Manufacturing Engineer, Battery

Harbinger; Garden Grove (CA); On-site; USD 85,000 - 115,000; Full time

Benefits offered by this job

HDV Health, Dental & Vision coverage

Stock options

401k & HSA/FSA

Paid time off and parental leave

Annual vacation bonus

Wellness benefits

Cell phone stipend

Complimentary meals

Job summary

Harbinger, based in California, is seeking a Manufacturing Engineer to support daily production operations and drive continuous improvement across safety, quality, delivery, and cost. You will resolve manufacturing issues, optimize processes, implement ECOs, and ensure products are built to specification.

You will collaborate with Operations, Quality, Supply Chain, Maintenance, and Product Engineering to boost performance and capability.

Qualifications

• Bachelor's degree required in manufacturing/related field.
• 3+ years of manufacturing engineering experience.
• Experience in high‑volume manufacturing/EV/aerospace preferred.
• Strong knowledge of Lean, Six Sigma, and root cause analysis.

Responsibilities

• Serve as the primary engineering resource for manufacturing issues impacting safety, quality, delivery, and productivity.
• Develop and maintain work instructions, standard work, process flows, PFMEAs, control plans, and documentation.
• Lead Lean, Six Sigma, and waste reduction initiatives.
• Lead root‑cause investigations using 5‑Why, Fishbone, DOE, and Pareto analysis.
• Support MES, traceability, process controls, and manufacturing system improvements.

Skills

Lean Manufacturing

Six Sigma

Root cause analysis

Cross‑functional leadership

Manufacturing data analysis

Education

Bachelor's degree in Manufacturing/Mechanical/Industrial Engineering

Tools

MES

ERP

Quality systems

Job description

About Harbinger

Harbinger is an American commercial electric vehicle (EV) company on a mission to transform an industry starving for innovation. Harbinger’s best‑of‑its‑kind team of EV, battery, and drivetrain experts have pooled their deep experience to bring a first‑of‑its‑kind EV platform to support the growing demand for medium‑duty EVs and hybrids. Harbinger: Familiar Form, Revolutionary Foundation.

Position Summary

The Manufacturing Engineer is responsible for supporting daily production operations while driving continuous improvement across safety, quality, delivery, and cost. This role serves as the primary engineering resource for resolving manufacturing issues, optimizing manufacturing processes, implementing engineering changes, and ensuring products are built to specification. The Manufacturing Engineer works closely with Operations, Quality, Supply Chain, Maintenance, and Product Engineering to improve production performance and manufacturing capability.

Key Responsibilities

• Serve as the primary engineering resource for manufacturing issues impacting safety, quality, delivery, and productivity.
• Develop and maintain work instructions, standard work, process flows, PFMEAs, control plans, and manufacturing documentation.
• Develop, implement, and validate corrective and preventive actions.
• Support containment and recovery activities related to quality, supplier, and production issues.
• Escalate critical production risks and drive timely resolution.
• Drive continuous improvement initiatives focused on throughput, labor efficiency, cycle time, OEE, first‑pass yield, and cost reduction.
• Analyze manufacturing data and KPIs to identify opportunities and prioritize improvement activities.
• Lead Lean Manufacturing, Six Sigma, and waste reduction initiatives.
• Support implementation of engineering change orders (ECOs), product revisions, and process changes.
• Design and improve manufacturing processes, tooling, fixtures, and automation solutions.
• Support MES, traceability, process controls, and manufacturing system improvements.
• Validate new equipment, tooling, suppliers, processes, and product changes.
• Lead capacity, line balancing, workflow, and ergonomic improvement projects.
• Support new product introductions and manufacturing readiness activities.
• Lead root‑cause investigations using structured problem‑solving methodologies including 5‑Why, Fishbone, DOE, and Pareto analysis.

Qualifications

• Bachelor's degree in Manufacturing Engineering, Mechanical Engineering, Industrial Engineering, or related field.
• 3+ years of manufacturing engineering experience.
• Experience in high‑volume manufacturing, automotive, EV, aerospace, or industrial production environments preferred.
• Strong knowledge of Lean Manufacturing, Six Sigma, and root cause analysis methodologies.
• Experience with MES, ERP, quality systems, and manufacturing data analysis.
• Strong communication and cross‑functional leadership skills.

Key Benefits & Perks

• Comprehensive Health, Dental & Vision (HDV) – 100% employee covered
• Early‑stage Stock Options
• Robust Retirement Savings (401k, HSA, FSA)
• Generous Paid Time Off (PTO) & Parental Leave
• Annual Vacation Bonus
• Wellness & Fertility Benefits
• Cell Phone Stipend
• Complimentary Meals & Stocked Kitchens

California Pay Range

$85,000 — $115,000 USD

Equal Opportunity

Harbinger is an equal opportunity employer and complies with all applicable federal, state, and local fair employment practices laws. All qualified applicants will receive consideration for employment without regard to race, color, religion, national origin, ancestry, sex, sexual orientation, gender, gender expression, gender identity, genetic information or characteristics, physical or mental disability, marital/domestic partner status, age, military/veteran status, medical condition, or any other characteristic protected by law.

Harbinger is committed to ensuring that our hiring process is accessible for persons with disabilities. If you have a disability or limitation, such as those covered by the Americans with Disabilities Act, that requires accommodations to assist you in the search and application process, please email us at [e-mail].