Principal Engineer – Data Centre Mechanical Engineer

Critical Systems | Data Centres

Lead the delivery of the world’s most advanced data centre projects

Cundall’s Critical Systems team is delivering some of the most complex and high-profile data centre developments globally. As our workload continues to grow, we are looking for an experienced Principal Mechanical Engineer to play a key role in leading technical delivery, shaping design solutions and supporting the continued growth of our data centre capability.

You will join a specialist team focused solely on data centres and mission critical environments. Our work ranges from hyperscale developments and advanced compute campuses through to retrofit upgrades, technical due diligence and the evolution of global client design standards.

This role is suited to someone with strong technical depth, a collaborative mindset and the ability to take ownership of complex engineering challenges within a client-focused environment.

As a Principal Engineer within our Critical Systems team, you will take a leading role in the delivery of complex mechanical design solutions across major data centre projects.

You will work closely with multidisciplinary teams, clients and stakeholders to develop robust, efficient and technically excellent designs, contributing across all project stages — from concept development through to detailed design and construction support.

This is a hands-on technical role with growing leadership responsibility. You will support the development of junior engineers, contribute to project planning and play a key role in maintaining the quality and consistency of design delivery.

You will also have the opportunity to engage directly with clients, helping to shape technical strategies and influence project outcomes across both regional and global programmes.

What you’ll be doing

In this role, you will:

• Lead the delivery of mechanical design solutions for data centre and mission critical projects.
• Prepare technical specifications, calculations, schedules and engineering reports.
• Develop coordinated design solutions as part of multidisciplinary project teams.
• Contribute to design reviews and provide technical guidance within your discipline.
• Support project planning, programme coordination and fee input where required.
• Participate in project meetings and engage with clients and stakeholders.
• Carry out site visits, inspections and surveys to inform design development.
• Collaborate with colleagues across regional and international teams.
• Support and mentor junior engineers, contributing to their technical development.
• Contribute to business development activities and wider team growth initiatives.

What we’re looking for

We are looking for a technically strong Mechanical Engineer with experience in data centre design and a desire to work on complex, high-value projects.

You will bring:

• A degree in Mechanical Engineering, Building Services Engineering or a related discipline.
• Experience in a consulting engineering environment, with a strong technical foundation.
• Proven ability to deliver coordinated design solutions as part of a multidisciplinary team.
• Experience in preparing design documentation, calculations and technical reports.
• Strong communication skills and the ability to work effectively with clients and project teams.
• A collaborative and proactive approach to problem solving.
• A commitment to quality and continuous improvement in design delivery.

Previous experience in the data centre sector is essential. You will be supported through structured training and mentoring to develop your expertise in this field.

Why join us?

This is an opportunity to work on some of the most technically challenging and fast-moving projects in the built environment, within a specialist data centre team recognised for its expertise and delivery capability.

You will be supported by experienced engineers and leaders across our global business, with access to structured development programmes and opportunities to grow your career within a rapidly expanding sector.

At Cundall, we combine technical excellence with a collaborative and supportive culture, giving our people the opportunity to take ownership, develop their expertise and contribute to projects that shape the future of critical infrastructure.

About Cundall

Cundall is an international, multi-disciplinary engineering consultancy delivering sustainable, practical and innovative design solutions.

Our Critical Systems team focuses exclusively on data centres and mission critical environments, supporting some of the world’s leading clients to deliver resilient, efficient and future-ready facilities across global markets.

We are known for combining technical excellence with a collaborative, client-focused approach — and for giving our people the opportunity to work on complex, meaningful projects that have real impact.

If you are an experienced data centre engineer looking for a role where you can lead major projects, develop people, influence clients and help build a new team, we would like to hear from you.

Job Description 

Your career at Cundall - Critical systems - Publications - Cundall

We know that to be the best at what we do we need a diverse workforce underpinned by an inclusive culture. Creating environments where everyone can find joy doing their best work is also great for everyone. That’s why we positively welcome applications from people of all backgrounds and identities, and encourage, support, and celebrate the diverse voices of our people.

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