Senior​/Principal Mechanical Engineer – Science and Research

About the role

We have a brand-new opportunity for a Senior or Principal Mechanical Engineer to join our Science & Research team based in our London office.

As a Senior or Principal Engineer in the Science & Research team you will lead and deliver mechanical designs for a wide range of science and research projects of varying scales and complexities. You will work within multidisciplinary project teams to produce robust, safe, efficient and innovative solutions that meet client briefs, regulatory standards and the specific needs of laboratory and research environments.

A key part of the role is developing and mentoring a technically excellent, collaborative team.

• Be responsible for the day‑to‑day technical delivery of the electrical design services for multi‑disciplinary projects across several building sectors.
• Lead the development of initial strategic concepts for projects ensuring solutions are appropriate for the brief and regulatory standards.
• Interact regularly with internal and external stakeholders, ensuring a communicative, collaborative and timely approach to delivery. This is a client‑facing role, so you will be attending project meetings and disseminating/translating the brief within the project team.
• Work with the team leader to help monitor fee expenditure, resources and work delivered.
• Mentor and support our ‘next‑gen’ professionals, including apprentices and graduates.

• Proven experience as a Mechanical Engineer (or closely related role) with a strong track record delivering complex projects – ideally including science, research or laboratory facilities where safety‑critical and highly reliable mechanical systems are required.
• Demonstrable experience of modern technical delivery processes and digital design tools, including BIM workflows and Revit MEP. Familiarity with CFD, IES or other simulation tools is advantageous.
• Hands‑on experience specifying, designing or commissioning specialist systems commonly used in science and research buildings – for example dedicated laboratory ventilation, LEV systems, chilled/hot water distribution, AHUs, heat recovery systems, plantroom design, treated water, steam, laboratory gases and cryogenics.
• Strong knowledge of controls and integration with BMS for sequencing, pressure control, temperature control, and fault detection; experience with commissioning and handover is expected.
• Understanding of laboratory‑specific requirements (e.g., cleanroom pressurisation, exhaust/containment strategies, hazardous area ventilation, access for maintenance) or a willingness to rapidly develop this specialist knowledge.
• Demonstrable client‑facing experience: presenting technical solutions, translating client briefs into deliverable design packages, and supporting procurement and construction phases.
• Strong technical documentation skills: preparation of mechanical design reports, specifications, single line/pipework diagrams, schedules and tender documentation.
• Excellent stakeholder and communication skills, with the ability to explain complex technical solutions clearly to clients, architects and the project team.
• Relevant professional qualifications or chartered status (e.g., CEng/MEI/MCIBSE) or working towards chartership.

If there are adjustments or accommodations that we can put in place to help you participate and give your best at any stage of the recruitment process (whether relating to disability, neurodivergence or anything else) please let us know.