Senior Mechanical Engineer

JN Bentley; North East; On-site; GBP 55,000 - 75,000; Full time

Benefits offered by this job

Pension plan

Annual bonus

Professional subscriptions

Private medical insurance

Life assurance

Flexible working

Career development programmes

Job summary

Mott MacDonald Bentley is seeking a Senior Mechanical Engineer to contribute to water and wastewater projects in the UK. You will shape mechanical aspects from concept to commissioning and ensure integration across the lifecycle of multiple projects.

Join a collaborative team delivering design and build solutions, with opportunities to mentor engineers, travel to sites, and develop through chartership and structured development programs.

Qualifications

• Degree in Mechanical Engineering is required.
• Chartered or incorporated member of a professional institution (e.g., ICE, IMechE) or equivalent experience.
• Ability to communicate effectively with team members and stakeholders.
• Methodical approach to problem solving.
• Valid driving licence and willingness to travel to sites across the region.
• Water/wastewater experience required.

Responsibilities

• Lead the mechanical design of water and wastewater infrastructure and related projects through outline and detailed design, construction, commissioning, and handover, including P&IDs, valve schedules, pump calculations, safe access and lifting arrangements, and above ground pipework layouts.
• Coordinate with Electrical, Civil, Geotech and Process designers to ensure designs are on programme, within budget, and to specified quality.
• Collaborate with commercial, operational and construction teams to deliver efficient, practical and safe solutions across design stages.
• Engage with clients, manage relationships, and support a one-team approach to achieving aims.
• Support the development of the mechanical engineering team, coaching engineers and assigning resources.

Skills

Professional registration

Communication skills

Problem solving

Driving licence

Willingness to travel

Water/wastewater experience

Education

Degree in Mechanical Engineering

Job description

• Internal applicants are welcome.

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.

We joined a new partnership in Northumbrian Water’s new Living Water Enterprise, an innovative vehicle developed to deliver large scale construction programmes in AMP8 and beyond, supporting a £3.6 bn workload.

Northumbrian Water supplies water and sewerage services to just under 4.4 million people and has worked closely with MMB and JN Bentley since 2001. In this time, the companies have delivered hundreds of engineering and construction projects together. This new contract will extend the relationship to at least 2030 and see MMB – which harnesses the contracting strength of JN Bentley and the design specialisms of Mott MacDonald – undertake treatment projects across the North East.

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.
• Water/wastewater experience required.

What’s in it for you:

Financial wellbeing

• MMB match employee pension contributions between 4.5% and 7%.
• As an independently owned business we share the financial success of the business with all our colleagues including our annual bonus schemes.
• Payment of annual professional institution subscription costs.

Health and wellbeing

• A minimum of 33 days holiday each year, inclusive of public holidays, with the ability to buy, sell or carry over annual leave through our flexible benefits programme.
• Access to Life Assurance / Private Medical Insurance / Critical Illness Insurance and Health Screening options.
• We are happy to talk openly about flexible working and how we can support your responsibilities beyond the workplace.
• Join a wide range of groups including our Advanced Employee Networks which support our LGBTQ+, gender, race and ethnicity, disability, and parents/carers communities.

Enhanced family and carers leave

• Enhanced family leave policies, including 26 weeks paid maternity and adoption leave, and two weeks paid paternity/partner leave plus the option for shared parental leave.
• Up to 2 paid additional days leave are provided for those with significant caring responsibilities.

Learning and development

• MMB are committed to empowering our people to grow professionally and thrive in their careers. We offer structured development schemes that support your journey toward professional chartership. From day one, employees are fast-tracked towards chartership reviews and benefit from mentorship, hands‑on experience, and tailored training opportunities.

Mott MacDonald Bentley are not currently offering sponsorship to candidates under the Skilled Worker visa route in the UK. This decision is 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.