(Associate) Technical Director - Mechanical Services

Arcadis is the world's leading company delivering sustainable design, engineering, and consultancy solutions for natural and built assets.

We are more than 36,000 people, in over 70 countries, dedicated to improving quality of life. Everyone has an important role to play. With the power of many curious minds, together we can solve the world’s most complex challenges and deliver more impact together.

As an Associate Technical Director (Mechanical) Building Services Engineer, you will provide technical leadership on complex building services projects within the railway and infrastructure sectors. You will deliver high-quality mechanical design solutions, lead multidisciplinary teams, manage client relationships, and drive innovation to support sustainable, safe, and efficient asset delivery across the project lifecycle.

• Lead the technical delivery of mechanical and building services engineering projects, ensuring excellence in design, installation, and commissioning.
• Manage and mentor multidisciplinary teams, fostering professional growth and high performance.
• Build and maintain strong relationships with clients, stakeholders, and contractors, promoting Arcadis’ services and securing new business opportunities.
• Oversee project planning, resourcing, budgeting, and risk management to deliver projects on time, within budget, and to required quality and safety standards.
• Champion sustainability initiatives including BREEAM compliance and integration of renewable energy systems.
• Provide technical expertise in ventilation, smoke management, HVAC, public health systems, and sustainable technologies relevant to railway environments.
• Drive continuous improvement through standardisation, automation, and adoption of digital tools such as 3D BIM and common data environments (e.g., ProjectWise).
• Promote a positive SHE culture by leading safety initiatives and embedding best practices across teams.
• Contribute to business development through bid preparation, client presentations, and networking.

• Degree in Mechanical or Building Services Engineering (BEng/BSc minimum; MEng/MSc preferred).
• Chartered Engineer (CEng) status or equivalent professional recognition.
• Proven track record delivering mechanical/building services projects within railway, infrastructure, or transport sectors.
• Strong technical knowledge of mechanical design, including tunnel ventilation, smoke management, HVAC systems, and commissioning processes.
• Experience with sustainability standards such as BREEAM and sustainable design principles.
• Excellent project and people management skills with experience leading multidisciplinary teams.
• Strong commercial acumen, including experience managing budgets, proposals, and client relationships.
• Proficient in digital delivery environments such as BIM (3D modelling), common data environments (ProjectWise), and other engineering software.
• Excellent communication skills with the ability to engage and influence senior clients and project stakeholders.
• Comfortable working in a dynamic, multi-project environment with the ability to prioritise and manage competing demands.
• Willingness to travel within the UK and internationally as required.

Why Arcadis?

We can only achieve our goals when everyone is empowered to be their best. We believe everyone's contribution matters. It’s why we are pioneering a skills-based approach, where you can harness your unique experience and expertise to carve your career path and maximize the impact we can make together.

You’ll do meaningful work, and no matter what role, you’ll be helping to deliver sustainable solutions for a more prosperous planet. Make your mark, on your career, your colleagues, your clients, your life and the world around you.

Together, we can create a lasting legacy.

Join Arcadis. Create a Legacy.

Our Commitment to Equality, Diversity, Inclusion & Belonging

We want you to be able to bring your best self to work every day which is why we take equality and inclusion seriously and hold ourselves to account for our actions. Our ambition is to be an employer of choice and provide a great place to work for all our people. We believe that by working together diverse people with different experiences develop the most innovative ideas. Equality, diversity and inclusion is at the heart of how we improve quality of life and we work closely with our people across six ED&I Workstreams: Age, Disability, Faith, Gender, LGBT+ and Race. A diverse and skilled workforce is essential to our success.

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