Job description

Job Overview

The Senior CNC Machinist is responsible for setting up, programming, operating, and optimizing CNC machines to manufacture, modify, and repair oilfield tools, tubular connections, accessories, and equipment in accordance with engineering drawings, API specifications, and Weatherford quality standards.

The role involves CNC programming, machining process improvement, troubleshooting, precision inspection, and tooling and fixture development to improve productivity, product quality, cost efficiency, and on-time delivery. The Senior CNC Machinist also supports continuous improvement, preventive maintenance, and root cause analysis while maintaining compliance with company HSE policies and procedures.

Key Responsibilities

• Program, set up, and operate CNC machines to manufacture, modify, and repair oilfield tools, tubular connections, accessories, and equipment.
• Develop and execute CNC programs using engineering drawings and established API specifications and procedures.
• Perform machine changeovers, including preparing equipment and adjusting setups for new jobs.
• Select, align, and secure workholding fixtures, cutting tools, and materials before machining.
• Manufacture and repair API rotary, casing, and tubing threads, including premium connections such as VAM, Tenaris, and JFE.
• Inspect machined components against in-process inspection requirements and accurately document inspection results.
• Adjust machine settings and cutting parameters to optimize production performance while maintaining quality standards.
• Develop and implement new tooling and fixtures to improve productivity, reduce costs, and support customer requirements.
• Lead and participate in Kaizen and continuous improvement initiatives.
• Monitor machining performance, identify operational issues, and communicate findings and recommendations to the supervisor.
• Support non-conformance investigations through root cause analysis and implementation of corrective and preventive actions.
• Assist with machinery maintenance and ensure scheduled preventive maintenance activities are completed.
• Maintain CNC equipment, tools, and work areas in a clean, organized, and safe condition.
• Follow Weatherford’s HSE policies, quality systems, API requirements, and applicable operational procedures.
• Exercise Stop Work Authority when unsafe acts or conditions are identified and report hazards, incidents, and work-related injuries.
• Perform other machining-related duties as assigned by the supervisor.

Skills:

• CNC programming and operation using Heidenhain, Fanuc, and/or Mazatrol Fusion 640 controls.
• Strong knowledge of CNC milling, lathe, and turn-mill operations.
• Knowledge of tooling geometries, cutting tools, cutting parameters, fixtures, and machine setup procedures.
• Ability to read and interpret mechanical drawings, blueprints, bills of materials (BOMs), and manufacturing specifications.
• Knowledge of oilfield product manufacturing and repair, including API rotary, casing, and tubing threads and premium connections.
• Proficiency in using micrometers and other precision measuring instruments.
• Ability to troubleshoot machining issues, optimize machine performance, and support root cause analysis and corrective actions.
• Knowledge of Kaizen, process optimization, and tooling and fixture development.
• Understanding of CNC machine care, preventive maintenance, and equipment performance monitoring.
• Knowledge of workplace safety, PPE, machine guarding, quality requirements, and Stop Work Authority.
• Strong mathematical, communication, and problem-solving skills, with attention to detail.
• Ability to speak and understand English.

Qualifications:

• Minimum of 5 years of CNC machining experience, including milling and lathe operations.
• Practical experience programming and operating CNC machines independently.
• Experience with Heidenhain, Fanuc, or Mazatrol controls is preferred.
• Demonstrated experience in oilfield equipment manufacturing, machining, and repair.
• Knowledge of API specifications, premium tubular connections, and associated machining requirements.
• Ability to interpret engineering drawings and apply appropriate tooling and cutting parameters.
• Experience using precision measuring instruments and performing in-process inspections.
• Ability to work safely and maintain quality standards in a manufacturing environment.
• Willingness to work 12-hour shifts as required.

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