Sr. CNC Machinist / Programmer

Arbor Energy • El Segundo, CA

1d • Onsite

About The Position

Arbor Energy & Resources Corporation is developing modular, fuel-flexible power systems designed to deliver clean, reliable baseload electricity with zero operating emissions. Its technology centers on a supercritical CO₂ turbine with integrated carbon capture. The company’s team includes aerospace engineers, combustion experts, and systems thinkers working to deliver dependable, emission-free power.

Arbor Energy is seeking a senior CNC machinist to manufacture designs for turbomachinery development, including parts made from 3D-printed nickel-based materials. The El Segundo machine shop includes a Bridgeport, a machine lathe, and a Haas VF3 with 5-axis capabilities, with another full 5-axis machine planned. The role is onsite in El Segundo, California, and is suited to someone experienced in tight-tolerance machining and setting up and running 3D-printed parts.

Requirements

• At least 10 years of experience operating CNC machinery.
• Demonstrated ability to interpret drawings and GD&T.
• Experience with shop math, tooling technology, blueprint reading, and part measurement.
• Strong mechanical aptitude.
• Strong interpersonal skills, including the ability to contribute to a team-oriented environment and balance team and individual responsibilities.
• Demonstrated ability using 5-axis mills.

Nice To Haves

• Experience with tight-tolerance machining.
• Ability to set up and run 3D-printed parts.
• Willingness to travel for short trips as needed, up to 20%.

Responsibilities

• Perform precision setups of CNC and manual machines.
• Program using Mastercam.
• Prioritize daily work to support high machine uptime across the shop.
• Use a CMM arm.
• Manage CNC cutting tools, ensuring required tools are loaded and measured before programs are run.
• Operate clean line equipment and laser part-marking equipment, and perform general part-finishing tasks.
• Use calibrated devices to verify that machined hardware conforms to print requirements.
• Perform weekly and monthly preventive maintenance on CNC machines.
• Maintain the shop, including chip bins, oils, greases, 5S, and general upkeep.
• Remain flexible in a fast-paced, changing environment and support teammates.
• Complete work instructions and test plans to document required data throughout each process.

Benefits

• Pre-IPO stock options.
• Medical, dental, and vision insurance, with Arbor covering 90% for employees.
• Basic life insurance fully covered.
• Health savings account (HSA) with matching.
• Flexible spending account (FSA).
• Unlimited PTO.
• 12 or more company holidays, including Earth Day.
• 401(k).
• Commuter benefits.
• Annual learning and development stipend.

What This Job Offers

• Job Type: Full-time
• Career Level: Senior
• Education Level: No Education Listed