Senior Test & Validation Engineer - Houston, USA [Hybrid]

SUBMER; Georgia; Hybrid; USD 90,000 - 130,000; Full time

Benefits offered by this job

Medical Insurance Plan

401k Plan

Hybrid-friendly environment

Career growth opportunities

Job summary

Submer in Houston is seeking a Senior Test & Validation Engineer to lead test planning, design, setup, execution, and reporting for cooling hardware systems. You will translate system requirements into actionable test cases and partner with engineering, product management, and operations to troubleshoot and continuously improve product and process.

The role requires a Bachelor’s degree in engineering or physics, 5+ years in cooling/hardware testing, hands-on lab work, and strong communication of

Qualifications

• Bachelor’s degree in Electrical Engineering, Mechanical Engineering, Thermal Engineering, Physics, or a related field.
• 5+ years of experience in cooling systems and hardware testing, system integration testing, or a closely related field.
• Strong critical‑thinking and troubleshooting skills, with high attention to detail.
• Ability to document, analyze, and communicate complex technical issues clearly in both written and verbal form.
• Hands‑on experience with server hardware installation, test instrumentation (e.g., sensors, DAQ systems), and test automation tools.
• Solid knowledge of heat transfer, thermal analysis, and immersion or liquid cooling concepts.
• Ability to wear Personal Protective Equipment (PPE), including safety glasses, nitrile gloves, work gloves, steel‑toed boots, and lab coats.
• Ability to use basic hand tools and perform hands‑on work such as fastening bolts and nuts, drilling, cutting, and basic fabrication; welding experience is a plus.
• Ability to stand for extended periods of time during testing and to work safely around running equipment and fluids.
• Highly motivated, detail‑oriented, and comfortable working in both independent and collaborative team environments.

Responsibilities

• Work with cross‑functional teams to develop test plans, procedures, and acceptance criteria for cooling systems (e.g., air, liquid, immersion, and two‑phase solutions) based on product requirements and industry standards.
• Set up test equipment and execute functional, performance, stress, and reliability tests.
• Troubleshoot issues uncovered during testing and streamline test procedures to improve coverage and efficiency.
• Analyze test results, identify deviations and trends, and prepare clear test reports for internal and external stakeholders.
• Communicate proactively with managers, customers, design partners, vendors, and other stakeholders regarding test status, risks, and issues.
• Support lab operations, including setup, calibration, safety, and maintenance of test equipment and test benches.

Skills

Test planning

Hardware testing

Troubleshooting

DAQ systems

Education

Bachelor's degree in Electrical/Mechanical/Thermal Engineering or Physics

Tools

DAQ systems

Test instrumentation

Basic hand tools

Job description

Title: Senior Test & Validation Engineer

Location: Houston, USA [Hybrid]

Type of Role: Permanent** / Full time**

Level of Experience: Mid - Senior (5+ years)

Travel Requirements: 10%

About Submer** **

At Submer, we’re committed to creating a digital world that is safer, more efficient, and environmentally sustainable. Our technologies are addressing the critical challenges faced by data centers, supercomputing, hyperscale, and edge computing. By joining Submer, you’ll be part of a team driving innovation that directly contributes to a greener tomorrow. As we continue to grow our teams and operations in the US, we are positioning ourselves to effectively meet the increasing demand for our solutions.

What impact you’ll have:

The Senior Test & Validation Engineer leads test planning, design, setup, execution, and reporting to identify bugs and performance bottlenecks early in prototype testing, minimizing costly rework and enabling more efficient product launches. The role also acts as a critical link between engineering, product management, and operations, translating system requirements into actionable test cases and partnering on troubleshooting, root‑cause analysis, and continuous improvement of both product and process to ensure cooling hardware and control systems meet all specification, regulatory, and customer requirements.

Responsibilities:

• Work with cross‑functional teams to develop test plans, procedures, and acceptance criteria for cooling systems (e.g., air, liquid, immersion, and two‑phase solutions) based on product requirements and industry standards.


• Set up test equipment and execute functional, performance, stress, and reliability tests.


• Troubleshoot issues uncovered during testing and streamline test procedures to improve coverage and efficiency.


• Analyze test results, identify deviations and trends, and prepare clear test reports for internal and external stakeholders.


• Communicate proactively with managers, customers, design partners, vendors, and other stakeholders regarding test status, risks, and issues.


• Support lab operations, including setup, calibration, safety, and maintenance of test equipment and test benches.

Requirements and qualifications:

• Bachelor’s degree in Electrical Engineering, Mechanical Engineering, Thermal Engineering, Physics, or a related field.


• 5+ years of experience in cooling systems and hardware testing, system integration testing, or a closely related field.


• Strong critical‑thinking and troubleshooting skills, with high attention to detail.


• Ability to document, analyze, and communicate complex technical issues clearly in both written and verbal form.


• Hands‑on experience with server hardware installation, test instrumentation (e.g., sensors, DAQ systems), and test automation tools.


• Solid knowledge of heat transfer, thermal analysis, and immersion or liquid cooling concepts.


• Ability to wear Personal Protective Equipment (PPE), including but not limited to safety glasses, nitrile gloves, work gloves, steel‑toed boots, and lab coats.


• Ability to use basic hand tools and perform hands‑on work such as fastening bolts and nuts, drilling, cutting, and basic fabrication; welding experience is a plus.


• Ability to stand for extended periods of time during testing and to work safely around running equipment and fluids.


• Highly motivated,detail‑oriented, and comfortable working in both independent and collaborative team environments.

What we offer

• Attractive compensation package reflecting your expertise and experience.


• Medical Insurance Plan.


• 401k Employee volunteer contribution Plan.


• A great work environment characterized by friendliness, international diversity, flexibility, and a hybrid-friendly approach.


• You´ll be part of a fast-growing scale-up with a mission to make a positive impact, offering an exciting career evolution.

Our job titles may span more than one job level. The actual base pay is dependent on a number of factors, such as transferable skills, work experience, business needs and market demands.

Our inclusive responsibility

Submer is committed to creating a diverse and inclusive environment and is proud to be an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, gender, gender identity or expression, sexual orientation, national origin, genetics, disability, age, veteran status, or any other protected category under applicable law.