Lead Mechanical Engineer – Water Infrastructure (Hybrid)

MEPJOBS UK; Greater London; Hybrid; GBP 85,000 - 110,000; Full time

Benefits offered by this job

Hybrid and flexible working

26+ days annual leave

Professional development & chartership

Global mobility

Top Employer certification

Job summary

Egis is expanding its UK Water team and seeks a Lead Mechanical Engineer to drive design for major water and wastewater projects across the UK. You will work in a collaborative, multidisciplinary environment to deliver technically robust and sustainable treatment solutions.

The role is hybrid with London, Bristol, and other UK sites, offering rapid progression, visibility, and a chance to shape the mechanical capability within a fast-growing group.

Qualifications

• Bachelor-level degree in mechanical engineering or equivalent.
• Chartered or Incorporated Engineer status with a relevant institution (IMechE).
• Typically 7-10+ years of mechanical design experience in water/wastewater sectors.
• Experience leading multidisciplinary mechanical design teams on complex projects.
• Strong understanding of UK water industry standards and CDM 2015.

Responsibilities

• Lead mechanical design delivery on water/wastewater projects across the full design lifecycle.
• Act as mechanical technical lead, owning design strategy and key decisions.
• Review and approve C&Ds, P&IDs, layouts, and supplier submissions.
• Lead equipment selection for pumps, pipework, valves, tanks, and process systems.
• Contribute to optioneering, value engineering, design reviews, and constructability.
• Coordinate multidisciplinary interfaces across Process, EICA, civil/structural, and MEP.
• Promote standardised tools, BIM/3D coordination, and data-driven design.
• Provide technical assurance and support project managers on risk and change control.
• Mentor engineers and support chartership progression.
• Contribute to bids, client engagement, and growth of the mechanical capability.

Skills

Mechanical design

Water sector

Pumps & piping

Leadership

Client-facing

Digital mindset

Mentoring engineers

Problem solving

Interface coordination

Education

BEng/MEng in Mechanical Engineering

Chartered/Incorporated Engineer (IMechE)

Tools

BIM/3D coordination

Hydraulic analysis

Data-led design

Job description

Egis is expanding its UK Water team and seeks a Lead Mechanical Engineer to drive design for major water and wastewater projects across the UK. You will work in a collaborative, multidisciplinary environment to deliver technically robust and sustainable treatment solutions.

The role is hybrid with London, Bristol, and other UK sites, offering rapid progression, visibility, and a chance to shape the mechanical capability within a fast-growing group.