Senior Machinist

Thea Energy•Kearny, NJ

6d•Onsite

About The Position

Thea Energy is leveraging recent breakthroughs in stellarator physics and engineering to create a faster and simpler approach to commercializing fusion energy. The company is reinventing the stellarator using computer-controlled arrays of planar coils thereby replacing the intricate, complex modular magnets required in all other stellarator architectures. Thea Energy is on a mission to create a limitless source of zero emission energy for a sustainable future. We are seeking an experienced and quality-driven Senior Machinist to program, operate, set up, and maintain our machine shop operations as we pioneer next-generation fusion energy technology. In this hands-on role, you will bridge the gap between rapid R&D prototyping and small-run production, operating both manual equipment and 3-axis CNC machines to fabricate high-precision components. You will be responsible for end-to-end machining execution—from reading complex technical drawings and programming toolpaths using High-Efficiency Machining techniques to performing setup, quality inspection, and routine CNC equipment troubleshooting. Working directly alongside engineering and production teams in a fast-paced environment, you will optimize workflows and contribute directly to building zero-emission stellarator architectures.

Requirements

8+ years of experience operating 3-axis CNC machines in a manufacturing environment.
Experience in a prototyping setting
Knowledge of HEM machining and tooling techniques
Hands-on experience with manual machines such as Lathes and Mills.
Proficiency in CNC machine setup, programming, and operation, with a strong understanding of machining principles.
Ability to read and interpret blueprints, technical drawings, and geometric dimensions and tolerances (GD&T).
Experience with precision measurement tools such as calipers, micrometers, and height gauges.
Strong problem-solving skills and attention to detail to identify and resolve machining issues.
Excellent communication skills to collaborate effectively with team members and convey technical information.
Demonstrated ability to work independently and prioritize tasks in a fast-paced production environment.
Commitment to safety protocols and practices to ensure a safe working environment.

Nice To Haves

Certification or formal training in machining or related fields.
Experience with Fusion 360 CAD/CAM software for CNC programming.
Familiarity with a variety of machining materials, including steel, copper, nickel alloys, plastics, and composites.
Knowledge of additional machining processes such as milling, turning, drilling, and grinding.
Willingness to cross-train and learn new technologies and machining techniques.

Responsibilities

Operate and maintain the machine shop including CNC machines, manual machines, and basic metrology equipment to produce high-quality precision components according to engineering specifications.
Set up CNC machines, including tooling, fixtures, and programming, to ensure efficient and accurate production runs.
Set up workflows and tooling to enable switching from production to one-of-a-kind parts.
Read and interpret blueprints, schematics, and technical drawings to understand machining requirements including GD&T.
Perform routine maintenance and troubleshooting of CNC equipment to ensure optimal performance and minimize downtime. Work with outside vendors when necessary.
Conduct quality inspections using precision measurement tools to verify part dimensions and tolerances.
Adhere to safety procedures and regulations to maintain a safe working environment for yourself and others.
Collaborate with engineering and production teams to optimize manufacturing processes and improve productivity.