Principal / Associate Mechanical Engineer

RGB; Greater London; Hybrid; GBP 70,000 - 85,000; Full time

Benefits offered by this job

Bonus

Private Healthcare

Pension

Hybrid Working

Job summary

RGB in London is seeking a Principal/Associate Mechanical Engineer for a permanent, hybrid role within a design-led building services consultancy. You will provide technical leadership, engage directly with clients and oversee project delivery across sectors.

You'll work with an experienced leadership team to influence engineering solutions that are technically robust and commercially focused. The role also involves mentoring junior engineers and helping shape future growth.

Qualifications

• Degree qualified in Mechanical Building Services Engineering or a related discipline.
• Approximately 8+ years' experience within Building Services Consultancy.
• Strong technical understanding of mechanical building services design.
• Proven experience delivering projects across all RIBA stages.

Responsibilities

• Lead the delivery of mechanical building services projects from feasibility through to completion.
• Act as Lead Mechanical Engineer across multiple projects and sectors.
• Manage client relationships and act as a trusted technical advisor.
• Undertake mechanical design reviews and provide technical leadership across project teams.
• Oversee technical due diligence, surveys, feasibility studies and building assessments.
• Attend site inspections and construction reviews, ensuring designs are properly implemented.
• Coordinate multidisciplinary design teams and manage project programmes.
• Review calculations, reports, specifications and technical documentation.
• Identify project risks and develop practical engineering solutions.
• Mentor and support junior and intermediate engineers.
• Assist with resource planning and project delivery management.
• Contribute to business development, proposal preparation and client growth initiatives.
• Work closely with company leadership in helping shape future business strategy.

Skills

Client engagement

Project leadership

Mechanical building services design

Communication

Leadership

Education

Degree in Mechanical Building Services Engineering

Job description

This Principal / Associate Mechanical Engineer position with RGB in Central London offers a permanent, hybrid working arrangement within a design-led building services consultancy. The successful candidate will provide technical leadership, engage directly with clients, and oversee project delivery across a varied range of sectors. Working alongside an experienced leadership team, the appointee will influence engineering solutions that are both technically robust and commercially focused. Strong mechanical building services expertise, sound project management abilities, and effective communication skills are essential. The salary is £70,000 to £85,000 per annum, supplemented by a bonus, private healthcare, pension, and hybrid working; exceptional applicants seeking a higher package will also be considered.

Principal / Associate Mechanical Engineer | London | Hybrid Working | Building Services Consultancy Salary: £70,000 - £85,000 + Bonus + Private Healthcare + Pension + Hybrid Working Exceptional candidates seeking a higher package will also be considered.

Are you an experienced Mechanical Building Services Engineer looking for a role that combines technical leadership, client engagement, project delivery and genuine influence within a growing consultancy£

This is an opportunity to join a highly regarded, design-led building services consultancy that has built an impressive reputation for delivering technically robust, commercially focused engineering solutions across a diverse range of sectors.

Working alongside an experienced leadership team, you''ll play a key role in project delivery, client management, technical oversight and mentoring junior engineers, whilst helping shape the continued growth of the business.

This role would suit a well-rounded engineer who enjoys being involved in every aspect of a project, from technical design and site inspections through to client advisory services, team management and business development.

The Opportunity

As the consultancy continues to expand, they are seeking a Principal or Associate Mechanical Engineer capable of leading projects, developing client relationships and acting as a senior technical figure within the business. The successful candidate will have broad experience across building services consultancy and be comfortable operating both technically and commercially. You''ll work across a varied portfolio including:

• Commercial offices
• Workplace fit-outs
• Healthcare facilities
• Higher education projects
• Student accommodation
• Residential developments
• Mixed-use schemes
• Specialist technical environments

Beyond traditional MEP design, the business is regularly involved in:

• Technical due diligence
• Design management
• Asset reviews
• Building surveys
• Construction-stage support
• Decarbonisation projects
• Occupier advisory services
• Pre-acquisition and landlord / tenant technical assessments

As a result, this role offers exposure far beyond a typical mechanical design position.

What You''ll Be Doing

As a Principal / Associate Mechanical Engineer, you will:

• Lead the delivery of mechanical building services projects from feasibility through to completion.
• Act as Lead Mechanical Engineer across multiple projects and sectors.
• Manage client relationships and act as a trusted technical advisor.
• Undertake mechanical design reviews and provide technical leadership across project teams.
• Oversee technical due diligence, surveys, feasibility studies and building assessments.
• Attend site inspections and construction reviews, ensuring designs are properly implemented.
• Coordinate multidisciplinary design teams and manage project programmes.
• Review calculations, reports, specifications and technical documentation.
• Identify project risks and develop practical engineering solutions.
• Mentor and support junior and intermediate engineers.
• Assist with resource planning and project delivery management.
• Contribute to business development, proposal preparation and client growth initiatives.
• Work closely with company leadership in helping shape future business strategy.

What We''re Looking For Essential

• Degree qualified in Mechanical Building Services Engineering or a related discipline.
• Approximately 8+ years'' experience within Building Services Consultancy.
• Strong technical understanding of mechanical building services design.
• Proven experience delivering projects across all RIBA stages.
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