Principal Mechanical Engineer

Are you a Mechanical Engineer looking to take the next step in your career? Would you like to get involved with delivering some of the world’s most exciting projects and join a dynamic, growing team who are at the forefront of sustainable design? If so, we want you to join our Building Services team in London!

Based in our office a stone’s throw from Borough Market in the heart of Southwark’s thriving Bankside, our welcoming and diverse team are working on some of the most prestigious and innovative projects in the UK and across the world. From sustainability focused offices and commercial premises to cutting‑edge healthcare facilities and from award‑winning retail developments to major new residential communities, you’ll have the opportunity to play a major role in delivering schemes across a huge range of sectors.

An opportunity has arisen within Waterman Building Services London, for the position of Principal Mechanical Engineer. Working as a key member of the team, you will be provided with the autonomy to design Mechanical services in many sectors of the industry and be client facing, representing the Company.

• Leading multidisciplinary projects from start to completion.
• Managing interaction with clients and design team members.
• Overseeing technical delivery and ensuring projects meet quality, compliance, and performance standards.
• Providing mentorship and technical guidance to junior engineers.
• Driving innovation and best practices across the mechanical/electrical discipline.
• Contributing to recruitment, retention, and development of top engineering talent.
• Representing Waterman at industry events, building and maintaining relationships with industry colleagues.

• Significant experience in mechanical building services design across regulated sectors.
• Proven ability to influence engineering outcomes and lead design teams.
• Strong proficiency with MagiCAD, Relux, Amtech/EOM, AutoCAD and Revit.
• Excellent interpersonal and communication skills, with confidence to engage clients and stakeholders at all levels.
• Degree in mechanical/electrical engineering or a closely related discipline.
• Chartered status or working towards it.
• A proactive, collaborative mindset and a passion for delivering technically excellent, sustainable designs.

• An opportunity to join a multi‑disciplinary team in a leading consultancy.
• Competitive salary and benefits package.
• Excellent future career opportunities.
• 26 days holiday per year, rising to 31 days with loyalty days, plus bank holidays.
• Hybrid working arrangements.
• Fantastic training and development culture.
• Access to mentoring support from industry experts.
• Opportunity to play a key role in exciting and varied projects.
• Opportunity to be client facing and the chance to get involved with business development and marketing activities.
• Fast‑tracked career progression for the right candidates.

Waterman Group is a multidisciplinary consultancy providing private and public sector clients with sustainable solutions to meet the planning, engineering design and project delivery needs of the property, infrastructure, environment, and energy markets. At Waterman we are committed to our people, our communities, and the planet. We are transforming our business and offering our most exciting opportunities yet so now is the time to join us.

We are a Disability Confident organisation, committed to an active Inclusion, Diversity and Equal Opportunities Policy starting with our recruitment and selection process.