Mechanical Design Engineer
Mechanical Design Engineer – Building Services
South East (Office-Based with Project Engagement as Required)
£50,000 – £60,000 per annum + Benefits
Full-time, Permanent
Low carbon focus. Design ownership. Projects with real impact.
A well-established and expanding M&E contractor is seeking a Mechanical Design Engineer to join its growing in-house design team. Working closely with the Design Manager, you’ll be responsible for producing technically sound and energy-efficient mechanical designs across a range of education, commercial, residential, and mixed-use developments.
You’ll play a hands-on role in the design process from Stage 3/4 onwards—creating detailed layouts, calculations, specifications, and modelling reports using industry-standard software. This role suits a technically capable engineer who enjoys responsibility, is passionate about low-carbon design, and is confident managing their own workload within a collaborative team.
Why this opportunity
*
Structured role within a growing in-house design department
*
Wide range of live and upcoming projects across multiple sectors
*
Opportunity to take ownership of mechanical design output from early surveys through to delivery
*
Competitive salary, ongoing training, and long-term development potential
Key responsibilities
*
Produce mechanical designs, specifications, calculations and schedules in line with project requirements
*
Review contract documentation, Stage 4/5 requirements and ensure technical compliance
*
Support internal and external coordination with project teams, consultants and clients
*
Monitor drawing production and review for technical accuracy and consistency prior to issue
*
Attend site surveys, capturing data using Lidar scanning and converting into usable design input
*
Contribute to energy modelling assessments and sustainability-driven design documentation
*
Respond to design RFIs and maintain clear records of revisions and decision-making
*
Support the wider team in ensuring design work is delivered on time and to high quality standards
What we’re looking for
*
Degree (or equivalent) in Building Services Engineering or Mechanical Engineering
*
Demonstrable experience in mechanical design within the building services sector
*
Proficiency in relevant software tools such as Revit, Hevacomp, and AutoCAD
*
Good understanding of current Building Regulations and sustainable design principles
*
Passion for low-carbon, energy-efficient system design
*
Ability to plan and manage multiple projects concurrently
*
Strong written and verbal communication skills
*
Full UK driving licence
The package
*
£50,000 – £60,000 per annum depending on experience
*
Company pension scheme
*
21 days annual leave plus bank holidays
*
Ongoing training and development opportunities
*
Annual career progression reviews
*
Supportive design team and structured leadership
If you’re a mechanically focused design engineer looking to take the next step in your career—and you want to do so in a team that values sustainability, technical quality and clear communication—this could be the right opportunity.
Apply today to begin a confidential conversation