Senior Mechanical Engineer

Millbank Holdings Limited; Preston; Hybrid; GBP 80,000 - 100,000; Full time

Job summary

A leading engineering firm is seeking an experienced Mechanical Design Engineer to support projects in the water sector, particularly for clean and wastewater infrastructure. The role involves detailed design calculations, documentation, and collaboration with various teams, ensuring compliance with standards. This contract position offers a competitive rate and a hybrid working model, typically involving 1-2 days per week in the Preston office.

Qualifications

• Experience working within the UK water sector (Yorkshire Water, United Utilities, or similar frameworks).
• Strong technical background in water/wastewater systems.
• Proven ability to check design calculations.

Responsibilities

• Undertake detailed mechanical design calculations.
• Check and review design deliverables to ensure quality.
• Produce and review design documentation.

Skills

Mechanical design calculations

Design of water/wastewater treatment processes

Preparation of equipment specifications

Coordination with subcontractors

Education

Degree or HND/HNC in Mechanical Engineering

Job description

The Opportunity

We are seeking an experienced Mechanical Design Engineer to join our water sector design team, supporting projects across the Yorkshire Water and United Utilities frameworks. This role will focus on the delivery of mechanical design solutions for clean and wastewater infrastructure, ensuring technical excellence, compliance, and coordination with multiple stakeholders.

The Role

Duration: 12 months (contract)
Rate: £50–£52 per hour Ltd (subject to IR35 assessment)
Hours: 40 hours per week
Working Pattern: Hybrid – typically 1–2 days per week in the Preston office (remainder remote)

Your duties and responsibilities

• Undertake detailed mechanical design calculations for water and wastewater treatment processes.
• Check and review design deliverables produced by others to ensure accuracy, compliance, and quality.
• Prepare and maintain equipment specifications and schedules, ensuring correct selection and integration of mechanical plant and equipment.
• Coordinate and manage the design input of subcontractors and suppliers, reviewing and checking their deliverables.
• Produce and review design documentation, including reports, specifications, and drawings, in accordance with client and industry standards.
• Ensure designs comply with relevant standards, regulations, and health & safety requirements.
• Collaborate with multidisciplinary design teams, project managers, and site delivery teams to achieve successful project outcomes.

You will have the following qualifications & experience

• Degree or HND/HNC in Mechanical Engineering or a related discipline.
• Experience working within the UK water sector (Yorkshire Water, United Utilities, or similar frameworks).
• Strong technical background in the design of water/wastewater treatment processes and pumping systems.
• Proven ability to undertake and check design calculations.
• Experience in preparing equipment specifications and schedules.
• Familiarity with coordinating and reviewing subcontractor/supplier design deliverables.
• Knowledge of relevant codes, standards, and health & safety regulations.
• Chartered Engineer status (or working towards) would be advantageous.

Get in touch now

If you’re on the lookout for a new opportunity and think you have the experience and skills we are seeking, apply now or contact Stuart Cooper via LinkedIn.

Millbank Holdings Ltd is an equal opportunities employer committed to creating an inclusive and diverse workforce. We welcome applications from all suitably qualified individuals, regardless of background, and encourage candidates from underrepresented groups to apply.

We are proud to be a member of the Disability Confident Scheme, and we are committed to ensuring an accessible and supportive recruitment process for everyone. If you require any adjustments at any stage, please let us know and we’ll do our best to accommodate.

Millbank operates as both an Employment Agency and an Employment Business.