Senior Mechanical Design Engineer

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

Job summary

A leading engineering consultancy in Cardiff is seeking a Senior Mechanical Design Engineer to deliver diverse mechanical engineering solutions across various sectors. This role includes leading projects, mentoring junior staff, and ensuring compliance with UK standards. Competitive salary and flexible working arrangements are offered.

Benefits

25 days holiday + bank holidays

Pension scheme

Flexible & hybrid working options

Qualifications

• Minimum 6 years' experience in mechanical building services design consultancy.
• Strong technical knowledge of heating, ventilation, cooling, and renewable technologies.
• Chartered status (e.g., CEng, MCIBSE) preferred but not essential.

Responsibilities

• Lead mechanical design projects from concept to completion.
• Prepare and review calculations and design documentation.
• Mentor and support junior engineers.

Skills

HVAC systems knowledge

Technical communication

Interpersonal skills

Education

Degree in Mechanical Engineering or Building Services Engineering

Tools

AutoCAD

Revit

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 options

Role Overview

We are seeking a Senior Mechanical Design Engineer to join a busy and growing building services consultancy in Cardiff. The successful candidate will be responsible for delivering mechanical engineering design solutions across a diverse range of projects including commercial, residential, healthcare, education, and industrial sectors.

This is a great opportunity to join a collaborative team where you will have autonomy over your work, lead 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 drawings and BIM / Revit models to a high standard


• 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 relevant UK standards and regulations (e.g., CIBSE, Building Regulations, Part L)


• Keep up to date with industry best practices and emerging technologies


• Contribute to business development and client relationship management

Skills & Experience

• Degree in Mechanical Engineering or Building Services Engineering (BEng, MEng or equivalent)


• Typically 6+ years’ experience in mechanical building services design consultancy


• Strong technical knowledge of HVAC systems, heating, ventilation, cooling, and renewable technologies


• Experience with design software including AutoCAD, Revit, and relevant calculation tools


• Proven ability to manage projects and lead design teams


• Excellent communication and interpersonal skills


• Understanding of UK building regulations, CIBSE guides, and sustainability principles


• Chartered status (e.g., CEng, MCIBSE) is preferred but not essential

Why Join?

• Work on varied and challenging projects with high-profile clients


• Opportunity to take on leadership responsibilities and influence project outcomes


• Collaborative, supportive working environment with flexible working options


• Access to professional development and training programs


• Competitive salary and benefits package

Ready to advance your career in mechanical design?

Apply now to join a thriving consultancy committed to technical excellence and innovation.