Data Center Liquid Cooling Engineer

Castrol; San Jose (CA); On-site; USD 102,000 - 190,000; Full time

Job summary

Castrol is seeking a hands-on engineer to join the Advanced Electrification Testing (AET) team. You will lead research, design and conduct experiments for data centre liquid cooling and thermal management, building and operating test setups and reporting findings.

Ideal candidates have 3+ years in thermal management or electronics cooling, with strong data analysis skills and the ability to work across multidisciplinary teams to deliver robust lab capabilities for cutting-edge cooling

Qualifications

• Degree in an engineering or science discipline.
• 3+ years of professional engineering experience.
• Experience with data centre or high-density electronics liquid cooling.
• Hands-on experience designing, building, or operating cooling test equipment.
• Strong understanding of heat transfer, thermodynamics and fluid mechanics.
• Experience in engineering/R&D testing projects with data analysis and reporting.
• Ability to work independently while collaborating across teams.
• Strong communication with customers, partners and stakeholders.

Responsibilities

• Execute R&D projects focused on data centre liquid cooling and thermal management.
• Design, build, set up and operate thermal and liquid-cooling test equipment.
• Develop test methods using DoE and statistics.
• Analyze data, interpret results and report progress.
• Provide engineering support for test equipment and lab capabilities.
• Develop ideas for testing emerging cooling technologies.
• Collaborate with internal teams, customers and partners as a technical representative.
• Maintain high safety and operational standards in lab activities.

Skills

Thermal management

Data centre cooling

DoE methods

Statistical analysis

Experiment design

Cross-functional collaboration

Communication skills

Education

Engineering degree

Job description

Castrol is one of the world’s leading lubricant brands, serving customers and consumers in the automotive, marine, industrial and energy sectors. Castrol brands are recognised globally for their premium quality and high performance, shaped by the company’s commitment to innovation and cutting‑edge technology. With products sold in more than 150 countries, Castrol has helped keep things moving on roads and racetracks, air, sea, and space for over 125 years.
Whether you’re just starting out or ready for your next big move, you’re in the right place to explore an exciting career with Castrol.

Job Description

About the team

The Advanced Electrification Testing (AET) team sits within Castrol Technology and provides testing, engineering support and technical thought leadership to Research and Product Development teams across data centre, mobility and electrification technologies. The team works closely with Castrol Technology and business stakeholders, customers and technology partners to develop and validate advanced thermal management and cooling solutions.

Key Tasks

• Execute research, development and testing projects focused on data centre liquid cooling and thermal management technologies.
• Design, build, set up and operate thermal and liquid-cooling test equipment and conduct physical testing.
• Develop test methods and apply Design of Experiments (DoE) and appropriate statistical techniques.
• Perform data analysis, interpret experimental results and prepare clear technical reports and project updates.
• Provide engineering support for the design, installation, operation and continuous improvement of test equipment and laboratory capabilities.
• Develop research ideas and testing approaches to evaluate emerging data centre cooling technologies.
• Collaborate with internal teams, customers and technology partners, representing Castrol as a credible technical partner.
• Maintain high operational and safety standards in all laboratory and engineering activities.

Experience Required

• Degree in a relevant engineering or science discipline.
• 3+ years of professional engineering experience, ideally within thermal management, electronics cooling or a related engineering environment.
• Experience with data centre or high-density electronics liquid cooling, such as cold plates, direct-to-chip cooling, immersion cooling, coolant loops or related technologies.
• Hands‑on experience designing, building, setting up or operating thermal or liquid‑cooling test equipment and conducting physical experiments.
• Strong understanding of heat transfer, thermodynamics and fluid mechanics and their application to cooling‑system performance.
• Experience executing engineering or R&D testing projects, including experimental design, data analysis, validation and technical reporting.
• Ability to independently progress technical work while collaborating effectively across multidisciplinary teams.
• Strong communication skills and the ability to work effectively with customers, partners and technical stakeholders.

The anticipated salary range for this position is shown below with additional market competitive benefits. Actual placement within this range will be determined by a candidate's relevant experience, skills, and internal equity.

Salary range

$102,000 - $190,000 USD

Privacy

The Castrol entity recruiting for this role is the data controller for the personal information you provide. We use it to assess your application and to manage the recruitment and onboarding process. We may share it with service providers who support our recruitment, and it may be transferred to other Castrol entities internationally under appropriate safeguards. We keep it only for as long as necessary. For details of how we use your information and your data protection rights, contact [e-mail].

We are an equal opportunity employer and value diversity at our company. We do not discriminate on the basis of race, religion, color, national origin, sex, gender, gender expression, sexual orientation, age, marital status, socioeconomic status, neurodiversity/neurocognitive functioning, veteran status or disability status. Individuals with an accessibility need may request an adjustment/accommodation related to Castrol recruiting process (e.g., accessing the job application, completing required assessments, participating in telephone screenings or interviews, etc.).

If you are selected for a position and depending upon your role, your employment may be contingent upon adherence to local policy. This may include pre-placement drug screening, medical review of physical fitness for the role, and background checks.