Senior Process Engineer

About the role

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.

Responsibilities

• 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.
• Maintain a structured pilot-build issue and lessons-learned log.
• Work with Design Engineering and Production to resolve issues; update processes, BOMs, and work instructions based on lessons learned.
• Investigate production problems and identify root causes; reduce assembly errors, rework, and production delays.
• Establish repeatable processes that can be scaled to future production.
• Capture lessons learned from pilot builds and incorporate them into future manufacturing standards.

Requirements

• Bachelor's degree in Manufacturing, Mechanical, Industrial Engineering, or related field.
• 7+ years of experience in automotive, transit bus, commercial vehicle, heavy equipment, or other complex assembly manufacturing.
• Experience in manufacturing, process engineering, or production engineering.
• Ability to read and interpret engineering drawings and BOMs.
• Experience creating work instructions and manufacturing documentation.
• Strong mechanical and manufacturing knowledge.
• Strong organizational and problem-solving skills.
• Comfortable working directly with production personnel on the manufacturing floor.

Benefits

• Medical (including FSA & HSA), dental, vision, life and disability insurance, EAP, mental health, and wellness programs
• 401(k) with employer match
• Paid time off and twelve (12) paid holidays
• Employee referral program
• Career growth and development opportunities

Pay

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