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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.
Here's how to pick the right one and stand out in your application.
144.883Jobs
31.687IN
81%EN
That number is real. WorkMundi's database shows 144,883 open engineer roles across the world. India has the most with 31,687 jobs, followed by the United States with 30,084. If you just finished reading one job ad and felt paralyzed by choice, you're not alone—but this scale is actually an advantage. It means you can afford to be selective.
Start by geography and language. The majority of engineer ads—117,837 of them—have the job posting text written in English. Use that as one filter, but remember: the ad text language tells you nothing about whether the role actually requires you to speak English day-to-day. Read the job description carefully. Then check which countries have the volume you're targeting. Singapore, Poland, and Australia round out the top five after India and the US.
Next, learn who's hiring. Accenture has posted 2,801 engineer roles. andurilindustries, speechify, and jobgether are also actively recruiting. If you're applying to one of these names, research their hiring patterns and interview style before you apply. That homework pays off.
When you interview, expect the question every engineer hears: 'Tell me about a time you had to debug a problem that wasn't in your job description.' Have a specific story ready—not a general one. Name the tools, the deadline pressure, and what you learned. Hiring managers listen for whether you see problem-solving as part of the role itself, not a favour.