Technical Design Engineer

H W Martin; United Kingdom; On-site; GBP 60,000 - 80,000; Full time

Job summary

A specialist vehicle manufacturer in Market Harborough seeks a Technical Design Engineer to produce technical drawings and improve vehicle designs. The ideal candidate has experience in electrical and mechanical design, proficiency in CAD software, and strong documentation skills. This role offers competitive pay, generous holiday, and opportunities for professional development within a supportive team environment.

Benefits

Competitive rates of pay

Company life assurance

33 days holiday

Christmas shut-down

Free on-site parking

Supportive working culture

Ongoing training and development

Employee Assistance Programme

Team social events

Qualifications

• Proven experience in vehicle electrical and/or mechanical design.
• Proficiency in CAD software for mechanical and electrical schematics.
• Strong understanding of vehicle safety standards.

Responsibilities

• Produce detailed electrical wiring diagrams and schematics.
• Create CAD drawings for vehicle bodies and layouts.
• Develop technical build documentation and user manuals.

Skills

Vehicle electrical design

Vehicle mechanical design

CAD software proficiency

Wiring diagrams interpretation

Hydraulic schematics

Attention to detail

Documentation skills

Project management

Tools

AutoCAD

SolidWorks

Job description

Technical Design Engineer

Based at our Market Harborough site, Monday to Friday 08:30 – 17:00. Start date: As soon as possible / Negotiable. Salary: Competitive rates depending on experience.

King Highway Products is looking for a practical, detail-focused Technical Design Engineer to join our small yet expanding team. This key role is responsible for producing accurate technical drawings, wiring diagrams, and manuals that support the design, build, and ongoing improvement of our specialist traffic management vehicles.

Collaborating with cross‑functional teams, you will help formalise existing designs, create CAD drawings and system schematics, and ensure all documentation meets compliance and safety standards.

This role offers a great opportunity for someone with a strong technical background in vehicle systems who enjoys improving and standardising real‑world designs. You’ll be given the tools, support, and autonomy to make a genuine impact on how our vehicles are documented, built, and maintained.

Responsibilities and Duties

• Produce detailed electrical wiring diagrams and system schematics from existing systems, recommending improvements where appropriate.
• Create and maintain CAD drawings for vehicle bodies, layouts, and component placement, based on established builds.
• Generate simple hydraulic system drawings for cushions and light board operation.
• Develop and maintain technical build documentation, user manuals, and service‑level instructions to support production, fault finding, and aftersales.
• Produce and manage accurate Bills of Materials (BOMs), ensuring parts specifications align with compliance and build requirements.
• Work with production teams to translate designs into build‑ready documentation and ensure manufacturability.
• Collaborate with key internal stakeholders and third‑party suppliers to ensure accurate and compliant system integration.
• Ensure all technical designs comply with safety, industry, and regulatory standards (e.g., Chapter 8, TSRGD, DVSA).
• Maintain a structured and accessible database of drawings, BOMs, and technical records for all vehicle builds.
• Review existing builds to identify and implement design improvements and standardisation opportunities.
• Support compliance documentation and product improvement initiatives, refining legacy designs and component selections.
• Assist in the creation of training materials and service documentation to aid ongoing vehicle support and maintenance.

Experience, Qualifications and Skills Required

• Proven experience in vehicle electrical and/or mechanical design, ideally within commercial or specialist vehicle manufacturing.
• Proficiency in CAD software (AutoCAD, SolidWorks, or similar) for mechanical and electrical schematics.
• Ability to produce and interpret wiring diagrams, hydraulic schematics, and BOMs.
• Strong understanding of vehicle safety standards and regulatory compliance.
• Excellent attention to detail with strong documentation and manual‑writing skills.
• Collaborative mindset with the ability to work with production, engineering, and service teams.
• Self‑motivated and organised, with the ability to manage multiple live projects.

Benefits

• Competitive rates of pay
• Company life assurance (death‑in‑service benefit)
• 33 days holiday (including bank holidays)
• Christmas shut‑down
• Free on‑site parking
• Secure employment with opportunities for progression in an established, industry‑leading business
• Supportive working culture with long‑standing and knowledgeable team members
• Ongoing training and development opportunities
• Access to Employee Assistance Programme (EAP) including confidential counselling
• Team social events and recognition initiatives

Next Steps

If you are looking for a new challenge and feel you have the skills to take on this vital role, please submit your CV or complete our online application form stating your salary expectations.

We are an equal opportunities employer and welcome applications from all suitably qualified persons.

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