Senior Injection Mold Toolmaker, Precision Plastics

Shape the tools that shape better sight

You arrive at our Manufacturing Facility in Houston, TX before sunrise on Tuesday. At 4:00am CST, you scan overnight production data from our four molding suites, then roll up your sleeves. A precision mold needs a quick teardown; another tool calls for polishing to ±0.0002” fit; a hot runner awaits a basic repair. By mid-morning, you’ve verified critical process parameters, recorded measurements, and coached a tech on a complex setup.

After lunch, you isolate a stubborn defect for further analysis, adjust an optical gauge, and sign off on documentation to GxP standards. Before you go at 2:30pm, you’ve improved uptime, shared know-how, and kept our patients’ needs in sharp focus.

That’s a day in the life of a Senior Injection Mold Toolmaker at Alcon—part of our Engineering function, the team that elevates quality, processes, products, packaging, and materials to deliver brilliant outcomes worldwide.

• Own highly complex work in mold tooling design and plastic injection molding to drive efficiency within defined procedures.
• Make sound, independent decisions using advanced technical skills and problem-solving abilities.
• Follow GxP rigorously: adhere to SOPs and keep documentation accurate, complete, and audit-ready.
• Guard quality: ensure strict quality control and meet all regulatory requirements.
• Complete required training and champion continuous improvement in daily operations.
• Maintain precision molds in a live production environment.
• Evaluate and execute repairs/modifications; perform mold preventive maintenance.
• Collect precise measurements, document results, and generate clear reports.
• Run toolroom equipment: manual mills, lathes, surface grinders, CNC, and EDM machines.
• Disassemble, clean, repair, and replace defective parts across complex molding tools.
• Perform mold/tooling setups and repairs; verify part quality and critical parameters; assess molds and recommend repairs/mods; carry out basic machine and mold maintenance; monitor/verify daily production quantities and efficiencies per SOPs.
• Evaluate new processes, components, products, and systems against engineering specifications.
• Test, adjust, and maintain electromechanical, mechanical, optical, pneumatic, hydromechanical, and pressure-type measuring/indicating instruments.
• Establish methods and procedures from detailed specs, blueprints, drawings, and requirements.
• Assign work to and oversee other technicians.
• Isolate problems for deeper analysis.
• Serve as a key contributor to 7-days-a-week Toolroom support for four molding production suites.

• High School Diploma or equivalent
• Fluent English reading, writing, comprehension, and communication
• 1 year of relevant experience

• Work Hours:
  
  Tuesday–Friday; 4:00am–2:30pm CST
• Travel: 0–5%
• Location:
  
  Manufacturing Facility in Houston, TX
• Relocation Assistance:
  Yes
• Sponsorship Available:
  No

• Manufacturing toolroom experience in the Medical Device industry
• Solid understanding of mold design, function, and applications
• Ability to diagnose production issues and determine required mold repairs
• Working knowledge of fits, tolerances, and allowable mold running parameters
• Capability to manufacture/modify and precisely measure components to ±0.0002” or tighter
• Basic hot runner repair
• Proficient mold polishing

• Join our mission to improve sight and improve lives—while advancing your career.
• Collaborate across teams to standardize best practices and share learning.
• Access focused development opportunities to see your career like never before.
• Enjoy robust benefits: health, life, retirement, flexible time off, and more.

• Mechanical Troubleshooting Skills
• Tool/Die/Mold…