Mott MacDonald Bentley | MMB
Mechanical Engineer
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Mechanical Engineer
Internal applications welcomed
Mott MacDonald Bentley is a fully integrated design and build business combining the design expertise of Mott MacDonald 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.
Opportunity overview
We have secured partnership on a new AMP8 framework with United Utilities, extending our collaboration for at least the next five years. This £3bn+ North West England infrastructure programme focuses on:
- Upgrading wastewater treatment works
- Reducing storm overflows through the UK’s largest spill reduction programme
- Protecting 500km+ of rivers and bathing waters
Mechanical Engineer
You'll contribute to transformational water-related projects that directly impact communities and the environment. Our UK water market clients rely on us for end-to-end services—from feasibility through to design, construction, and commissioning.
As the Mechanical Engineer, you'll bring projects to life by shaping their mechanical functions, ensuring seamless integration across system lifecycles. Responsibilities include:
- Detail-oriented design of infrastructure and non-infrastructure projects, including:
- Process and instrumentation diagrams (P&IDs)
- Valve schedules and pump calculations
- Hazardous area classifications and safe access provisions
- Above-ground pipework layout coordination
- Coordinating cross-discipline teams (Electrical, Civil, Geotech, and Process) to ensure designs meet programme, budget, and quality targets
- Collaborating with commercial, safety, and construction teams to deliver practical, safe, and efficient solutions
- Building stakeholder relationships and adopting a ‘one-team’ culture while effectively communicating client expectations
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Key responsibilities
- Development and technical leadership in water treatment projects
- Design delivery (concept through handover) with focus on mechanical engineering integrity
- Alignment of designs with regulatory, safety, and commercial requirements
- Embedding a risk-mitigated, sustainable approach into projects
About the role
This is a permanent, full-time role based in Manchester.
Requirements
Qualifications
- Degree in Mechanical Engineering or an associated discipline
- Working towards IEng or CEng registration
- Valid UK drive licence (site travel required)
Professional competencies
- Strong problem-solving approach
- Ability to communicate effectively with team members, clients, and stakeholders
- Capacity to work within multi-disciplinary frameworks
What the role offers
Financial benefits
- Pension match: Company contributes 4.5–7% of employee salary to pension schemes
- Bonus schemes backing the business’ financial success
- Coverage of professional registration fees
Time off/Wellbeing
- 33+ days holiday annually (including public holidays) with flexible bank options
- Insurance options (life assurance, critical illness, private medical)
- Supportive policies on flexible working and child/carer leave
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Development
- Tailored chartered membership pathways (mentorship, training,ания acceleration)
- Access to global Mott MacDonald knowledge base and best practices
Note on technical sponsorship
We currently *cannot sponsor Skilled Worker visa applicants under UK changes introduced in March 2024, though alternative immigration routes remain open.
Why work with us?
Organisational purpose
Award-winning projects underpin our dedication to wider social and environmental outcomes. You’ll join a culture founded on principles of progress, respect, integrity, drive and excellence.
Diversity commitment
We actively encourage applications from underrepresented seniorsities, reflecting our HR policy: Diversity & Inclusion.
Flexible work
Agile environments empower you to fit work around wider commitments while maintaining project momentum.
Apply now
For more information, contact: Lauren Hutchinson (lauren.hutchinson@jnbentley.co.uk) or visit the job page (Link).
Equal opportunities, adjustments and career progression are integral to our recruitment ethos. Contact recruitment@jnbentley.co.uk or +44(0)1756 691572 to discuss support needs. Find our full Equality Policy.
Job Ref: 13543
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