Sr Test Engineer

Flex; Austin (TX); On-site; USD 110,000 - 140,000; Full time

Job summary

Flex is seeking a Test Engineer in Austin, TX to lead test development for a liquid‑cooling server rack product line, drive QA and performance testing, and ensure safety and reliability across NPI and production. You will design procedures, automate test execution with Python/Bash, analyze data for continuous improvement, and collaborate across hardware, software, and manufacturing teams.

This role reports to the Test Engineering Manager and requires 6–8 years in failure analysis and

Qualifications

• Bachelor’s degree in CS, CE, EE or related field; advanced degree preferred.
• 6–8 years of hands-on failure analysis and system-level testing in manufacturing.
• Proficiency with Python and Bash; strong Linux CLI and hardware troubleshooting.
• Experience with hardware/software integration and diagnostics in a high‑volume setting.
• Experience with DAQs and sensors (thermocouples, flow meters, pressure).
• Strong knowledge of statistical analysis and data‑driven troubleshooting.
• End-to-end test operations development: SOPs, work instructions, flowcharts.

Responsibilities

• Test Development & Execution across full rack platforms.
• Failure Analysis & Debugging of product issues.
• Automation & Data Analysis to improve tests and yield.
• Continuous Improvement of test processes.
• Knowledge of liquid cooling systems and integration.
• Technical Leadership & Training of team members.
• Cross-Functional Collaboration with design, manufacturing and QA.
• Reporting & Communication on test results and issues.
• Safety & Compliance adherence in all tests.

Skills

Python

Bash

Linux CLI

Data analysis

Statistical analysis

Test development

Test automation

Hardware troubleshooting

DAQs

Education

Bachelors in CS/EE

Tools

Linux

DAQs

Test equipment

Job description

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.

To support our extraordinary teams who build great products and contribute to our growth, we’re looking to add a Test Engineer located in Austin, TX.

Reporting to the Test Engineering Manager, the Test Engineer will serve as a key technical lead and individual contributor for a new liquid-cooled server rack product line. You will drive launch and ongoing support of high-power AI/ML, GPU, and hardware accelerator-based server, storage, and networking platforms featuring advanced liquid cooling. This role owns test process development for full rack (L6,10/L11) assembly and integration—ensuring quality, performance, and safety—across NPI and sustaining production. You’ll design procedures, automate test execution, analyze data for continuous improvement, and leverage liquid cooling expertise to deliver robust end-customer solutions.

Minimum Qualifications

• Bachelor’s degree in CS, CE, EE/Electronics, or related field (MSEE or advanced degree preferred).
• 6-8 years of hands-on experience in failure analysis and system-level testing within a high-paced manufacturing environment.
• Proficiency in scripting languages (Python, Bash), advanced Linux command-line operations, and hardware/network troubleshooting including the ability to train others on Linux fundamentals.
• Expertise in computer and server hardware/software integration, diagnostics, and repair -particularly within a manufacturing or high-level assembly environment
• Experience with DAQs and sensors (thermocouples, flow meters, pressure sensors).
• Strong knowledge of statistical analysis and its application to data-driven troubleshooting and decision-making
• End-to-end development of the test operations process, including SOPs, work instructions, process flowcharts, operational activities, and destination routing.

Preferred Qualifications

• Performing hands‑on debugging, validation, and system-level failure analysis of next‑generation server and rack systems within a high-mix, high‑ambiguity manufacturing environment.
• Strong Linux CLI proficiency, hardware integration expertise, and advanced troubleshooting skills across L6, and L10, test stages. Ability to train others on Linux basics.
• System architecture understanding—how liquid cooling integrates with overall system testing.
• Intermediate programming in Bash and Python.
• Familiarity with liquid cooling components (pumps, radiators, cold plates, chillers, reservoirs, tubing, fittings, coolants).
• Leak detection/prevention techniques and best practices.

Essential Duties & Responsibilities

• Test Development & Execution
• Failure Analysis & Debugging
• Automation & Data Analysis
• Continuous Improvement
• Knowledge of liquid cooling
• Technical Leadership & Training
• Cross-Functional Collaboration
• Reporting & Communication
• Safety & Compliance

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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 [e-mail] 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).