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.

What you will tackle

• 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.

What you’ll bring

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

Schedule, travel, and location

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

Preferred qualifications

• 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

Grow with Alcon

• 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.

Internal applicants

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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Legal and accessibility

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 **[email protected]

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

You should be proficient in

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