Test Development- Sr. Testing 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 Summary:

To support our extraordinary teams who build great products and contribute to our growth, we're looking to add a Test Development- Senior Testing Engineer, located in Shenzhen .

Reporting to the Test Development Director , the Senior Testing Engineer role involves...

What a typical day looks like:

• Test System Architecture & Planning:

Define system-level architecture for automated test equipment, including the selection of key instruments (e.g., power supplies, electronic loads), system controllers, and software frameworks to meet product test requirements.

• System Integration & Software Development:

Lead the integration of hardware and software components. Develop, debug, and optimize test sequencers/executives using platforms such as NI LabVIEW/TestStand, Python, or C# to create automated validation and production test programs.

• Requirement Analysis & Specification:

Collaborate with product design and validation teams to analyze product specifications, derive detailed test requirements, and translate them into system and software specifications.

• Cross-functional Leadership:

Work as the technical nexus between Test EE engineer, Test mechanical engineer, test SW engineer, product design engineers, and the manufacturing team to ensure the test system meets all technical and operational goals.

• System Validation & Documentation:

Develop and execute system validation plans (e.g., GR&R, Measurement System Analysis) to ensure test accuracy, repeatability, and reproducibility. Create comprehensive documentation, including system architecture diagrams, software manuals, and user training guides.

• Deployment & Support:

Manage the deployment of test systems to NPI and manufacturing sites. Provide high-level troubleshooting support and train technicians and engineers on system operation.

• Continuous Improvement:

Drive continuous improvement initiatives for test systems, focusing on reducing test time, improving efficiency, enhancing data analytics capabilities, and lowering the cost of test.

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

• Bachelor's or Master's degree in Electrical Engineering, Computer Engineering, Automation, or a related field.
• 8+ years of experience in designing, developing, and deploying automated test systems, preferably in the power electronics industry (server power supply, inverter, UPS, etc.).
• Proven expertise in system-level integration, combining instrumentation hardware, communication buses and test software.
• Solid understanding of test and measurement fundamentals, instrument control, and data acquisition principles.
• Excellent system-level problem-solving skills, with the ability to diagnose complex issues spanning hardware, software, and firmware.
• Strong project management and communication skills, with the ability to lead technical discussions and collaborate effectively with global teams.
• Knowledge of power electronics fundamentals and understanding of key power supply parameters and test methodologies.
• Flexibility, enthusiasm, creativity, and a proactive approach to tasks.
• Fluency in English, including speaking, comprehension, and writing skills.
• Experience in global collaboration is an advantage.

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

• Social Insurance and housing fund
• PTO

Job Category
Design, Process & Technology 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): Shenzhen, China

Job ID: Flex-WD211972

Employment Type: FULL_TIME

Posted: 2025-11-28T19:52:34