CNC Machine Maintenance Technician

Job Summary

The CNC Machine Maintenance Technician is a critical role within the Machine Shop Operation responsible for the installation, preventative maintenance, troubleshooting, and repair of both Vertical and Horizontal machining centers, as well as Lathes and other equipment within the Mizuho OSI Machine shop. Working closely with the Machine Shop Manager and the Manufacturing Engineering group, this position ensures maximum machine uptime, reliability, and safety. The role directly supports Kaizen (continuous improvement) and Six Sigma methodologies with an end goal of increasing Overall Equipment Efficiency (OEE) and capacity while reducing operational downtime and costs.

Responsibilities

• Mechanical & Electrical Repair: Troubleshoot, repair, and maintain CNC machine tools, including mechanical, hydraulic, pneumatic, and electrical/electronic systems.
• Preventative Maintenance: Execute structured preventative maintenance (PM) schedules for all machining centers to maximize OEE and prolong machinery life.
• Diagnostic Troubleshooting: Analyze machine errors, alarm codes, and mechanical deviations to determine root causes and implement corrective actions.
• Collaboration with Engineering: Partner with the Machine Shop M.E. group to implement production methodologies, standardize equipment reliability, and minimize downtime.
• Documentation & Records: Write and maintain comprehensive maintenance logs, PM checklists, and breakdown reports to track equipment history.
• Parts & Inventory Management: Identify required replacement parts, maintain a clean and organized spare parts inventory, and coordinate with vendors when necessary.
• Safety & Compliance: Ensure all machinery adheres to safety standards, including Lockout/Tagout (LOTO) procedures, and maintain a clean, organized, and safe department appearance.
• Knowledge Sharing: Willing to share technical knowledge, mentoring operators on proper daily machine care and assisting team members in their development.
• Problem Solving: Act as an independent employee able to analyze complex mechanical/electrical problems and formulate effective plans to overcome technical challenges quickly with a high degree of quality.
• Quality Systems: Understand, follow, and support Mizuho OSI's internal Quality System policies and procedures, including compliance with 21 CFR Part 820 Quality System Regulations.

Qualifications & Requirements

• AA Degree/Technical Cert and 2-6 YOE or HS Diploma and 8+ YOE.
• Fluent knowledge and experience troubleshooting CNC controls (e.g., Fanuc, Celos, Haas and/or Mitsubishi).
• High proficiency in reading electrical schematics, hydraulic diagrams, and mechanical blueprints.
• May be required to certify as a licensed forklift operator.
• Ability to apply concepts of basic algebra and geometry to verify machine alignments and geometric calibration.
• Expert proficiency using precision measurement tools (micrometers, calipers, dial indicators) and specialized diagnostic equipment.
• Willingness to be trained in Six Sigma and Kaizen practices to obtain relevant certifications (White, Yellow, or Green Belt) according to Technician level.
• Excellent computer skills (Windows, MS Office: Outlook, Word, Excel).
• Strong verbal and written communication skills in English, demonstrating a professional, team-oriented personality.