Principal Mechanical Engineer – Water​/Wastewater

This Principal Mechanical Engineer - Water / Wastewater position focuses on driving multidisciplinary coordination across Process, EICA, civil/structural, architectural, MEP, construction and operations teams.

Our commitment is translated in the work carried out by our Egis Foundation, which funds concrete actions to address the climate crisis and is focused on educational and social initiatives that will help in the responsible and sustainable shift towards a sustainable world.

• Lead mechanical design delivery on multidisciplinary water/wastewater treatment projects across the full design lifecycle
• Lead mechanical input to optioneering, value engineering, design reviews, HAZOP/SWIFT, constructability, maintainability and com
• Review and approve mechanical calculations, specifications, datasheets, reports, P&IDs, layouts, schedules, drawings and supplier/contractor sub
• Provide technical assurance and support project managers with technical risk, scope, resourcing, programme and change control
• As part of our team, you’ll have a unique opportunity to use your

• Work model:
  Hybrid

• Please note that you must have the right to work in the UK to be considered for this position
• Background must be from water, wastewater, biosolids/bioresources or oil & gas
• Typically 8–10+ years’ relevant mechanical engineering design experience
• Strong understanding of UK water industry standards, CDM 2015, safety-by-design, regulatory drivers and common delivery models
• Top Employers 2025 - Egis recognised across four continents for excellence in HR practices, having been awarded the prestigious Top Employer 2025 certification
• Applying modelling, automation, BIM/3D coordination, data analysis or standardised workflows
• You’ll need experience delivering AMP8, WINEP, SRO, D&B, framework, alliance or contractor-led projects

• 26+ days annual leave plus bank holidays
• Flexible working
• chartership support & global mobility