Test Manager

Flint Hills Resources; El Salto; On-site; MXN 600,000 - 1,000,000; Full time

Job summary

Molex, a Koch company, seeks a Test Manager to lead the Test Area and drive continuous improvements across test lines and MES integrations in a global setting. You will coordinate with Engineering, Production, and U.S. teams while delivering reliable testing operations across shifts.

Ideal candidates have extensive test management experience in manufacturing, strong English skills, and a track record in data-driven failure analysis and automated tester solutions.

Qualifications

• Bachelor’s degree in Electronic Engineering, Optoelectronic Engineering, Computer Engineering, or a closely related field.
• Extensive experience in test management, test engineering, or equivalent roles within manufacturing/testing environments.
• Advanced English (spoken and written) to communicate with U.S.-based teams.
• Experience with software development concepts and hardware integration.
• Experience with MES administration/integrations and statistical analysis for manufacturing quality.

Responsibilities

• Own the Test Area’s operational performance; review KPIs daily and drive actions to meet targets.
• Ensure test lines run 24/7 by applying preventive and corrective strategies to minimize downtime.
• Lead cross-functional alignment on open projects with Engineering, Production, Purchasing, and stakeholders.
• Architect, document, and develop tester systems and automated test solutions; transfer knowledge.
• Manage MES administration and integrations for accurate data flow and reporting.
• Generate and present FA findings to internal and U.S. engineering teams; coordinate actions.
• Apply Pareto, box plots, and other analyses to identify root causes and prioritize improvements.
• Use root-cause frameworks (8D, Ishikawa, 5 Whys) to drive corrective actions.
• Oversee technical purchasing: quotes, orders, and deliveries for test equipment and components.
• Facilitate technical test meetings and escalate issues for timely resolution.

Tools

MES software

Data analysis tools

Job description

As Test Manager you will lead and develop the Test Area to ensure continuous, high-quality operation of test lines and integrations. You will drive improvements, coordinate cross-functional projects, and provide technical leadership for test architecture, MES integrations, and failure analysis to support both local operations and U.S.-based engineering teams.

Our Team

You will join the OSCO division in Guadalajara — a cross-functional team working closely with Engineering, Production, and supply chain partners. The team ensures testing operations run reliably across shifts and collaborates with U.S. teams to solve technical problems and deliver continuous improvements.

What You Will Do

• Own the Test Area’s operational performance: review BU KPIs daily and implement actions to meet targets.
• Ensure test lines operate reliably 24/7 by driving preventive and corrective strategies to minimize downtime.
• Lead cross-functional alignment on open projects and continuous improvement initiatives with Engineering, Production, Purchasing, and other stakeholders.
• Architect, document, and develop tester systems and automated test solutions; transfer knowledge to the team.
• Manage MES administration and integrations to ensure accurate data flow and reporting for tests and failure analysis (FA).
• Generate and present FA findings to internal teams and U.S. engineering groups; coordinate follow-up actions.
• Apply statistical analysis (pareto charts, box plots, Cpk, pivot tables) to identify root causes and prioritize improvements.
• Use root-cause-analysis methodologies and tools to drive sustainable corrective actions and prevent recurrence.
• Oversee technical purchasing activities: create quotes, manage orders, and follow up on deliveries for test equipment and components.
• Facilitate technical test meetings and elevate issues appropriately to ensure timely resolution.

Who You Are (Basic Qualifications)

• Bachelor’s degree in Electronic Engineering, Optoelectronic Engineering, Computer Engineering, or a closely related field.
• Extensive experience in test management, test engineering, or equivalent roles within manufacturing/testing environments.
• Advanced English (written and spoken) — able to communicate technical issues and lead discussions with U.S.-based teams.
• Demonstrated experience with software development concepts and hardware integration (hardware integrator).
• Experience with MES administration/integrations and applied statistical analysis for manufacturing quality (Cpk, paretos, box plots, pivot tables).

What Will Put You Ahead (Preferred Qualifications)

• Hands-on experience with fiber optics technologies and testing.
• Proven track record in performing and coordinating Failure Analysis (FA) with international engineering teams.
• Experience designing and building automated tester architectures and test solutions.
• Experience managing technical purchases, vendor quotations, and supplier follow-up.
• Experience leading teams in 24/7 production environments and executing continuous improvement projects.
• Familiarity with root-cause frameworks and tools (e.g., 8D, Ishikawa, 5 Whys) and translating findings into corrective actions.

At Koch companies, we are entrepreneurs. This means we openly challenge the status quo, find new ways to create value and get rewarded for our individual contributions. Any compensation range provided for a role is an estimate determined by available market data. The actual amount may be higher or lower than the range provided considering each candidate's knowledge, skills, abilities, and geographic location. If you have questions, please speak to your recruiter about the flexibility and detail of our compensation philosophy.

Who We Are

As a Koch company, Molex is a leading supplier of connectors and interconnect components, driving innovation in electronics and supporting industries from automotive to health care and consumer to data communications. The thousands of innovators who work for Molex have made us a global electronics leader. Our experienced people, groundbreaking products and leading-edge technologies help us deliver a wider array of solutions to more markets than ever before.

At Koch, employees are empowered to do what they do best to make life better. Learn how our business philosophy helps employees unleash their potential while creating value for themselves and the company.

Additionally, everyone has individual work and personal needs. We seek to enable the best work environment that helps you and the business work together to produce superior results.

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