Principal Mechanical Engineer

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Principal Mechanical Engineer | Permanent | Oxford – Hybrid | up to £70,000

PT Renewables is partnered with a 60+ person practice with offices across the UK.

They're looking for a experienced Mechanical Engineer with a background in building services to lead on a variety of projects.

They promote from within, they invest properly in their people, and they work across sectors that most engineers actually find interesting: heritage, healthcare, education, rail.

If you're a Mechanical Engineer with a background in M&E open to a conversation, read on.

The Role

  • Leading mechanical design projects end-to-end – from initial survey and feasibility through to design, spec, site supervision and handover.
  • Being the senior voice on mechanical services – managing workflows, holding QA standards, and making sure the detail is right.
  • Bringing junior engineers on – mentoring, training, and helping the team grow around you.
  • Getting involved in the business side – bidding, fee proposals and project financials as you settle in and progress.

About you

  • Degree in a relevant engineering subject
  • 3-5+ years in building services design
  • Confident with mechanical design software and AutoCAD & Revit
  • Exposure to sustainability or low-energy design

Package

  • Starting salary up to £55,000 – with fast-track progression opportunities
  • Hybrid working in Oxford office
  • Enhanced annual leave, generous pension, autonomous working and more.

If you're looking for your next move within Mechanical Engineering – apply now as we'd love to have a chat.

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Company: PT Renewables ?
Apply for the Principal Mechanical Engineer
Location: Oxford
Job Description:

Principal Mechanical Engineer | Permanent | Oxford – Hybrid | up to £70,000

PT Renewables is partnered with a 60+ person practice with offices across the UK.

They’re looking for a experienced Mechanical Engineer with a background in building services to lead on a variety of projects.

They promote from within, they invest properly in their people, and they work across sectors that most engineers actually find interesting: heritage, healthcare, education, rail.

If you’re a Mechanical Engineer with a background in M&E open to a conversation, read on.

The Role

  • Leading mechanical design projects end-to-end – from initial survey and feasibility through to design, spec, site supervision and handover.
  • Being the senior voice on mechanical services – managing workflows, holding QA standards, and making sure the detail is right.
  • Bringing junior engineers on – mentoring, training, and helping the team grow around you.
  • Getting involved in the business side – bidding, fee proposals and project financials as you settle in and progress.

About you

  • Degree in a relevant engineering subject
  • 3-5+ years in building services design
  • Confident with mechanical design software and AutoCAD & Revit
  • Exposure to sustainability or low-energy design

Package

  • Starting salary up to £55,000 – with fast-track progression opportunities
  • Hybrid working in Oxford office
  • Enhanced annual leave, generous pension, autonomous working and more.

If you’re looking for your next move within Mechanical Engineering – apply now as we’d love to have a chat.

#J-18808-Ljbffr…

Posted: May 18th, 2026