Plastic Injection Molding Machine Operator Jobs in Houston, TX

What if your expertise in molds directly improved global eye health? At Alcon’s Houston, TX Manufacturing Facility, our Engineering function drives better quality, smarter processes, and stronger products, packaging, and materials. We’re looking for a Senior Toolroom Machinist who thrives on precision, ownership, and impact.

Use advanced technical judgment to keep injection molds and tooling running flawlessly. You’ll make key decisions within defined procedures, uphold GxP through SOP-driven documentation, and elevate performance across our four molding production suites.

• Tackle highly complex tasks in mold tooling design and plastic injection molding to boost operational efficiency.
• Apply deep problem-solving to make significant on-the-spot decisions.
• Comply with GxP: strictly follow SOPs and maintain accurate, complete records.
• Enforce rigorous quality control and meet regulatory requirements.
• Complete required training; fuel continuous improvement in day-to-day operations.
• Maintain precision molds in production, execute evaluations, repairs, modifications, and PM.
• Capture measurement data meticulously; generate clear, actionable reports.
• Operate core toolroom equipment—manual mills, lathes, surface grinders, CNC, and EDM.
• Disassemble, clean, repair, and replace defective parts within complex molding tools.
• Run mold and tooling setups and repairs; verify part quality and critical parameters; evaluate molds and recommend modifications; conduct basic machine and mold maintenance; monitor and verify daily production quantities and efficiencies per SOPs.
• Evaluate new processes, components, products, and systems for conformance to engineering specs.
• Test, adjust, and maintain electromechanical, mechanical, optical, pneumatic, hydromechanical, and pressure-type measuring/indicating instruments.
• Translate detailed specifications, blueprints, drawings, and requirements into methods and procedures.
• Assign and monitor work for other technicians.
• Isolate problems for further analysis.
• Be a cornerstone of our 7-days-a-week Toolroom support model across four molding suites.

• High School Diploma or equivalent
• Ability to read, write, understand, and communicate fluently in English
• 1 year of relevant experience

• Manufacturing toolroom experience within the Medical Device industry
• Understanding of mold design, function, and applications
• Proven skill diagnosing production issues to determine needed mold repairs
• Knowledge of fits, tolerances, and allowable mold running parameters
• Ability to manufacture/modify and measure precision mold components to ±0.0002” or finer
• Basic hot runner repair
• Polishing proficiency

• Hours: Tuesday–Friday; 4:00am–2:30pm CST
• Travel: 0–5%
• Relocation Assistance: Yes
• Sponsorship Available: No

• Do meaningful work: improve sight and improve lives.
• Team up to share standard processes and keep learning as work evolves.
• Grow faster with focused development opportunities.
• Benefit from a robust package: health, life, retirement, flexible time off, and more.

ATTENTION: Current Alcon Employee/Contingent Worker

If you are currently an active employee/contingent worker at Alcon, please click the appropriate link below to apply on the Internal Career site.

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ALCON IS AN EQUAL OPPORTUNITY EMPLOYER AND PARTICIPATES IN E-VERIFY

*Alcon takes pride in maintaining an inclusive environment that values different perspectives and our policies are non-discriminatory in recruitment, hiring, training, promotion or other employment practices for reasons of race, color, religion, gender, national origin, age, sexual orientation, marital or veteran status, disability, or any other legally protected status. Alcon is also committed to working with and providing reasonable accommodation to individuals with disabilities. If, because of a medical condition or disability, you need a reasonable accommodation for any part of the application process, or in order to perform the essential functions of a position, please send an email to **alcon.recruitment@alcon.com

** and let us know the nature of your request and your contact information.*

• Mechanical Troubleshooting Skills
• Tool/Die/Mold Repair Skills
• Experience in a Manufacturing Environment
• Injection Molding Experience