About the Role We are seeking an experienced and technically strong Principal Mechanical Engineer to join a growing multidisciplinary team delivering mission-critical and data centre projects. You will play a key role in leading the mechanical design and technical strategy for complex data centre developments across the sector. This position is ideal for someone with a strong background in mechanical engineering for data centres and a desire to contribute to the development of standards, mentor junior engineers, and work closely with both internal teams and external clients to ensure technical excellence and project success. Key Responsibilities Act as the mechanical lead for data centre design projects, contributing expert knowledge throughout the full project lifecycle. Drive technical excellence across project deliverables, ensuring designs meet client expectations and sector-specific standards. Contribute to setting benchmarks, design guidelines, and quality standards for mechanical engineering within the data centre sector. Provide leadership and mentoring to mechanical teams, supporting knowledge transfer and development of emerging talent. Collaborate with multidisciplinary teams to ensure coordinated and consistent project delivery. Work directly with clients to understand their business drivers, organisational culture, and project goals. Monitor project performance, manage risks, and contribute to solutions that address design or delivery challenges. Maintain a proactive approach to industry trends and evolving technologies in the data centre and mission-critical sectors. Candidate Requirements Strong technical background in mechanical engineering for data centres and mission-critical environments. Proven track record delivering complex mechanical systems design on high-value projects. Excellent client-facing and communication skills, with the ability to build and maintain relationships at all levels. Thorough understanding of mechanical design principles, best practices, and regulatory requirements within data centre environments. Strong commercial awareness and experience managing project financials and resource planning. Experience collaborating within multi-disciplinary teams, including architecture, electrical, structural, and project management disciplines. Qualifications Degree qualified (or equivalent) in Mechanical Engineering or a relevant discipline. Chartered Engineer (CEng) or equivalent professional status. Strong digital competency and ability to work with collaborative design tools (e.g., Revit, BIM platforms). What’s on Offer Strategic role within a high-growth sector focused on data centre design and engineering. Opportunities to lead technically complex projects with leading technology clients. Supportive and collaborative team environment with global knowledge-sharing. Competitive compensation and benefits package. Flexible working options.