Lead Mechanical Design Engineer
Lead Mechanical Design Engineer
Contract Type:
Contractor
Location:
Guildford - Surrey
Industry:
Design & Development
Contact Name:
Beverley Reavill
Contact Email:
beverley.reavill@professional-technical.com
Contact Phone:
01283 499820
Date Published:
09-Nov-2026
A newly created contract is available for a Lead Mechanical Design Engineer. This is working for a progressive consultancy firm in the wastewater treatment sector. The contract is offering a minimum 12-month contract, working outside IR35, offering a competitive daily rate of £500 per day with full remote working. Applicants will only be considered if they have a career within the wastewater treatment sector.
Job Purpose:
The Lead Mechanical Design Engineer will lead the multidisciplinary design and delivery of wastewater treatment and infrastructure projects, taking responsibility for mechanical design and coordination across civil, electrical, and ICA disciplines. The role ensures robust, efficient, and compliant engineering solutions that meet client, regulatory, and sustainability requirements.
Key Responsibilities of the Lead Mechanical Design Engineer:
- Lead the design and delivery of wastewater treatment projects from concept to detailed design and construction support.
- Act as the technical authority for mechanical engineering while providing coordination oversight for civil, electrical, and ICA disciplines.
- Ensure the design aligns with client specifications, statutory requirements, and industry best practices.
- Oversee the production of design deliverables, including P&IDs, general arrangements, calculations, specifications, and data sheets.
- Support the Engineering Manager and Project Manager in programme, budget, and risk management.
- Liaise with contractors and suppliers during design and construction phases to ensure technical integrity.
- Manage and integrate the work of mechanical, civil, electrical, and ICA designers to ensure fully coordinated designs.
- Chair design coordination meetings and design reviews, resolving technical interfaces across disciplines.
- Provide guidance and leadership to discipline leads to maintain consistency, quality, and efficiency across the project.
Requirements:
- Minimum degree qualified in Mechanical Engineering or equivalent
- Chartered Engineer (Chartered Engineer (CEng) status or working towards it (IMechE, IET, or ICE).
- Experienced Lead Mechanical Design Engineer with extensive experience in the design and delivery of wastewater treatment projects.
- Working within AMP8 Frameworks
- Proven ability to lead multidisciplinary design teams (MEICA, CIVIL).
- Excellent stakeholder communication and leadership skills.

