Senior Mechanical Project Engineer

ZipRecruiter; City Of London; On-site; GBP 65,000 - 85,000; Full time

Job summary

A prominent engineering consultancy is seeking a Senior Mechanical Engineer in London to lead medium-to-large scale projects in mechanical building services design. Suitable candidates will have 8-10 years of experience, strong project management skills, and must hold a recognised mechanical engineering qualification. This role offers the opportunity to work on critical UK defence projects and requires DV level security clearance.

Benefits

Professional growth through mentoring

Exposure to high-profile projects

Opportunity to influence critical infrastructure

Qualifications

• 8–10 years’ engineering experience in mechanical building services design.
• Proven project leadership/project management experience with multi-disciplinary teams.
• Knowledge of RIBA Stages 1–4A.

Responsibilities

• Lead delivery of mechanical building services designs from concept to construction.
• Act as Project Leader on medium-to-large projects, ensuring on-time, on-budget delivery.
• Coordinate multi-disciplinary teams.

Skills

Project leadership

Mechanical building services design

Strong communication skills

Education

Recognised mechanical engineering qualification

Job description

Overview

Job Description

Do you have 8–10 years’ experience in mechanical building services design, ideally across defence or complex commercial projects?

Have you successfully led multi-disciplinary engineering project teams, managing budgets, resources, and client relationships?

Are you looking to take on prestigious UK defence projects, where your work directly impacts critical infrastructure?

The Opportunity

Please note, DV level security clearance is essential for this role. Our client, a London-based engineering team are expanding their team to meet growing demand across UK defence projects. This is an exciting opportunity to join a global consultancy that prides itself on delivering excellent work, where every project matters.

As a Senior Mechanical Engineer, you’ll take ownership of medium-to-large scale projects, leading design from concept through to delivery. You’ll collaborate across multiple disciplines, drive technical excellence, and build long-term client partnerships that shape repeat success.

In return, you’ll gain exposure to high-profile defence projects, professional growth through mentoring and training opportunities, and the chance to be part of an organisation that values innovation, collaboration, and integrity.

Your duties and responsibilities

• Lead delivery of mechanical building services designs from concept to construction.
• Act as Project Leader on medium-to-large projects, ensuring on-time, on-budget delivery.
• Coordinate multi-disciplinary teams (mechanical, electrical, fire, hydraulics, and more).
• Review contractor submissions and oversee construction administration.
• Build and maintain strong client and stakeholder relationships.
• Mentor and support junior engineers, developing team capability.

You will have the following qualifications & experience

• A recognised mechanical engineering qualification
• 8–10 years’ engineering experience in mechanical building services design.
• Proven project leadership/project management experience with multi-disciplinary teams.
• Strong written and verbal communication skills and the ability to influence at all levels.
• Knowledge of RIBA Stages 1–4A.

It’s great if you also have the following

• Experience with defence sector or large-scale commercial projects.
• Familiarity with other disciplines (electrical, public health, fire protection).
• Experience mentoring or training junior engineers.