer  in the D&AT practice, the successful candidate would have the following responsibilities:
* Coordinate or manage a team of Mechanicalengineers for delivery of technical design work on complex multi-disciplinary projects following relevant national and project specific design codes and standards, and to high-quality levels in areas such aspumping systemsandwater & wastewater treatmentdesign.
* Responsible for producingandreviewing technical deliverables such asdesignreports, drawings, calculations, and scopes of work with defined scope.
* Provide technical input into project design deliverablesfor

Mechanicalaspects of complex multi-disciplinary projects and work with the project management team to successfully manage time and budgets to key project milestones and programmes.
* Collaborate with client, operational, project, or service activities within your immediate team and other related

Atkins

Réalisteams.
* Provide mentorship to less experienced colleagues and help to grow the Mechanical

Engineering capabilitieswithinthelocal team.
* Work independently with minimal technical guidance.

Exercise personal judgement to solve difficult problems whereappropriateand provide guidance to junior team members.
* Provide technical support for bid proposals.
* Work closely with a multi-disciplinary team in the UK and overseas to deliver integrated design solutions.
* Adhere to quality assurance standards in design including check and review ofownwork as well as others.## About you
* A degree in Mechanical

Engineering or equivalent.
* Charteredor Incorporated Mechanical Engineer .
* Proven experience in coordinating or managing aMechanicalengineering design delivery teamfor adesign consultancyincludingwithin a multi-disciplinary environment.
* Takesbroadperspective toidentifyinnovative solutions to design problems.
* The role requires comprehensive knowledge and proven practical experience in thedesignintegration of a wide range of mechanical equipment, including pumps,…
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