PSR Solutions are seeking an experienced Principal Mechanical Engineer to support a major infrastructure project in North West London.

This is a long-term contract opportunity working on a complex, multidisciplinary scheme within a fast-paced project environment.

Role Overview
You will lead mechanical engineering activities from design through to delivery, ensuring systems are compliant, buildable, and delivered in line with programme and quality expectations.

Key Responsibilities

Lead and review mechanical design to ensure compliance and buildability
Deliver mechanical solutions across building services and infrastructure systems
Support design assurance, risk assessments, and technical reviews
Contribute to safety studies (HAZID, HAZOP)
Manage technical documentation and coordinate with design teams
Work with site teams to resolve design and installation issues
Attend testing and commissioning activities
Liaise with commercial and ...