Mechanical Design Lead Engineer
UK & Czechia
Vacancy listed 17/06/2026
Application deadline 24/07/2026
Details
Role Purpose:
We require a Mechanical Lead Design Engineer to lead the design of enclosures for electrical and electronic systems and batteries for a wide range of customer applications focussed on electrification, including battery management, power conversion and electric vehicle control systems. The successful candidate will lead the packaging of battery modules and packs and custom and off-the-shelf electrical/electronic components, external connectors, low-voltage harnesses and high-voltage/current interconnect into custom or modified enclosures, dealing with cooling requirements and meeting relevant industry standards and produce cost-effective and manufacturable designs. They will liaise with suppliers and manufacturers and work with the wider multi-disciplinary engineering team to support the delivery of effective engineering solutions.
Key Responsibilities:
  • Lead all mechanical design activities within Lorillion. 
  • Work closely with the other engineering disciplines, to develop modern, innovative, and practical mechanical system solutions 
  • Lead the design of battery module and pack designs to align with Lorillion’s strategic objectives. 
  • Lead the design of enclosures with electro-mechanical component package modelling and associated mechanical fixings, etc. to support modules and harnesses. 
  • Lead the design of solid components from folded sheet metal, machined solid or 3D printed plastic 
  • Lead the production of 2D manufacturing drawings from 3D models and designs 
  • Lead the development of 3D wiring harness models within the enclosure 
  • Support the Thermal Chief Engineer for the management of thermal interfaces such as cooling fins, liquid flow-through cold plates and vapour chambers 
  • Support Design for Manufacture reviews and work with suppliers and manufacturing partners to optimise designs for manufacturability and cost 
  • Develop and manage component database for electrical components for 3D packaging 
  • Manage assembly structures and BOMs, adhering to company engineering change control processes 
  • Delivery of engineering tasks and reporting of progress and issues in line with project milestones.
Qualifications, Experience and Skills Required:
  • Degree or similar in automotive or mechanical engineering 
  • Extensive experience (10 years+) relevant design experience of packaging and modelling of mechanical structures, batteries and electrical assemblies and components and LV & HV wiring harnesses gained across multiple projects in a prototyping and production environment. 
  • Experience of creating 2D component drawings and manufacturing assembly drawings 
  • Experience of creating and maintaining 3D electrical component database/ catalogue. 
  • Experience of thermal management techniques including liquid cooling 
  • Advanced capabilities in ECAD software tool e.g., SolidWorks, Catia V5/V6 or NX
Preferred:
  • Experience of working in a relevant industry (such as automotive, rail, marine, energy storage aerospace) 
  • Experience of high voltage busbar/PDU design and required creepage/clearance rules 
  • Understanding of structural / stress / finite element analysis
System or Knowledge:
  • Knowledge of GT&D and the correct application into component manufacturing drawings. 
  • Knowledge of relevant material science including thermal properties, corrosion resistance (including galvanic corrosion), strength and durability. 
  • Understanding of mechanical manufacturing processes and Design for Manufacture/Assembly 
  • Understanding of tolerance analysis
Personal Attributes:
  • Quality-focussed with an attention to detail 
  • Flexible and enthusiastic 
  • Good problem solving and analytical skills 
  • Strong communication skills – including report writing and presentation 
  • Lead by example. Sets high standards for the team to aspire to. 
  • Self-motivated and enjoys working within a team environment 
  • Willingness to accept responsibility and challenges required to achieve objectives 
  • Commitment to professional development and continuous learning.
Location and Travel:
  • You must be eligible to work in the UK or CZ and have no restrictions for world-wide travel. 
  • You must be able to pass UK DBSS check and be willing to work on Defence sector projects. 
  • This role is based at our Head Office in Coventry, UK, or our Engineering Office In Prague, Czechia, with flexibility for remote working. 
  • Standard working hours are 0900 to 1700, 5 days a week, however some travel may be required, and flexible working patterns are essential to the role.
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