Precision CNC Machinist & Programmer

SureFire, LLC.; Fountain Valley (CA); On-site; USD 85,000 - 110,000; Full time

Job summary

SureFire, LLC is seeking a Precision CNC Machinist/Programmer to set up, operate, and optimize CNC milling/turning equipment for high-precision optical components. You will read drawings, select tooling, verify offsets, and support engineering and quality through first-article and in-process inspections.

Collaborating with cross-functional teams, you will drive process improvements, maintain lean 6S practices, and ensure dimensional accuracy, surface finish, and efficient production in a

Qualifications

• 2+ years of experience setting up and operating CNC machining equipment in a manufacturing environment.
• Experience with CNC programming, program verification, and CAM software such as Mastercam, Siemens NX CAM (highly preferred).
• Ability to read and interpret engineering drawings, work instructions, dimensional tolerances, and GD&T requirements.
• Experience establishing machine setups, tool offsets, work offsets, coordinate systems, and machining parameters.
• Experience using precision inspection and measurement equipment including micrometers, calipers, height gauges, indicators, and optical comparators.

Responsibilities

• Set up, operate, and optimize CNC milling and/or turning equipment to manufacture precision components in accordance with engineering drawings and specifications.
• Install and qualify cutting tools, work-holding fixtures, vises, chucks, and related tooling required for production.
• Establish, verify, and maintain machine coordinate systems, work offsets, tool offsets, and machine setups to ensure accuracy and repeatability.
• Perform machine prove-out, first-article verification, and production support activities prior to and during manufacturing operations.
• Load, verify, execute, and troubleshoot CNC programs while maintaining safe and efficient machine operation.
• Read, interpret, and edit CNC programs, including adjustments to feeds, speeds, tooling offsets, and machining parameters as required.
• Work with CAM-generated toolpaths and support machining operations using Siemens NX, Mastercam, or similar CAM software.
• Monitor machining operations and make process adjustments to maintain dimensional accuracy, surface finish, and production efficiency.
• Read and interpret engineering drawings, manufacturing documentation, dimensional tolerances, GD&T requirements, and work instructions.
• Perform first-article, in-process, and final inspections using precision measurement equipment.
• Identify, document, and communicate nonconforming conditions and support corrective actions.
• Collaborate with Engineering, Manufacturing, and Quality teams to develop, improve, and sustain machining processes.
• Recommend tooling, work-holding, machining strategies, feeds, speeds, and process improvements to enhance quality and efficiency.
• Troubleshoot dimensional, tooling, surface finish, programming, and machining-related issues and implement corrective actions.

Skills

CNC Machining

CNC Programming

Mastercam

Siemens NX CAM

Reading GD&T

Engineering Drawings

Lean Manufacturing

6S Practices

Problem Solving

Communication

Education

High school diploma or equivalent

Technical certification/Apprenticeship

Associate degree (preferred)

Tools

Mastercam

Siemens NX CAM

Job description

SureFire, LLC is seeking a Precision CNC Machinist/Programmer to set up, operate, and optimize CNC milling/turning equipment for high-precision optical components. You will read drawings, select tooling, verify offsets, and support engineering and quality through first-article and in-process inspections.

Collaborating with cross-functional teams, you will drive process improvements, maintain lean 6S practices, and ensure dimensional accuracy, surface finish, and efficient production in a