Mechanical Technician

Hgen; Los Angeles (CA); On-site; USD 60,000 - 85,000; Full time

Job summary

Hgen in Hawthorne, CA is seeking a Mechanical Technician to help build prototypes and test stands for our hydrogen production technology. You will fabricate and assemble electrolyzer stacks and mechanical structures, and install piping and tubing as part of a fast-paced startup.

Join a hands-on team collaborating with engineers to meet specifications, document builds, and contribute to scaling clean energy technology while ensuring safety and quality in every component.

Qualifications

• High school diploma or equivalent.
• 2+ years in hardware assembly, test, maintenance, or similar.
• Ability to lift up to 50 lbs.
• On-site work in Hawthorne, CA.
• Experience fabricating tubing and fittings for high-pressure systems.
• Proficiency with hand and power tools and fabrication machines.
• Ability to read engineering drawings and P&IDs.
• Strong problem-solving and troubleshooting skills.

Responsibilities

• Fabricate and assemble electrolyzer stacks, ensuring high standards for consistency, cleanliness, and quality
• Build and integrate mechanical and fluid systems into the electrolyzer system and balance of plant
• Diagnose and repair mechanical or fluid issues, ensuring safety and efficiency
• Work with engineers to meet design requirements and safety standards
• Record build processes, modifications, nonconformances, and test results for traceability
• Other duties as assigned

Skills

Tubing & fittings fabrication

Hand & power tools

Forklift operation

Reading engineering drawings

Troubleshooting mechanical systems

Education

High school diploma

Tools

Lathe

Milling machine

Laser cutter

Welder

Job description

Hgen's mission is to achieve a clean and renewable energy future through providing foundational molecules for critical industries. By enabling cheap and abundant clean hydrogen, Hgen aims to help decarbonize the more than 10% of global emissions that are best addressed with hydrogen. Learn moreabout why clean hydrogen is critical for achieving zero-emissions.

Description

As a Mechanical Technician, you will play a crucial role in building the prototypes and test stands that form the backbone of our cutting-edge hydrogen production technology. You will use your hands‑on skills to fabricate and assemble electrolyzer stacks, construct mechanical structures, and install mechanical piping and tubing. This is an exciting opportunity to work in a fast‑paced, collaborative startup environment, where your contributions will have a direct impact on the development and scaling of breakthrough clean energy technology.

Responsibilities

• Fabricate and assemble electrolyzer stacks, ensuring high standards for consistency, cleanliness, and quality

• Build and integrate mechanical and fluid systems into the electrolyzer system and balance of plant

• Diagnose and repair any mechanical or fluid issues, ensuring that all systems operate safely and efficiently

• Work closely with engineers to understand design requirements and ensure that builds meet technical specifications and safety standards

• Accurately record build processes, modifications, nonconformances, and test results to support traceability and improvements to system design and production processes

• Other duties as assigned

Basic Qualifications

• High school diploma or equivalent

• 2+ years of experience in hardware assembly, test, maintenance, or similar roles

• Ability to lift up to 50 lbs unassisted

• Able to work on‑site in Hawthorne, CA

Preferred Skills & Experience

• Experience with fabricating tubing and fittings for high‑pressure fluid and gas systems, perform basic operations (leak test, proof test), and the ability to work safely in these environments

• Proficiency in using hand tools, power tools, and machines (lathe, mill, laser cutter, welder) to build and assemble complex systems

• Ability to safely operate forklifts (5-15k lb) with non‑standard loads and use lifting equipment (gantries, slings, shackles, etc)

• Familiarity with reading and interpreting engineering drawings, schematics (P&IDs), work instructions, and technical documents

• Strong problem‑solving skills and the ability to troubleshoot mechanical systems

Professional Qualities

• Strong attention to detail and diligent in following work instructions

• Commitment and pride in high‑quality workmanship

• Ability to work both independently and as part of a team in a fast‑paced, dynamic environment

• Effective communication skills, with the ability to collaborate closely with engineers and other team members

• Curiosity into the system design and operation

• Enthusiasm for hands‑on work and a passion for contributing to the development of clean energy technology