Test Engineer

Flex is the diversified manufacturing partner of choice that helps market-leading brands design, build and deliver innovative products that improve the world.

A career at Flex offers the opportunity to make a difference and invest in your growth in a respectful, inclusive, and collaborative environment. If you are excited about a role but don't meet every bullet point, we encourage you to apply and join us to create the extraordinary.

Job Summary

Job Description

Job Summary:

The Senior Test Engineer leads the development, implementation, and optimization of test solutions for electronic products, supporting production, troubleshooting test failures, improving yields, and ensuring reliable test processes. This role partners with Engineering, Quality, and Manufacturing teams to drive continuous improvement and support new product introductions.

What a typical day looks like:

• Lead test engineering activities for electronic products in a high-volume manufacturing environment.
• Develop, modify, validate, and support ICT, Functional, System, and ESS test solutions.
• Troubleshoot test failures, perform root cause analysis, and drive yield improvement initiatives.
• Support test equipment installation, calibration, verification, and integration into production.
• Create and maintain test documentation, procedures, and technical reports.
• Collaborate with Engineering, Quality, Manufacturing, and suppliers to resolve test-related issues.
• Train and mentor test technicians and operators on equipment, processes, and troubleshooting.
• Evaluate and implement new test technologies, automation solutions, and best practices.

The experience we're looking to add to our team:

• Bachelor's degree in Electronics, Electrical, Computer, Mechatronics Engineering, or related field.
• 3+ years of Test Engineering experience within electronics manufacturing (EMS preferred).
• Strong experience with ICT, Functional Test, System Test, and ESS environments.
• Experience with AOI, AXI/X-Ray inspection systems and failure analysis.
• Knowledge of DFT, test coverage, yield improvement, SPC, PFMEA, and root cause methodologies.
• Proficiency with oscilloscopes, logic analyzers, multimeters, and other electronic test equipment.
• Programming experience in Python, LabVIEW, TestStand, Perl, or similar platforms.
• Experience developing test fixtures, hardware interfaces, and automated test solutions.
• Ability to analyze complex electronic failures down to component level.
• Advanced English communication skills.

What you'll receive for the great work you provide:

• Competitive Salary.
• Life & Medical insurance.
• Christmas Bonus.
• Food Coupons.
• Saving Fund.

JM54

Job Category

Production Engineering

Required Skills:

Optional Skills:

Flex is an Equal Opportunity Employer and employment selection decisions are based on merit, qualifications, and abilities. We do not discriminate based on: age, race, religion, color, sex, national origin, marital status, sexual orientation, gender identity, veteran status, disability, pregnancy status, or any other status protected by law. We're happy to provide reasonable accommodations to those with a disability for assistance in the application process. Please email accessibility@flex.com and we'll discuss your specific situation and next steps (NOTE: this email does not accept or consider resumes or applications. This is only for disability assistance. To be considered for a position at Flex, you must complete the application process first).

Client-provided location(s): Guadalajara, Mexico

Job ID: Flex-WD230894

Employment Type: FULL_TIME

Posted: 2026-10-07T21:50:06