Mechanical Design Engineer – Intermediate to Senior/ Principal in London
Mechanical Design Engineer – Intermediate to Senior/ Principal

Mechanical Design Engineer – Intermediate to Senior/ Principal in London

London Full-Time 30000 - 48000 £ / year (est.) Home office (partial)
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At a Glance

  • Tasks: Design innovative mechanical systems for high-quality buildings and collaborate with diverse teams.
  • Company: Established consultancy focused on sustainable building services in a supportive environment.
  • Benefits: Competitive salary, hybrid working, flexible hours, and long-term career development.
  • Why this job: Join a team that values quality engineering and offers real ownership of your projects.
  • Qualifications: Experience in mechanical design and strong communication skills are essential.
  • Other info: Enjoy a professional culture with clear progression routes and low staff turnover.

The predicted salary is between 30000 - 48000 £ per year.

Location: Cheshire – Warrington (Office Based / Hybrid)

Duration: Permanent

Employment Type: Full-Time, Permanent

Salary: £35,000 - £60,000 (depending on experience)

Our client is a well-established building services design consultancy, expanding its Mechanical Engineering team in Warrington and looking for experienced designers ranging from intermediate to senior or principal levels. This team is passionate about delivering comfortable, efficient and sustainable mechanical systems that underpin high-quality built environments.

The Opportunity

You will be involved in the full lifecycle of mechanical building services design, working closely with electrical, public health and BIM teams to deliver coordinated, efficient solutions.

Typical responsibilities include:

  • Mechanical design of HVAC, ventilation, heating and cooling systems
  • Producing calculations, reports, specifications and technical drawings
  • Developing energy-efficient, practical designs aligned with project objectives
  • Coordinating designs across disciplines using BIM-led workflows
  • Supporting and mentoring junior engineers (for senior/principal level)
  • Contributing to design reviews and client discussions

What They’re Looking For

  • Proven experience in mechanical building services design within a consultancy or design‐led environment
  • Solid understanding of UK building regulations, standards and best practice
  • Confidence in managing your own design workload and contributing to team delivery
  • Strong communication skills and a collaborative mindset
  • Experience with Revit/BIM environments is highly desirable

Why This Role Stands Out

  • Projects are properly resourced and well planned, no constant firefighting
  • Strong emphasis on engineering quality and sustainability, not just delivery speed
  • Engineers are trusted, listened to, and given real ownership of their work
  • Clear progression routes for those stepping into senior or principal positions
  • A professional, down‐to‐earth culture with low staff turnover

What’s On Offer

  • Competitive salary depending on experience and level
  • Hybrid working and flexible hours
  • Long‐term career development rather than short‐term promotion promises

If you’re a Mechanical Design Engineer looking for a role where good engineering is genuinely valued, I’d be happy to talk confidentially.

Mechanical Design Engineer – Intermediate to Senior/ Principal in London employer: Parkinson Gray Associates

Our client is a leading building services design consultancy located in Warrington, offering a supportive and collaborative work environment where engineers are empowered to take ownership of their projects. With a strong focus on quality and sustainability, employees benefit from clear career progression opportunities, hybrid working arrangements, and a culture that values professional development and teamwork. This is an excellent opportunity for Mechanical Design Engineers seeking meaningful work in a well-resourced and professionally rewarding setting.
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Contact Detail:

Parkinson Gray Associates Recruiting Team

StudySmarter Expert Advice 🤫

We think this is how you could land Mechanical Design Engineer – Intermediate to Senior/ Principal in London

Network Like a Pro

Get out there and connect with people in the industry! Attend events, join online forums, and don’t be shy about reaching out on LinkedIn. We all know that sometimes it’s not just what you know, but who you know that can land you that dream job.

Show Off Your Skills

When you get the chance to chat with potential employers, make sure to highlight your experience with HVAC systems and BIM workflows. We want to see how you can contribute to their projects, so share specific examples of your past work that align with their needs.

Prepare for Interviews

Do your homework before interviews! Understand the company’s projects and values, especially their focus on sustainability and quality. We recommend practising common interview questions and preparing some thoughtful questions of your own to show you’re genuinely interested.

Apply Through Our Website

Don’t forget to apply through our website! It’s the best way to ensure your application gets seen by the right people. Plus, we love seeing candidates who take the initiative to engage directly with us.

We think you need these skills to ace Mechanical Design Engineer – Intermediate to Senior/ Principal in London

Mechanical Design
HVAC Systems
Ventilation Systems
Heating and Cooling Systems
Calculations and Reporting
Technical Drawings
Energy-Efficient Design
BIM Coordination
Revit
UK Building Regulations
Communication Skills
Team Collaboration
Mentoring
Project Management

Some tips for your application 🫡

Tailor Your CV: Make sure your CV reflects the skills and experiences that match the Mechanical Design Engineer role. Highlight your experience with HVAC systems, BIM workflows, and any relevant projects you've worked on.

Craft a Compelling Cover Letter: Your cover letter is your chance to shine! Use it to explain why you're passionate about mechanical design and how your values align with our focus on sustainability and quality engineering.

Showcase Your Technical Skills: Don’t forget to mention your proficiency in Revit or any other relevant software. We want to see how you can contribute to our team’s success right from the get-go!

Apply Through Our Website: We encourage you to apply directly through our website. It’s the best way for us to receive your application and ensures you’re considered for the role without any hiccups!

How to prepare for a job interview at Parkinson Gray Associates

Know Your Stuff

Make sure you brush up on your mechanical design knowledge, especially around HVAC, ventilation, and building regulations. Be ready to discuss specific projects you've worked on and how they align with the role's requirements.

Show Off Your Team Spirit

This role involves a lot of collaboration, so be prepared to talk about your experience working with other disciplines like electrical and public health teams. Share examples of how you've successfully coordinated designs and contributed to team efforts.

Get Familiar with BIM

Since experience with Revit/BIM environments is highly desirable, make sure you can speak confidently about your experience with these tools. If you’ve used them in past projects, highlight how they helped improve efficiency and design quality.

Ask Smart Questions

Prepare thoughtful questions that show your interest in the company’s approach to sustainability and engineering quality. This not only demonstrates your enthusiasm but also helps you gauge if the company culture aligns with your values.

Mechanical Design Engineer – Intermediate to Senior/ Principal in London
Parkinson Gray Associates
Location: London

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