Full time

Senior Mechanical Design Engineer

RGB Recruitment
Oxford, Oxfordshire, OX1 1UQ
money-bag £48000 - £55000 per annum
Posted: 31 July 2026 (3 weeks ago)
Closing date: 30 August 2026
Ref: 60551462

About the Role

A Senior Mechanical Design Engineer is sought by a building services consultancy in Oxford. This full-time, hybrid role offers a salary between £48,000 and £55,000 per annum. You will lead mechanical design across diverse sectors, including heritage, education, and healthcare, with a strong emphasis on sustainability and Passivhaus principles. Responsibilities include producing detailed designs, calculations, and specifications, while liaising with clients and project teams. The position suits an engineer with significant UK experience and proficiency in relevant software. Joining a collaborative office of over 60 professionals, you will contribute to projects prioritising environmental performance and occupant wellbeing, with clear scope for professional development within a growing organisation.

Senior Mechanical Design Engineer
Location: Oxford
Salary: £48,000 - £55,000
Job Type: Full Time
Working Pattern: Hybrid
The Company
A growing, sustainability-led Building Services Consultancy is looking to appoint a Senior Mechanical Design Engineer to join its Oxford office.
The consultancy delivers mechanical, electrical, sustainability, building physics and Passivhaus design services across a diverse range of projects including heritage, education, commercial, healthcare, hospitality, transport infrastructure, residential and public sector developments.
With a collaborative team of over 60 professionals across multiple UK offices, the business is recognised for delivering efficient, sustainable building services solutions that prioritise both environmental performance and occupant wellbeing. You'll work closely with colleagues across the wider business on technically challenging projects while benefiting from genuine opportunities for career progression.
The Role
As a Senior Mechanical Design Engineer, you will play a key role in the delivery of mechanical building services projects from feasibility through to completion.
Working closely with multidisciplinary teams, you'll take responsibility for managing projects, mentoring junior engineers and ensuring the successful delivery of high-quality mechanical designs across a wide variety of sectors.
The role will include:

  • Leading the design and delivery of mechanical building services projects
  • Carrying out project surveys and feasibility studies
  • Producing mechanical designs, calculations, specifications and technical reports
  • Managing projects from concept through to handover
  • Undertaking site inspections and supervising mechanical services installations
  • Providing contract administration support throughout project delivery
  • Managing project programmes, workflows and key milestones
  • Supervising, mentoring and supporting junior engineers and technicians
  • Ensuring compliance with internal quality assurance procedures and industry standards
  • Working closely with clients, architects, contractors and multidisciplinary design teams
  • Assisting with fee proposals, project financial management and business development opportunities
  • Collaborating with colleagues across multiple office locations
Requirements
The successful Senior Mechanical Design Engineer will ideally have:
  • A Degree in Mechanical Engineering, Building Services Engineering or a related discipline
  • 3-5 years' experience within mechanical building services design
  • Experience managing and mentoring junior engineers
  • Experience delivering projects across multiple sectors
  • Strong technical knowledge of mechanical building services design
  • Experience using relevant mechanical design software
  • AutoCAD experience
  • Excellent communication and client-facing skills
  • Strong organisational and project management abilities
  • Good attention to detail
  • Competent user of Microsoft Office
  • Full UK driving licence and access to transport
Desirable experience includes:
  • Revit experience
  • Experience with building services modelling software
  • Knowledge of BIM processes and digital design workflows
What's on Offer
  • Competitive salary
  • Hybrid working
  • 25 days annual leave plus bank holidays
  • Career progression and internal promotion opportunities
  • Private healthcare
  • Performance and reward schemes
  • Retail and lifestyle discount platform
  • Additional holiday purchase scheme
  • Cycle to work scheme
  • Regular company social events
  • Ongoing technical and professional development
  • Supportive and collaborative working environment
Why Apply?
This is an excellent opportunity for a Senior Mechanical Design Engineer to join a growing consultancy with sustainability at the heart of its business.
You'll work on a diverse portfolio of technically challenging projects while taking on greater responsibility for project delivery, mentoring junior engineers and building long-term client relationships. With hybrid working, excellent benefits and genuine opportunities for progression, this role offers an excellent next step for an experienced Mechanical Building Services Engineer.
If you're interested, please contact Conner Richards at RGB Recruitment - crichards@rgbrec.co.uk
Keywords
Senior Mechanical Design Engineer, Senior Mechanical Engineer, Mechanical Building Services Engineer, Mechanical Design Engineer, Building Services, MEP, HVAC, Mechanical Design, Sustainability, Building Physics, Passivhaus, Revit, AutoCAD, BIM, Building Services Consultancy, Heritage, Education, Healthcare, Commercial, Hospitality, Residential, Public Sector, Oxford, Oxfordshire.

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