Assembly Engineer Jobs in California (NOW HIRING)

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.
Industrial Engineer - General Assembly
Location: Riverside, CA
Salary Range: $105,000 - $130,000/year
Position Summary:
As an Industrial Engineer supporting ENC's General Assembly operations, you will play a critical role in driving efficiency, standardization, and continuous improvement on the factory floor. This position combines hands-on involvement in daily operations with strong analytical capabilities to optimize takt time, manpower planning, and production performance. You will partner closely with supervisors, team leads, and cross-functional teams to establish standard work, prepare for digital system implementations, and deliver measurable operational improvements.
Key Responsibilities
• Develop and maintain takt-time targets and station-level manpower plans, ensuring balanced production lines as volume and product mix evolve.
• Conduct detailed time studies and motion analyses to validate standard work, identify process inefficiencies, and eliminate waste.
• Build and manage production performance dashboards in Excel and Power BI, tracking throughput, OEE proxies, bottlenecks, and WIP trends.
• Lead and facilitate Kaizen events, driving cross-functional problem-solving and sustaining improvements through 5S audits and visual management practices.
• Collaborate with operations teams to write and refine work instructions, ensuring alignment with digital work instruction and MES system readiness.
• Conduct daily gemba walks to identify production issues, prioritize improvement opportunities, and drive impactful CI projects.
• Support PFEP and material presentation strategies to align with cell designs, kitting, and supermarket systems.
Required Qualifications
• Bachelor's degree in Industrial Engineering, Manufacturing Engineering, or a related field.
• Minimum of 3 years of experience in industrial engineering within assembly manufacturing environments.
• Proven expertise in time studies, standard work development, and line balancing.
• Advanced Excel skills (pivot tables, lookups) with the ability to create and maintain basic dashboards in Power BI or Tableau.
• Strong communication skills and a comfort level working primarily on the factory floor alongside operators and leadership.
• Working knowledge of lean manufacturing tools, including A3 problem solving, DMAIC, value stream mapping, and 5S.
Preferred Qualifications
• Experience with MES or digital work instruction systems through selection, piloting, or deployment phases.
• Background in bus/coach, truck, heavy equipment, or automotive final assembly environments.
• Certification or formal training in MOST, MTM, MODAPTS, or equivalent time measurement systems.
Tools & Systems
• Advanced Excel; Power BI or Tableau for performance visualization (preferred).
• Familiarity with AutoCAD for reviewing and updating simple layout drawings.
• Use of timer applications, video analysis, and standard industrial engineering toolkits for time and motion studies.
• Experience with SharePoint, Smartsheet, or Jira for action tracking and project management is a plus.
Work Environment:

• This is an onsite position based in Riverside, CA and requires being 100% onsite.

Benefits:

• Comprehensive benefits package: 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

Career Growth at ENC

• We believe great careers and leaders are built from within. Many of our team members have advanced into roles that lead or into specialized technical positions. We invest in hands-on training, skill development, and long-term career pathways within manufacturing operations.

Equal Opportunity Employer
ElDorado National California Inc. (ENC) is an equal opportunity employer and considers all qualified applicants for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, age, disability, veteran status, genetic information, or any other protected class under applicable federal, state, and local laws. We are committed to fostering a diverse and inclusive workplace where all employees feel valued and respected.
ENC takes affirmative action to employ and advance employment opportunities for minorities, women, protected veterans, and individuals with disabilities. We actively encourage qualified candidates from all backgrounds to apply and join our team.
ENC is also committed to ensuring that individuals with disabilities have equal access to opportunities. If you require a reasonable accommodation to complete the application process, please contact HR Department for assistance.
In accordance with California's wage transparency law (Senate Bill 1162), we are committed to pay equity and transparency. The salary range reflected on the job positing is our good faith estimate of what we expect to pay for this role at the time of posting. While we do not typically hire at the top of the salary range, initial offers are based on the candidate's qualifications and experience, with opportunities for growth and increases over time.