Senior Mechanical Design Engineer

Pertemps; Cardiff; Hybrid; GBP 80,000 - 100,000; Full time

Job summary

A leading building services consultancy in Cardiff seeks a Senior Mechanical Design Engineer to lead design projects in diverse sectors including commercial and healthcare. You will manage project deliverables, mentor junior engineers, and ensure compliance with UK standards. This role offers a competitive salary, flexible working, and a collaborative environment. Excellent candidates will possess a degree in Mechanical or Building Services Engineering and 6+ years of relevant experience, along with strong knowledge in HVAC systems and project management.

Benefits

25 days holiday + bank holidays

Pension

Flexible & hybrid working

Professional development and training programs

Competitive salary and benefits package

Qualifications

• 6+ years' experience in mechanical building services consultancy is preferred.
• Strong technical knowledge of HVAC systems and sustainable design principles.
• Chartered status (CEng, MCIBSE) is preferred but not essential.

Responsibilities

• Lead mechanical design and engineering on projects from conceptualization to completion.
• Prepare and review detailed calculations, specifications, and design documentation.
• Produce high-quality drawings and BIM/Revit models.
• Mentor and support junior engineers.

Skills

HVAC systems knowledge

Interpersonal skills

Project management

Communication skills

Technical knowledge of renewable technologies

Education

BEng or MEng in Mechanical or Building Services Engineering

Tools

AutoCAD

Revit

Mechanical calculation tools

Job description

Senior Mechanical Design Engineer – Building Services

Location: Cardiff

Salary: Competitive (dependent on experience)

Benefits: 25 days holiday + bank holidays, pension, flexible & hybrid working

Role Overview

We are seeking a Senior Mechanical Design Engineer to join a busy and growing building services consultancy in Cardiff. This is an excellent opportunity to lead mechanical engineering design projects across commercial, residential, healthcare, education, and industrial sectors. As a Senior Mechanical Design Engineer, you’ll have autonomy over your work, manage multi-disciplinary projects, mentor junior engineers, and help shape the technical direction of the business.

Key Responsibilities

• Lead mechanical design and engineering on projects from concept through to completion
• Prepare and review detailed calculations, specifications, and design documentation
• Produce high-quality drawings and BIM/Revit models
• Manage project deliverables including design risk assessments, client liaison, and coordination with multi-disciplinary teams
• Mentor and support junior and intermediate engineers
• Ensure designs comply with UK standards and regulations (CIBSE, Building Regulations, Part L)
• Stay updated with industry best practices, emerging technologies, and sustainability trends
• Contribute to business development and maintain strong client relationships

Skills & Experience

• Degree in Mechanical or Building Services Engineering (BEng, MEng, or equivalent)
• Typically 6+ years’ experience in mechanical building services consultancy
• Strong technical knowledge of HVAC systems, heating, ventilation, cooling, and renewable technologies
• Proficient with AutoCAD, Revit, and mechanical calculation tools
• Proven ability to manage projects and lead design teams
• Excellent communication and interpersonal skills
• Understanding of UK building regulations, CIBSE guides, and sustainable design principles
• Chartered status (CEng, MCIBSE) preferred but not essential

Why Join?

• Work on varied, challenging projects with high-profile clients
• Take leadership responsibilities and influence project outcomes
• Collaborative, supportive environment with flexible and hybrid working options
• Access to professional development and training programs
• Competitive salary and benefits package

If you’re a Senior Mechanical Design Engineer ready to advance your career and work on technically challenging projects in Cardiff, apply now for a confidential discussion.