MEP Design Manager – HVAC

Company: TRIbuild Solutions Limited
Apply for the MEP Design Manager – HVAC
Location: London
Job Description:

MEP Design Manager – HVAC (Stage 5) | Freelance | Inside IR35 | Potential to go Permanent

Location: North Acton (hybrid – 3 days office / 2 days home)

Rate: £550-£650 per day (Inside IR35, via umbrella PAYE)

Contract Length: 6-9 months, likely extension, with strong potential to transition to a permanent role

Sector: Major Infrastructure / Tunnelling

TRIbuild Solutions is hiring on behalf of a major infrastructure programme delivering multiple assets along a live tunnelling scheme. This is a freelance, inside IR35 position based from a North Acton office on a hybrid working pattern, with genuine scope to move to a permanent position with the business for the right candidate.

Key Responsibilities

  • Management of supply chain Stage 5 design deliverables, ensuring quality and timely submission
  • Interface management between Stage 5 design suppliers and the Design Integrator
  • Management of Stage 5 supplier design queries, providing proactive and collaborative responses
  • Ensuring designs account for maintenance, and health, safety and welfare during construction and in-use
  • Reporting on design progress, risks and issues to the Package Manager (Delivery) and Commercial Package Manager
  • Identifying scope gaps and interface issues, supporting resolution
  • Supporting the commercial team in cost reconciliation and subcontract management
  • Coordinating design documentation review with relevant internal teams
  • Managing Stage 4 design queries, defects and resource allocation
  • Ensuring CDM requirements are communicated, implemented and appropriately risk-assessed throughout the design process

Essential Experience

  • Proven experience on major infrastructure projects is essential
  • Design management experience across Mechanical, Electrical and Public Health (MEP) systems, ideally with HVAC design or delivery experience
  • Experience of detailed design within an MEP setting
  • Experience delivering Stage 5 (Design for Construction & Manufacturing) design
  • Sound knowledge of relevant MEP design policies and standards
  • Experience within a large-scale, self-assured design environment
  • Experience managing CDM Regulations 2015 requirements within design
  • Computer literate (MS Word, Excel, PowerPoint, document control systems, AutoCAD, Navisworks, Projectwise)
  • Strong communication skills, adaptable to different stakeholders
  • Valid CSCS card

Desirable

  • Degree or professional qualification in Mechanical or Electrical Engineering (or related discipline)
  • Familiarity with specialist MEP engineering software (e.g. Trimble Amtech)
  • Knowledge of NEC construction contracts

This is a fantastic opportunity to join a high-profile infrastructure programme in a senior design management capacity, with a clear pathway to a permanent role for the right person.

For more information, please contact Leon at TRIbuild Solutions

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Posted: October 1st, 2026