CIBSE Journal CPD
Principal Mechanical Design Engineer
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Principal Mechanical Design Engineer
Employer: Marcus Webb Associates Limited
Location: Surrey
Salary: 70,000.00 - 85,000.00 GBP Annual + bonus
Closing date: 16 Sep 2026
Specialist area: Mechanical engineering
Function: Engineer
Contract Type: Permanent
Hours: Full Time
Job Details
Principal Mechanical Design Engineer
Salary: up to GBP80k + bonus (flexible)
Location: Farnham, Surrey (onsite at least 4 days per week)
This role would suit an experienced and highly technical mechanical design engineer with a proven track record of designing and delivering complex, high-volume products into the automotive market.
The company is involved with the design and production of innovative electric vehicle powertrain systems incorporating HV electrical systems and electric motor systems.
Responsibilities
As a principal engineer you will be a technical lead; guiding and mentoring more junior engineers on engineering best practices and enabling the smooth delivery of products from concept to series production. The role will require:
- Demonstrable experience and technical competence in the design of complex high-volume products for the automotive industry (concept to series production)
- Experience in HV electromechanical systems (e.g. EV propulsion / powertrain systems such as electric motors, inverter / converters, battery systems, OBCs) alternatively chassis systems (e.g. brakes, steering or potentially HEV / ICE powertrain components)
- Experience of problem solving, CAE (simulation and validation), cost reduction and DFM/DFA principals
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As well as offering guidance and support, you will play an important role in mechanical design decisions, will be hands-on with design, analysis and supporting products through prototype, validation and NPI phases.
Experience / Knowledge Required
- A degree in mechanical engineering, automotive engineering or similar coupled with strong practical mechanical design and analysis experience (use of Solidworks, Creo, CATIA or similar)
- Proven high-volume automotive product design experience (essential) having taken complex products from concept to series production
- Experience in HV electromechanical systems (e.g. EV propulsion / powertrain systems such as electric motors, inverter / converters, battery systems, OBCs) alternatively chassis systems (e.g. brakes, steering or potentially HEV / ICE powertrain components)
- Experience of problem solving, CAE (simulation and validation), cost reduction and DFM/DFA principals
- Well versed in mechanical design best practice including 3D solid modelling and 2D design, including, DFM, GD&T, BOMs
- Able to technically lead projects and teams of mechanical design engineers
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Experience with the design of electric motors would be ideal. Otherwise other high volume and complex systems could be considered: E.g. Transmissions, gear systems, bearings, reciprocating engine components, fuel pumps, etc.
Having taken products through to production, a broad understanding of metallic or plastic material selection and production processes would be expected.
This principal mechanical design role is commutable from Basingstoke, Alton, Farnham, Farnborough, Woking, Guildford, Petersfield, Camberley and Winchester. Relocation assistance may be available for the right candidate.
This is an onsite role at least 4 days per week.
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