Principal Mechanical Engineer

Responsibilities

• Lead mechanical design delivery on multidisciplinary water/wastewater treatment projects across the full design lifecycle
• Act as mechanical technical lead owning design strategy, key decisions, interfaces, risks, and quality of deliverables
• Review and approve mechanical calculations, specifications, datasheets, reports, P&IDs, layouts, and drawings
• Lead equipment selection for pumps, pipework, valves, tanks, and treatment equipment
• Drive multidisciplinary coordination across Process, EICA, civil, structural, and MEP teams
• Promote lean and digitally enabled delivery through BIM/3D coordination and hydraulic analysis
• Mentor and manage engineers, supporting recruitment and chartership progression

Requirements

• BEng/MEng in Mechanical Engineering
• Chartered or Incorporated Engineer status (e.g., IMechE)
• 8–10+ years of mechanical engineering design experience
• Background in water, wastewater, biosolids, or oil & gas
• Expertise in mechanical treatment/process systems and equipment selection
• Strong understanding of UK water industry standards and CDM 2015
• Experience in multidisciplinary coordination and client-facing communication
• Right to work in the UK

Preferred Qualifications

• Deep experience in wastewater treatment, clean water, or sludge/bioresources
• Experience delivering AMP8, WINEP, or D&B projects
• Experience developing mechanical design standards or digital workflows

Benefits

• Highly competitive leadership-level reward package
• Hybrid and flexible working
• 26+ days annual leave plus bank holidays
• Professional development and chartership support
• Global mobility opportunities

About the Company

Egis is a global leader in green infrastructure, designing and delivering intelligent, sustainable infrastructure to address climate challenges. With over 23,500 experts across 100+ countries, Egis focuses on sustainable mobility, energy, and the built environment.