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Permanent

Senior / Principal Mechanical Engineer - Water Sector

Calibre Search
Manchester
money-bag £50000 - £75000/annum
Posted: 17 July 2026 (Today)
Closing date: 16 August 2026
Ref: 225385748

Senior / Principal Mechanical Engineer - Water Sector

Location: Manchester (Hybrid Working)

Salary: Competitive + Excellent Benefits



Senior / Principal Mechanical Engineer - Water & Wastewater Infrastructure

A fantastic opportunity has arisen for a Senior or Principal Mechanical Engineer to join a leading multidisciplinary engineering consultancy delivering major water and wastewater infrastructure projects across the UK.

This role offers the chance to work on high-profile programmes for some of the UK''s largest water authorities, delivering innovative engineering solutions from concept through to construction. You''ll join an experienced multidisciplinary team where you''ll play a key role in technical delivery, project leadership and mentoring junior engineers while developing your own career.

If you''re looking to work on complex infrastructure projects within the Water, Utilities or Environmental Engineering sectors, this is an excellent opportunity to progress within a collaborative and forward-thinking business.



The Role

As a Senior / Principal Mechanical Engineer, you''ll lead the delivery of mechanical design packages on complex multidisciplinary projects while supporting project managers, clients and engineering teams throughout the project lifecycle.

Key responsibilities include:

  • Leading or coordinating mechanical engineering design for major water and wastewater infrastructure projects.

  • Producing and reviewing high-quality engineering deliverables including calculations, reports, specifications, drawings and scopes of work.

  • Delivering mechanical engineering solutions for pumping stations, water treatment and wastewater treatment facilities.

  • Managing technical delivery to programme, budget and quality requirements.

  • Working closely with multidisciplinary design teams to deliver integrated engineering solutions.

  • Providing technical guidance and mentoring to junior engineers.

  • Supporting project bids, tenders and technical proposals.

  • Ensuring compliance with relevant UK engineering standards, legislation and industry best practice.

  • Working independently while collaborating with clients and internal project teams.



About You

The successful candidate will have:

  • Degree qualified in Mechanical Engineering or equivalent.

  • Chartered Engineer (CEng) or Incorporated Engineer (IEng) status, or working towards professional registration.

  • Experience delivering mechanical engineering design within a consultancy or engineering environment.

  • Strong experience within the UK Water, Wastewater or Utilities sector (preferred).

  • Practical knowledge of mechanical equipment including:

    • Pumps

    • Blowers

    • Screens

    • Chemical dosing systems

  • Good understanding of mechanical design for water and wastewater treatment processes.

  • Knowledge of UK engineering standards, CDM Regulations, DSEAR and industry best practice.

  • Experience coordinating multidisciplinary engineering projects.

  • Excellent communication and stakeholder management skills.

  • Experience using relevant mechanical engineering design and analytical software.

  • A proactive, collaborative approach with the ability to mentor and support developing engineers.



What''s on Offer

  • Hybrid working (typically 3 days in the office or on site).

  • Opportunity to work on nationally significant water infrastructure projects.

  • Competitive salary and comprehensive benefits package.

  • Excellent career progression within a growing engineering team.

  • Ongoing training, mentoring and professional development.

  • Flexible working arrangements.

  • Support towards further professional development where required.

  • Collaborative and inclusive working environment.



Apply Now

If you''re an experienced Senior Mechanical Engineer, Principal Mechanical Engineer, Lead Mechanical Engineer, Mechanical Design Engineer, Water Engineer or Mechanical Project Engineer with experience in Water, Wastewater, Utilities, MEICA or Infrastructure Engineering, we''d love to hear from you.

Apply today with your CV for a confidential discussion.

Calibre Search promote equality in the workplace and we welcome applications from all suitably skilled or qualified candidates regardless of their sex, race, disability, religion/beliefs, sexual orientation or age. We act as both an employment agency and employment business.

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