Intermediate Mechanical Engineer

Pertemps; Greater London; Hybrid; GBP 38,000 - 50,000; Full time

Benefits offered by this job

Salary £38k-£50k

Bonus scheme

25 days leave

Hybrid working

Central London office

Job summary

Pertemps is seeking an Intermediate Mechanical Engineer in London with 2–4 years of building services experience. You will contribute to mechanical building services designs across commercial, healthcare and residential sectors, while developing technical and client-facing skills.

You’ll work under Chartered engineers, gain exposure to project delivery and full lifecycle activities, and have a clear path towards Senior Engineer. Hybrid London office and client site involvement offered.

Qualifications

• Degree in Mechanical Building Services Engineering or related field.
• 2–4 years' Building Services experience.
• Experience delivering mechanical building services projects.

Responsibilities

• Assist in design and delivery of mechanical building services projects.
• Produce design calculations, reports and specifications.
• Support drawings and engineering designs.
• Carry out HVAC, ventilation, heating and cooling calculations.
• Coordinate with other disciplines.
• Attend client meetings and design reviews.
• Site visits, surveys and inspections.
• Support project delivery from concept to completion.
• Ensure designs meet regulations and standards.
• Assist senior engineers with problem solving.

Skills

Building services engineering

HVAC design

Client interaction

Problem solving

Teamwork

Education

Degree in Mechanical Building Services Engineering

Tools

Revit

AutoCAD

IES VE

Job description

Intermediate Mechanical Engineer | London | Hybrid Working | Building Services Consultancy

Are you a Mechanical Building Services Engineer looking to accelerate your career within a growing consultancy where you'll gain exposure to major projects, direct mentorship from experienced engineers and genuine long‑term progression opportunities?

This is an exciting opportunity to join a design‑led building services consultancy that combines technical engineering excellence with practical project delivery experience and commercial understanding.

Working across a diverse portfolio of projects, you will become part of a collaborative team delivering innovative engineering solutions across commercial, healthcare, residential, education and mixed‑use developments.

Unlike many larger consultancies where engineers can become siloed within specific project stages, this role offers broad exposure across the full project lifecycle, providing an excellent platform for professional development and future progression.

The Opportunity

This position is ideally suited to an engineer with 2‑4 years' building services consultancy experience who is looking to take the next step in their career.

You will work closely with senior engineers and directors, assisting with the delivery of projects from concept through to completion whilst continuing to develop your technical and client‑facing skills.

Projects typically include:

• Commercial offices
• Student accommodation
• Specialist technical environments

This role offers a rare opportunity to gain experience beyond pure design work, developing a wider understanding of project delivery, coordination and client requirements.

Why This Role Stands Out

Many engineers at this level are seeking greater responsibility but often find progression limited within larger organisations.

Here, you'll have the opportunity to become involved in:

• Mechanical design and calculations
• Site visits and surveys
• Client and stakeholder interaction
• Technical reporting
• Construction‑stage activities
• Multidisciplinary collaboration

You'll work alongside experienced engineers who are invested in supporting your development, giving you the exposure and mentorship needed to continue progressing towards Senior Engineer level.

The Role

As an Intermediate Mechanical Engineer, you will support the delivery of mechanical building services designs across a variety of projects while developing your technical capabilities and project experience.

Key Responsibilities

• Assist in the design and delivery of mechanical building services projects.
• Produce design calculations, reports, specifications and technical documentation.
• Support the preparation of drawings and engineering designs.
• Undertake HVAC, ventilation, heating and cooling system calculations.
• Coordinate designs with electrical, public health, architectural and structural disciplines.
• Attend client meetings, design reviews and project workshops.
• Carry out site visits, surveys and inspections.
• Support project delivery from concept through to completion.
• Ensure designs comply with relevant regulations, standards and best practice.
• Assist senior engineers with technical problem‑solving and project coordination.
• Contribute to maintaining high‑quality technical standards across all projects.

What We're Looking For

• Degree qualified in Mechanical Building Services Engineering or a related discipline.
• 2‑4 years' experience within a Building Services Consultancy environment.
• Experience assisting in the delivery of mechanical building services projects.
• Understanding of HVAC, ventilation, heating and cooling systems.
• Strong technical and problem‑solving abilities.
• Ability to work effectively both independently and within a team.
• Good organisational skills and attention to detail.
• Proficiency with Microsoft Office.
• Experience using IES VE or similar building performance modelling software.
• Working knowledge of Revit and AutoCAD.
• Exposure to commercial office, residential or healthcare projects.
• Membership of CIBSE, IMechE or similar professional institution.
• An interest in progressing towards Chartership.
• Awareness of sustainability and low‑carbon building design principles.
• Previous experience attending site visits and client meetings.

This consultancy places significant emphasis on professional development and actively supports engineers who are ambitious about progressing their careers.

You will benefit from:

• Direct mentorship from experienced Chartered Engineers.
• Exposure to technically challenging projects across multiple sectors.
• Involvement in all stages of project delivery.
• Support towards professional accreditation and Chartership.
• Increased responsibility as your experience develops.
• A clear pathway towards Senior Engineer level.
• Regular exposure to clients, contractors and multidisciplinary design teams.

For engineers looking to fast‑track their development whilst working within a supportive environment, this represents an excellent opportunity.

Company Culture

The business has created a collaborative and supportive working environment where engineers are encouraged to take ownership of their work whilst learning from experienced and approachable senior professionals.

With a relatively lean structure, everyone has visibility across projects and opportunities to contribute beyond their immediate responsibilities.

The culture promotes:

• Collaboration and teamwork
• Technical excellence
• Professional trust and autonomy
• Knowledge sharing

This is an environment where your contribution is recognised and where you can play an active role in both project delivery and your own professional development.

- £38,000 - £50,000 salary depending on experience

- Annual discretionary bonus

- 25 days annual leave plus bank holidays

- Hybrid working arrangement

- Central London office location

- Clear progression opportunities

Location & Working Pattern: Central London | Hybrid Working

The role offers a mixture of office, home and project‑based working. Employees typically spend several days per week in the office, alongside attendance at client meetings and project sites as required.