Senior Process Engineer

Join a manufacturing leader with over 50 years of excellence, where every role contributes to building reliable transportation solutions that people depend on everyday across the United States and Canada. At ENC, we prioritize safety, quality, innovation, collaboration, and continuous growth – creating vehicles our teams can take pride in.

Founded in 1975, ENC (ElDorado National – California) is a leading U.S. transportation manufacturer specializing in design, engineering, and end-to-end production of heavy-duty buses, shuttles, and cargo vehicles through a custom-build, mixed-model assembly process. Each vehicle is produced in our purpose-built facility in Riverside, California supporting public agencies and private transportation providers nationwide. We offer one of the industry’s widest portfolios of power options, including 100% battery-electric, diesel-electric hybrid, CNG, and clean diesel.

ENC is committed to revitalizing American manufacturing through innovation, customer focus, and the delivery of high-quality vehicles that keep communities connected, supported, and moving forward.

Location: Riverside, CA

Salary Range: $123,000 - $133,000

We are seeking a Senior Process Engineer to establish and improve the manufacturing processes required to build vehicles safely, consistently, and efficiently.

This is a key new position within the organization and will serve as the bridge between Design Engineering and Production. The Senior Process Engineer will take engineering designs, drawings, and Bills of Materials (BOMs) and translate them into clear, controlled, production-ready processes that manufacturing personnel can reliably follow.

The successful candidate will play a critical role in supporting the company's current pilot bus program, documenting lessons learned and establishing standardized processes that can be carried forward into future production and mass-production programs. It will also help transit production from skill-based personnel to document-based personnel.

This list of essential duties is not all-inclusive and may be expanded to include other duties, as management may deem necessary from time to time. The team member must be able to perform each essential job duty identified below satisfactorily. Reasonable accommodations may be made to enable qualified individuals with disabilities to perform the essential duties of this position unless doing so would create an undue hardship.

• Develop and document assembly and manufacturing processes for transit buses/future models.
• Translate engineering drawings, BOMs, and specifications into practical production processes.
• Define assembly sequences, required tools, materials, fasteners, and quality checkpoints.
• Identify opportunities to improve efficiency, quality, and repeatability.

• Create clear, easy-to-follow work instructions for production personnel.
• Include part numbers, quantities, tools, torque requirements, fasteners, installation procedures, and inspection points.
• Maintain accurate and revision-controlled manufacturing documentation.
• Develop visual instructions using photographs, drawings, or illustrations when appropriate.

• Review engineering BOMs and drawings for completeness and manufacturability.
• Identify missing parts, hardware, information, or discrepancies before production.
• Establish clear part identification and labeling practices.
• Help develop and maintain manufacturing BOMs and production documentation.

• Work directly with Production during pilot vehicle builds.
• Document assembly issues, missing information, design problems, and production difficulties.
• Ma…