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

Location: ME8, Lower Twydall, GB

Posted Date: 9/14/2025