Entry-Level Building Systems Engineer

Carnival UK; Southampton; On-site; GBP 60,000 - 80,000; Full time

Job summary

A renowned engineering firm is seeking Graduate Mechanical Building Services Engineers to join their design teams across the UK. You will be involved in developing low energy and sustainable design concepts for various projects including commercial, residential, and healthcare facilities. Candidates should have a Master’s degree in an engineering field or a relevant Bachelor’s degree and a passion for sustainable development. You will start in September 2026, with early application recommended as the role may close early due to high volume.

Qualifications

• Master's or Bachelor's degree in relevant engineering field.
• Studied an IMechE, CIBSE or Engineering Council accredited course.
• Eligible to work in the UK without sponsorship.

Responsibilities

• Support development of low energy, low carbon mechanical design concepts.
• Complete HVAC systems design.
• Use software for design optimization.
• Develop system designs with 3D modelling.
• Prepare decarbonisation strategies for buildings.

Skills

Passion for sustainable development

Critical thinking

Adaptability

Growth mindset

Education

Master’s degree in Mechanical, Architectural or Building Services Engineering

Bachelor’s degree in relevant field (considered)

Tools

Revit

IESVE

Job description

Opportunity

Our Mechanical Building Services Engineers apply their specialist skills to buildings projects across the globe and are influential in driving reductions in carbon dioxide emissions and energy/water consumption for the benefit of society. We offer our clients a broad spectrum of expertise and consulting services across a variety of developments including commercial and residential projects, universities, healthcare buildings, laboratories and research facilities, transport projects (airports, rail stations), sports facilities, hotels & leisure, theatres, museums, large‑scale industrial and manufacturing facilities, and data centres. Right now we’re looking for Graduate Mechanical Building Services Engineers to join our multi‑disciplinary design teams across the UK. From your first day, you will join an unrivalled community of experts where you are supported in your career path and encouraged to work towards a professional qualification.

Key Responsibilities

• Support the development of mechanical design concepts that encompass low energy, low carbon design, natural ventilation, sustainability and zero carbon.
• Complete the design of Heating, Ventilation and Air Conditioning (HVAC) systems.
• Use software and digital tools to analyse and optimise solutions.
• Use 3D modelling packages (Revit) to develop system designs.
• Undertake thermal and Building Regulation compliance modelling using proprietary software (IESVE or similar).
• Prepare mark‑ups and work with other design team members to progress holistic design of the project.
• Prepare and input decarbonisation strategies for buildings with respect to both operational and embodied carbon.
• Conduct site visits.
• Prepare reports, presentations and site reports.
• Carry out analysis of new technologies and how they can be incorporated into our projects to ensure a sustainable workplace.

Qualifications

• Master’s degree in Mechanical, Architectural or Building Services Engineering (Bachelor’s degrees also considered).
• Studied or has studied an IMechE, CIBSE or Engineering Council accredited course.
• A passion for sustainable development and creating a better world.
• Critical thinker who embraces new ideas and challenges the status quo.
• Growth mindset, eager to learn and explore new ways of working.
• Adaptable and ready to take on any challenge.
• Eligible to work permanently in the UK without sponsorship.

Additional Information

You should be able to start this opportunity in September 2026. Advert closing date: 6th January 2026. Please note that high volume may close this role ahead of the advertised closing date. Early application is recommended.