Senior Mechanical Design Engineer

Senior Mechanical Design Engineer focuses on leading mechanical engineering design activities from feasibility through to commissioning on clean water infrastructure projects.

What the role involves

• Leading mechanical engineering design activities from feasibility through to commissioning on clean water infrastructure projects.
• Review detailed mechanical designs, calculations, specifications, reports and drawings for treatment plant assets, pumped systems, pipework and chemical dosing equipment.
• Carry out and validate hydraulic calculations, including pump sizing, system curves, head loss assessments and surge considerations.
• Ensure design outputs comply with client standards, WIMES, CDM requirements and relevant industry legislation.
• Coordinating with multidisciplinary teams including process, civil, electrical and MEICA disciplines.
• Undertake site surveys, inspections, testing and commissioning support.

Skills and requirements

• HNC/HND or degree in mechanical engineering or equivalent.
• Demonstrated experience delivering mechanical design within water or utilities projects, ideally including treatment.
• Strong capability in producing and reviewing mechanical calculations, specifications and technical reports to senior‑engineer level.
• Deliver high‑quality outputs across multiple live projects.

Confirmed role details

• Maidstone, Kent (flexible hybrid).
• Job type: Long‑term Contract (Outside IR35).
• This client‑side position covers the full project lifecycle including feasibility, optioneering, detailed design, construction and commissioning.

Candidate fit

• technical judgement, safe working habits, careful diagnostics, and practical problem-solving

Additional role context

• Senior Mechanical Design Engineer - Water AMP8.