Sr. Engineer - Electrical & Harness Design

Responsibilities

• Electrical Harness Design Control (Primary Responsibility)
• Own design control of MPCS electrical harness architecture and interconnect systems.
• Develop and maintain harness drawings, wiring diagrams, electrical schematics, and interface documentation.
• Define cable sizing, routing, shielding, grounding, and termination requirements.
• Select connectors, terminals, wire types, and protection devices appropriate for application environments.
• Establish electrical interface definitions between cabinet subsystems and external equipment.
• Manage engineering releases, design changes, ECNs, and ECRs related to harness and electrical system designs.
• Support global manufacturing and service organizations with harness-related issue resolution.
• MPCS Cabinet Electrical Design
• Support overall MPCS cabinet electrical architecture and integration.
• Develop and review cabinet-level power distribution, protection, control, communication, and auxiliary electrical designs.
• Ensure proper implementation of grounding, bonding, shielding, and EMC/EMI mitigation practices.
• Collaborate with power electronics, controls, and mechanical teams to optimize electrical layout and component integration.
• Support electrical safety reviews and compliance requirements for global markets.
• Component Integration & System Engineering
• Support selection and integration of electrical components including: Circuit protection devices
• Contactors and relays
• Communication devices
• Ethernet switches and gateways
• Sensors and auxiliary electronics
• Develop electrical interface specifications and system-level requirements.
• Support DFMEA, PFMEA, risk assessments, and design reviews.
• Ensure consistency across product configurations and future platform derivatives.
• Prototype Development & Validation
• Support prototype builds, laboratory integration, and commissioning activities.
• Perform troubleshooting and root-cause analysis of wiring, connectivity, communication, and electrical integration issues.
• Work hands-on with electrical test equipment to validate design intent.
• Develop and execute validation plans for harness and electrical subsystem verification.
• Support field issue investigation and corrective action implementation.
• Supplier & Manufacturing Collaboration
• Work closely with suppliers on harness development, manufacturing readiness, quality improvement, and cost optimization.
• Review supplier designs, drawings, and production documen

Benefits

Additional Information

Career Area: Engineering Job Description: Your Work Shapes the World at Caterpillar Inc. When you join Caterpillar, you're joining a global team who cares not just about the work we do - but also about each other. We are the makers, problem solvers, and future world builders who are creating stronger, more sustainable communities. We don't just talk about progress and innovation here - we make it happen, with our customers, where we work and live. Together, we are building a better world, so we can all enjoy living in it. Caterpillar's Electrification & Energy Solutions (E+ES) Division will focus on delivering advanced electrified power trains, zero-emissions products/technologies, and the solutions and services associated with these technologies. Focus areas include batteries, fuel cells, motors, inverters, micro grid controllers, charging, energy storage systems, lifecycle solutions/services, and integration of components for ePowertrain solutions across industries. We are looking for top talent to build and scale the next generation of technologies, products and services to help our customers build a better-more sustainable-world. We need self-motivated, intelligent and team-oriented individuals to make our plans a reality. Individuals with high emotional intelligence, humility and openness to discovery will thrive in the teams we are building. Job Summary The Senior Engineer - Electrical & Harness Design will serve as the technical owner for electrical harness systems and cabinet-level electrical integration for Caterpillar's Modular Power Conversion System (MPCS) product portfolio. This position is responsible for design control and continuous improvement of low-voltage and high-voltage harnessing systems, electrical schematics, wiring architecture, and electrical component integration. The successful candidate will work closely with system architects, power electronics, controls, mechanical engineering, manufacturing, validation, sourcing, and suppliers to deliver robust, manufacturable, and serviceable electrical designs that meet product performance, quality, reliability, and compliance objectives. The role also supports next-generation MPCS platform development and new product introduction activities. Additional Info: Anticipated domestic travel and/or international travel less than 25% Sponsorship is not offered for this position Domestic relocation is offered This position is located in Mossville, IL We're back! All roles at Caterpillar Inc. report on-site 5 days per week

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