Senior Mechanical Engineer - High-Pressure Fuel Systems

Quantum Fuel Systems LLC.; Lake Forest (CA); Hybrid; USD 120,000 - 140,000; Full time

Benefits offered by this job

Comprehensive Health Coverage

401(k) with company match

Paid time off

Job summary

Quantum Fuel Systems, based in Lake Forest, California, is seeking a Sr. Mechanical Engineer / Fuel Systems Engineering to develop new high‑pressure hydrogen and CNG components and to improve existing designs for automotive and virtual pipeline applications.

The role emphasizes leading high‑pressure designs, coordinating DFMEA and testing activities, selecting qualified suppliers, and providing cross‑functional technical support while mentoring junior engineers and implementing QA procedures.

Qualifications

• Bachelor of Science Degree in Mechanical Engineering with 5 years’ experience; Master’s degree a plus.
• Experience with high-pressure fuel systems (CNG/H2) design and components.
• Familiar with DFMEA, ADVP&R, GD&T and automotive standards for alternative fuel systems.

Responsibilities

• Lead high-pressure component and system designs.
• Generate and support design activities: DFMEA, ADVP&R, etc.
• Evaluate, select, and qualify supplier products and services.
• Outline and oversee or perform product verification and validation testing.
• Support field services and failure root cause analyses.
• Knowledge of material compatibility issues with hydrogen and natural gas.
• Apply a systematic engineering approach to design processes.
• Perform analytic calculations (load and flow).
• Provide technical support to internal and external customers.
• Maintain good communication and documentation; mentor junior engineers.
• Stay current with industry trends and QA procedures; implement QA procedures and DWI.

Skills

High-pressure design

DFMEA

Supplier evaluation

Verification & validation

Hydrogen & CNG knowledge

Analytical calculations

Technical communication

Mentoring junior engineers

QA procedures

Education

Bachelor of Science Degree in Mechanical Engineering

Master's degree is a plus

Tools

NX Unigraphics

Job description

Quantum Fuel Systems, based in Lake Forest, California, is seeking a Sr. Mechanical Engineer / Fuel Systems Engineering to develop new high‑pressure hydrogen and CNG components and to improve existing designs for automotive and virtual pipeline applications.

The role emphasizes leading high‑pressure designs, coordinating DFMEA and testing activities, selecting qualified suppliers, and providing cross‑functional technical support while mentoring junior engineers and implementing QA procedures.