Machinist

About Libra Industries

Libra Industries is a full-service Electronics Manufacturing Services (EMS) provider with decades of experience delivering high-reliability electronic, mechanical, and electro-mechanical assemblies for customers in aerospace, defense, medical, semiconductor, and industrial markets. With facilities in Texas, Ohio, and Mexico, we serve a diverse customer base that depends on us for precision, quality, and on-time delivery.

JOB TITLE: Machinist

DEPARTMENT: Machine Shop

REPORTING TO: Machine Shop Manager

Libra Industries is a full-service Electronics Manufacturing Services (EMS) provider with decades of experience delivering high-reliability electronic, mechanical, and electro-mechanical assemblies for customers in aerospace, defense, medical, semiconductor, and industrial markets. With facilities in Texas, Ohio, and Mexico, we serve a diverse customer base that depends on us for precision, quality, and on-time delivery.

The Top-Level Machinist is a highly skilled precision machining professional responsible for the independent setup and operation of CNC machining centers to produce complex, tight-tolerance components. This role requires a thorough command of machining theory, blueprint interpretation, metrology, and setup methodology, and serves as a technical resource within the machine shop environment.

• Reads, interprets, and applies blueprints, planning sheets, sketches, and related technical documentation to determine tooling requirements, setup procedures, control settings, machining methods, and operational sequences.
• Mounts, aligns, and secures tooling attachments, fixtures, and work pieces to machine tables or work-holding devices in accordance with setup sheets and engineering requirements.
• Selects, installs, and qualifies cutting tools in machine spindles, ensuring proper tool length offsets and diameter compensation are established prior to production.
• Proficiently operates conventional tool room equipment including Bridgeport mills and surface grinders, as well as precision measurement instruments including micrometers, dial calipers, and dial indicators.
• Measures and documents part dimensions using precision metrology equipment including micrometers, calipers, gage pins, height gages, and other inspection tools, maintaining accurate records in compliance with quality system requirements.
• Sets up and operates CNC machining centers with full proficiency, including tool setting, workpiece fixturing, and loading and unloading of part holders, vises, and custom fixtures in support of complex machining operations.
• Calculates and establishes machine control parameters to accurately position the spindle relative to the workpiece and to regulate cutting depth, feed rate, spindle speed, and coolant flow in accordance with programming and engineering specifications.
• Initiates machine cycles and continuously monitors control displays and machine operation to detect malfunctions, anomalies, or conditions that may compromise part quality or equipment integrity.
• Interrupts machining cycles as required to change cutting tools, adjust setup configurations per the machining sequence, or perform in-process inspection to verify dimensional conformance to print specifications.
• Enters program edits or manually adjusts machine controls to correct malfunctions, compensate for tool wear, or address out-of-tolerance conditions, applying sound machining judgment to resolve issues efficiently.
• Operates machine in manual mode to perform non-automated functions, secondary operations, or setup verification activities as required.
• Communicates machining discrepancies, process deviations, and quality concerns to the supervisor or cell leader in a clear and timely manner, actively participating in root cause analysis and corrective action resolution.
• Maintains a clean, organized, and safe work area by routinely cleaning machines, tooling, fixtures, and parts in accordance with shop standards and 5S principles.
• Executes daily and weekly machine preventive maintenance tasks in accordance with established PM schedules to ensure equipment reliability, uptime, and longevity.
• Performs dimensional and visual inspection of completed parts to verify compliance with order specifications and applicable quality standards, utilizing Libra's quality control system to document results and ensure conformance to all requirements.

• High School diploma or GED required; technical training, vocational certification, or formal apprenticeship in machining or manufacturing strongly preferred
• Demonstrated experience operating CNC-controlled milling machining centers in a precision manufacturing environment
• Working knowledge of CNC machining programming, including the ability to read, edit, and optimize G-code programs at the machine control
• Minimum of 7 years of hands-on experience in a low-volume, high-mix precision machining environment, with a proven track record of…