Product Application Engineer - APAC

Castrol; Kuala Lumpur; On-site; MYR 70,000 - 110,000; Full time

Job summary

Castrol is seeking a skilled engineer to assess data centre cooling systems, configure and integrate equipment, and support installation across APAC. The role emphasizes troubleshooting, commissioning, testing, and documentation, with travel to customer sites required.

You will engage in calibration of instruments, data collection, and liaison with PLC/BMS systems, ensuring safe and compliant operation. A technical engineering background and strong English communication are essential.

Qualifications

• Engineering degree or equivalent technical experience in mechanical, electrical, instrumentation, controls or related field.
• At least 3 years of hands-on experience in application or field engineering, commissioning, testing, or technical support.
• Experience in industrial instrumentation, HVAC or liquid cooling, data centres, automation, or thermal test equipment.
• Knowledge of closed-loop fluid systems: pumps, valves, pressure, flow, temperature, sampling, contamination, corrosion.
• Experience with measurements such as pH, conductivity, turbidity, temperature, pressure, flow, glycol concentration, or corrosion rate.
• Ability to calibrate instruments using known standards and explain calibration results.
• Working knowledge of industrial controls and communications: 4–20 mA, RS‑485, Modbus, HMI, alarms, wiring diagrams.
• Strong troubleshooting and test‑planning skills with clear documentation and professional English.
• Willingness to travel across APAC and work safely at customer sites.
• Experience with data centre liquid cooling, CDUs, cold plates, PLC/BMS/DCIM integration, live‑site commissioning, high‑power electrical systems.

Responsibilities

• Assess customer sites and requirements for data centre cooling systems.
• Configure and integrate equipment: set up fluid analyzers and cooling load banks; support PLC/BMS integration.
• Support installation and commissioning: verify connections, power, grounding, pressure, flow, sensor setup.
• Troubleshoot and resolve issues across fluid, sensor, calibration, electrical, or communications domains.
• Test and validate products: create test plans, record results, compare with references.
• Train and support customers, colleagues and partners on operation, calibration, maintenance and diagnostics.
• Prepare technical documentation: convert site findings into proposals, diagrams, lists and reports.

Skills

Troubleshooting

Test planning

Communication skills

APAC travel willingness

Education

Engineering degree or equivalent

Tools

4-20 mA

RS-485

Modbus

HMI

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

Key Tasks

• Assess customer sites and requirements: Understand the data centre’s cooling system, electrical load, fluid, sensors, installation needs, and control systems.
• Configure and integrate equipment: Set up fluid analyzers and liquid‑cooling load banks; support integration with cooling units, PLCs, building management systems, and data centre monitoring platforms.
• Support installation and commissioning: Check connections, power, grounding, pressure, flow, and sensor setup; help bring equipment safely into operation.
• Troubleshoot and resolve issues: Identify whether problems come from the fluid system, sensors, calibration, electrical connections, or communications.
• Test and validate products: Create test plans, record results, compare measurements against references, and recommend product improvements.
• Train and support others: Teach customers, colleagues, and channel partners how to operate, calibrate, maintain, and diagnose the equipment.
• Prepare technical documentation: Turn site needs and test findings into proposals, system diagrams, equipment lists, and reports.
  

Experience required

• An engineering degree or equivalent practical technical experience in mechanical, electrical, instrumentation, controls, environmental engineering, or a related field.
• At least 3 years of relevant hands‑on experience in application or field engineering, commissioning, testing, or technical support.
• Relevant areas include industrial instrumentation, HVAC or liquid cooling, process analyzers, water or coolant monitoring, data centres, automation, or thermal test equipment.
• Practical knowledge of closed‑loop fluid systems, including pumps, valves, pressure, flow, temperature, sampling, contamination, and corrosion.
• Experience with at least three relevant measurements, such as pH, conductivity, turbidity, temperature, pressure, flow, glycol concentration, or corrosion rate.
• Ability to calibrate instruments using known standards and explain how calibration results are checked.
• Working knowledge of industrial controls and communications, such as 4–20 mA, RS‑485, Modbus, HMI configuration, alarms, and wiring diagrams.
• Strong troubleshooting and test‑planning skills, with clear documentation and professional English.
• Willingness to travel across APAC and work safely at customer sites.
• Experience with data centre liquid cooling, CDUs, cold plates, PLC/BMS/DCIM integration, live‑site commissioning, high‑power electrical systems, or technical partner training.

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.