Mechanical Design Engineer

Thomas Gray Ltd

Temporary Contract – Intermediate Mechanical Design Engineer

A temporary opportunity is available for an Intermediate Mechanical Design Engineer to support the delivery of major new-build projects across London and the South East.

This contract role will focus on the design and coordination of large-scale residential and mixed-use developments, working closely with senior engineers to ensure high-quality technical delivery across multiple live schemes.

Project Exposure

Current projects include:

* Large-scale new-build residential developments

* Major mixed-use schemes

* High-value, technically complex projects across London and the South East

These schemes provide strong technical challenge and exposure to substantial urban developments.

Key Responsibilities

* Assist in the design of mechanical building services systems including HVAC, public health systems, and associated plant

* Produce mechanical design calculations, specifications, and technical reports

* Develop and coordinate detailed drawings and BIM models

* Work collaboratively with electrical engineers, architects, structural engineers, and contractors

* Attend design meetings and site visits as required

* Ensure compliance with UK Building Regulations and relevant industry standards

* Support senior engineers in delivering projects to programme and budget

* Maintain high standards of technical accuracy and documentation

Technical Requirements

Applicants must demonstrate:

* Experience in mechanical building services design within a consultancy environment

* Exposure to new-build residential or mixed-use developments (desirable)

* Proficiency in Revit (MEP)

* Strong working knowledge of AutoCAD

* Solid understanding of HVAC design principles, including heat loss/gain calculations and ventilation strategies

* Knowledge of UK Building Regulations and CIBSE guidance

* Ability to produce calculations and technical documentation with appropriate supervision

A degree in Building Services Engineering, Mechanical Engineering, or a related discipline is required. Progress toward IEng or CEng accreditation would be advantageous.

Role Overview

This temporary position offers the opportunity to contribute to technically demanding projects within a professional and collaborative engineering environment. The role would suit an intermediate-level engineer capable of supporting complex project delivery and maintaining strong technical standards throughout the design process.

Contract duration and rate negotiable depending on experience.

Ref: 4246JR