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Type:

full-time

Job Description:

Location:

Princeton, New Jersey Company:

Princeton Critical Minerals Position Overview:

Princeton Critical Minerals is seeking a skilled and hands-on Workshop Manager / Machinist to oversee daily workshop operations while actively contributing to machining, fabrication, and maintenance tasks. This role requires a balance of leadership, technical expertise, and operational efficiency to support production and R D activities.

Key Responsibilities:

Lead day-to-day workshop operations, ensuring a safe, organized, and productive work environment. Build, fabricate, assemble, and test prototypes, pilot systems, and production equipment. Operate and maintain machining equipment, including CNC mills, lathes, manual machine tools, fabrication equipment, and welding systems. Work directly with engineering teams to convert concepts, CAD models, and drawings into functional hardware. Support rapid design-build-test cycles by identifying practical manufacturing solutions and design improvements. Supervise and mentor technicians, machinists, interns, and contractors as needed. Manage workshop resources, including equipment, tooling, consumables, and inventory. Coordinate preventive maintenance and troubleshoot mechanical systems like conveyors, linear actuators, electrical, pneumatic, and hydraulic systems. Establish workshop best practices, safety procedures, and quality standards. Source materials, components, and fabrication services from external vendors when required. Support field deployments, pilot installations, and equipment commissioning activities. Drive continuous improvement initiatives to increase workshop efficiency and reduce project turnaround time.

Qualifications:

5+ years of hands-on experience in machining, fabrication, prototyping, or workshop operations. Strong experience with CNC machining, manual machining, fabrication, and mechanical assembly. Ability to read and interpret technical drawings and specifications Demonstrated experience building and troubleshooting mechanical systems. Knowledge of safety standards and best practices in a workshop environment Excellent organizational and communication skills

Preferred Qualifications:

Experience working in startups, R D organizations, pilot plants, or product development environments. Proficiency with CAD/CAM software and design-for-manufacturing principles. Welding, metal fabrication, and structural assembly experience. Familiarity with pumps, conveyors, industrial automation, instrumentation, or process equipment. Experience supporting field operations in industrial, mining, water treatment, or chemical processing environments. Ability to work across disciplines including mechanical, electrical, controls, and manufacturing engineering.

Education & Experience:

High school diploma or equivalent required; technical certification or associate degree preferred 5+ years of machining experience; 2+ years in a leadership role preferred

Compensation & Benefits:

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Prototype Technician