Principal Mechanical Engineer

JN Bentley; Manchester; On-site; GBP 90,000 - 120,000; Full time

Benefits offered by this job

Pension 7%

Life insurance

Private medical insurance

Maternity leave

Job summary

Mott MacDonald Bentley is seeking a Principal Mechanical Engineer to lead the mechanical design of water and wastewater projects in the UK. You will oversee design, planning and execution, providing technical guidance to engineers and coordinating with Electrical, Civil, Geotech and Process teams.

The role emphasizes delivering safe, efficient, and compliant solutions across the project lifecycle, with opportunities to mentor junior staff and influence best practices in the industry.

Qualifications

• Chartered Mechanical Engineer or above.
• Degree in Mechanical Engineering, or related field.
• Strong knowledge of the water and/or wastewater industry.
• Strong knowledge of mechanical engineering principles, practices, and standards related to process industries.
• Excellent communication, leadership, and problem-solving skills.
• Proven ability to manage multiple design tasks and meet deadlines.

Responsibilities

• Lead and oversee the mechanical design aspects of projects.
• Provide technical guidance to mechanical engineers and project teams.
• Coordinate with cross-disciplinary design teams (Electrical, Civil, Geotech, Process).
• Mentor junior engineers and develop the team.

Skills

Communication

Leadership

Problem-solving

Project management

Education

Bachelor's/Master's degree in Mechanical Engineering

Tools

None

Job description

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 have been named a partner on a new AMP8 framework with United Utilities, which will extend our relationship for at least the next five years. The partnership is set to be responsible for over £3 bn of major infrastructure in the North West of England. Investment includes upgrades to wastewater treatment works and reducing storm overflows through the delivery of the largest spill reduction programme in the UK, protecting more than 500 km of rivers and bathing waters.

As a Principal 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.

The Role Of a Principal Mechanical Engineer Includes

• Lead and oversee the design, planning, and execution of the mechanical engineering aspects of our projects.
• Provide technical expertise and guidance to our mechanical engineers and project teams.
• Develop knowledge and excellence within the team.
• Mentor and develop junior engineers and team members.
• Lead the development of the mechanical design of water and wastewater infrastructure and non‑infrastructure projects through the project lifecycle, encompassing P&IDs, valve schedules, pumps, tanks, process equipment, above‑ground pipework, lifting and access steelwork.
• Coordinate with the wider design team of Electrical, Civil, Geotech and Process engineers.
• Work closely with the project teams to ensure the application of client asset standards and engage in particular technical discussions on best practice and standards waivers.
• Collaborate 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.

What You’ll Need

• Chartered Mechanical Engineer or above.
• Degree in Mechanical Engineering, or related field.
• Strong knowledge of the water and/or wastewater industry.
• Strong knowledge of mechanical engineering principles, practices, and standards related to process industries.
• Excellent communication, leadership, and problem‑solving skills.
• Proven ability to manage multiple design tasks and meet deadlines.

What We Can Offer

At Mott MacDonald 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.