Senior​/Principal Mechanical Engineer - Multi-Disciplinary

Senior / Principal Mechanical Design Engineer

City of London Hybrid Working Up to 70k

A growing engineering consultancy is looking to appoint a Senior or Principal Mechanical Design Engineer to join its Building Services team.

The business delivers engineering expertise across a diverse portfolio of projects throughout the UK, supporting clients across sectors including commercial, defence, public sector, transportation, utilities and infrastructure. With a strong reputation for technical excellence and collaborative working, they provide engineers with the opportunity to work on challenging and high-profile projects while maintaining a healthy work‑life balance.

This is an excellent opportunity for an experienced Mechanical Design Engineer to join a well‑established team delivering innovative and sustainable building services solutions. You'll be involved in projects from concept through to completion, working closely with clients, architects, contractors and multidisciplinary design teams to deliver high‑quality, low‑carbon engineering solutions. For those operating at Principal level, the role offers additional responsibility around project leadership, client management and mentoring junior engineers.

• Lead the design and delivery of mechanical building services systems across a range of projects
• Develop innovative and energy‑efficient HVAC, heating, cooling and public health solutions
• Produce and review design calculations, specifications and technical reports
• Coordinate with electrical, sustainability and structural teams to deliver integrated design solutions
• Attend client, contractor and design team meetings
• Undertake site visits and provide technical support during construction
• Manage project programmes, resources and deliverables
• Mentor and support junior engineers

• Degree qualified in Mechanical or Building Services Engineering (or equivalent)
• Experience working within a building services consultancy environment
• Strong knowledge of HVAC, heating, cooling and building services design
• Proficiency with industry‑standard design software
• Good understanding of UK Building Regulations and CIBSE guidance
• Strong communication and client‑facing skills
• Ability to manage multiple projects and stakeholders

• Chartered Engineer status or working towards Chartership
• Experience leading multidisciplinary projects
• Knowledge of sustainable and low‑carbon building design principles

• Work on a broad range of technically challenging projects across multiple sectors
• Join a business with a strong reputation for engineering excellence
• Flexible working arrangements and a supportive culture
• Clear opportunities for progression and increased responsibility
• Exposure to high‑profile developments and long‑term client relationships
• Ongoing professional development and support towards Chartership

Eden Brown is committed to equality in the workplace and is an equal opportunity employer.