Junior Mechanical Design Engineer

BSV Recruitment Ltd · Southampton, England ·

Last confirmed by our partners on 23 Oct 2026.

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Junior Mechanical Engineer – Building Services

About the Role

We are looking for a Junior Mechanical Engineer to join our growing building services engineering team. This is an excellent opportunity for an enthusiastic engineer looking to develop their career within a specialist consultancy focused on sustainable building design, energy efficiency and decarbonisation.

The successful candidate will support senior engineers in delivering mechanical building services designs across a range of new-build, refurbishment and energy-efficiency projects.

Key Responsibilities

  • Assist with the design and development of mechanical building services systems, including HVAC, heating, ventilation, domestic water and above-ground drainage.
  • Support engineers with calculations, technical drawings, specifications and design documentation.
  • Assist with 2D and 3D modelling using software such as AutoCAD and Revit.
  • Support site surveys, inspections and condition assessments.
  • Assist with the preparation of technical reports, schedules and project documentation.
  • Work collaboratively with electrical engineers, architects, contractors and other project stakeholders.
  • Develop an understanding of UK building regulations, CIBSE guidance and relevant industry standards.
  • Support the development of energy-efficient and low-carbon engineering solutions, including heat pumps, heat networks and other sustainable technologies.
  • Attend site visits and assist with technical support during project delivery.
  • Work under the guidance of senior engineers while progressively taking responsibility for elements of project work.

About You

  • Degree-qualified in Mechanical Engineering, Building Services Engineering or a related discipline.
  • Interested in developing a career in mechanical building services consultancy.
  • Familiar with AutoCAD, Revit or similar engineering/design software.
  • Able to demonstrate good analytical and problem-solving skills.
  • A strong communicator who enjoys working as part of a multidisciplinary team.
  • Organised, proactive and keen to learn.
  • Interested in sustainability, energy efficiency and the decarbonisation of buildings.
  • Ideally has some previous experience of mechanical building services design, although relevant graduate or junior-level experience will be considered
Apply on partner site Listing supplied by one of our partner job boards. Last confirmed: 3 days ago.

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