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Tiffin Motorhomes Inc.

Electrical Design Engineer

Tiffin Motorhomes Inc., El Paso, Texas, United States

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Overview

The

Electrical Design Engineer

is responsible for designing, developing, testing, and implementing electrical systems, harnesses, and components that meet both functional and safety requirements for motorhome or vehicle production. This role involves collaboration across engineering, production, quality, and service departments to ensure that all electrical systems deliver reliability, serviceability, and customer satisfaction. Core Responsibilities

1. System Design & Development

Design and document

12V DC and 120V AC systems

for motorhomes, including power distribution, lighting, controls, and appliance circuits. Develop

schematics, wiring diagrams, and harness drawings

using CAD software (AutoCAD Electrical, SolidWorks Electrical, or similar). Design systems integrating

inverters, converters, battery management, solar charging, and generator interfaces. Specify electrical components (wiring, connectors, breakers, fuses, relays, switches, etc.) and ensure compatibility with manufacturing and service standards. Collaborate with mechanical and structural engineers to ensure electrical routing, mounting, and clearance compliance. 2. Prototyping & Testing

Build and test prototype harnesses and assemblies for new models or system upgrades. Conduct functional and safety testing, including

load testing, insulation resistance, polarity, and fault detection. Diagnose and troubleshoot electrical issues during pilot builds and production launches. Work with suppliers and internal teams to validate new technologies (e.g., lithium batteries, multiplex systems, smart controls). 3. Documentation & Standards

Create and maintain

BOMs (Bills of Materials) , harness routings, and revision-controlled schematics. Ensure all documentation complies with

RVIA ,

NFPA 1192 ,

SAE , and

UL

standards. Support production and service teams with up-to-date prints, troubleshooting guides, and installation procedures. Participate in

Engineering Change Orders (ECOs)

and manage drawing updates through PLM systems. 4. Cross-Functional Collaboration

Work closely with

production engineers ,

assembly technicians , and

quality teams

to ensure manufacturability and serviceability of electrical systems. Coordinate with

purchasing and suppliers

to source cost-effective, high-quality components. Partner with

controls/software teams

on smart features, multiplex wiring, or embedded control systems. Support

customer service

and

warranty

in diagnosing field issues and developing long-term design fixes. 5. Continuous Improvement

Analyze production and field data to identify recurring electrical failures and develop permanent countermeasures. Lead initiatives to improve efficiency, reduce wiring complexity, and improve electrical reliability. Implement lean engineering principles to streamline documentation and design processes. Required Skills & Competencies

Strong knowledge

of DC/AC power systems, load balancing, and circuit protection. Proficiency

in CAD and electrical schematic software (AutoCAD Electrical, SolidWorks Electrical, or EPLAN). Hands-on experience

with harness design, routing, and termination. Familiarity

with RV, automotive, or heavy-equipment wiring standards. Ability to read and interpret

mechanical drawings, blueprints, and system layouts. Analytical and troubleshooting

skills for diagnosing electrical and control issues. Effective communication

for cross-departmental collaboration and supplier coordination. Preferred Qualifications

Education:

Bachelor’s degree in Electrical Engineering, Mechatronics, or related field (Associate + experience acceptable). Experience:

2–5+ years in electrical system design for vehicles, RVs, or similar. Software:

AutoCAD Electrical, SolidWorks Electrical, EPLAN, or equivalent. Knowledge of:

Multiplex systems (Spyder, Firefly, KIB, etc.), lithium battery integration, inverter/charger systems, and solar power design. Certifications:

FE/EIT, RVIA certification, or UL familiarity a plus. Key Performance Indicators (KPIs)

On-time completion of design deliverables and drawing releases. Reduction of field electrical defects or warranty claims. Compliance with industry electrical codes and safety standards. Improved manufacturability and assembly time of electrical systems. Documentation accuracy and revision control integrity. Work Environment

Primarily office-based with regular shop-floor interaction for prototype and production builds. Occasional travel to suppliers, test facilities, or trade shows. Must be able to perform light hands-on electrical assembly and testing when required.

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