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UPW Process engineer

Ecolab

Ecolab

Shanghai, China
Posted on Apr 3, 2026

What You Will Do:

· Prepare PID and document relative with technical design;

· Prepare mass balance and relative process calculation;

· Prepare technical specification;

· Communicate with colleague to check design information;

· Communicate with client/supplier to make correct engineering;

· Estimate potential risk of engineering and find good solution;

· Site installation support, site survey according design;

· Support each other and good teamwork;

· Other related, not limited but assigned by supervisor;

Minimum Qualifications:

1. Educational Qualifications

  • Degree: A bachelor's degree is the minimum requirement. However, a master's degree in a relevant field is highly preferred.

  • Discipline: Degrees in Chemical Engineering, Environmental Engineering, or related engineering fields are ideal. Chemical Engineering provides a strong foundation in process design, mass and energy balances, and separation processes, which are crucial for UPW systems. Environmental Engineering can offer knowledge in water treatment, pollution control, and environmental regulations relevant to UPW. Degrees in Materials Science Engineering may also be considered as UPW is often used in semiconductor and high - tech manufacturing where material purity is critical.

2. Language Requirements

  • English: Fluency in English is essential. This is because most of the international literature, equipment manuals, and communication with global suppliers and partners in the UPW field are in English. The engineer should be able to read, write, and speak English proficiently. They will need to write detailed technical reports, participate in international conferences and seminars related to UPW technology, and communicate with multinational teams if the company has global operations or projects.

3. Specific Knowledge

  • UPW System Components: In - depth knowledge of the components that make up an UPW system. This includes reverse osmosis (RO) units, ultrafiltration (UF) membranes, ion exchange resins, ultraviolet (UV) sterilizers, and degasifiers. The engineer should understand how each component functions, its design principles, and how to troubleshoot common issues. For example, knowing how to optimize the performance of RO membranes by adjusting operating parameters such as pressure, flow rate, and temperature.

  • Water Chemistry: A solid understanding of water chemistry is vital. The engineer must be familiar with concepts such as pH, conductivity, total dissolved solids (TDS), and the presence of various contaminants in water. They should know how to analyze water quality data and select appropriate treatment processes based on the source water characteristics and the required purity levels for the end - use application. For instance, understanding how to remove heavy metals or organic compounds from water using chemical precipitation or activated carbon adsorption methods.

  • Process Control and Automation: Knowledge of process control systems used in UPW plants. This involves understanding programmable logic controllers (PLCs), distributed control systems (DCS), and supervisory control and data acquisition (SCADA) systems. The engineer should be able to program and maintain these systems to ensure the stable and efficient operation of the UPW process. They should also be able to implement automated control strategies, such as feedback control based on water quality sensors, to adjust the operation of treatment units in real - time.

  • Industry Standards and Regulations: Awareness of relevant industry standards and regulations. This includes standards set by organizations like ASTM (American Society for Testing and Materials) for water purity in different applications, as well as local and international environmental regulations related to water treatment and discharge. The engineer must ensure that the UPW process design and operation comply with all applicable standards and regulations to avoid legal issues and ensure the quality of the treated water.

4. Years of Experience

  • Minimum Experience: A minimum of 3 - 5 years of experience in a relevant field is required. This experience should preferably be in the design, operation, or maintenance of UPW systems or other water treatment processes. Newly graduated candidates with strong academic backgrounds and relevant internships may also be considered, but they will need to demonstrate a quick learning ability and a good understanding of the UPW process concepts during the recruitment process.

  • Preferred Experience: Candidates with 5 - 8 years of experience are highly preferred. They are likely to have a more comprehensive understanding of UPW systems, having worked on different types of projects, from small - scale pilot plants to large - scale industrial UPW installations. Such candidates may have experience in leading teams, managing projects related to UPW system upgrades or expansions, and have a better understanding of the long - term operational challenges and solutions in the field.

5. Other Skills

  • Problem - Solving Skills: The ability to identify and solve complex problems related to UPW process operations. This may involve diagnosing issues such as sudden drops in water quality, unexpected increases in energy consumption, or equipment failures. The engineer should be able to use analytical tools and techniques, such as root cause analysis, to find the underlying causes of problems and develop effective solutions.

  • Project Management Skills: For candidates with more experience, project management skills are beneficial. They should be able to manage projects related to the installation, commissioning, and optimization of UPW systems. This includes tasks such as creating project plans, coordinating with different departments (such as engineering, procurement, and operations), and ensuring that projects are completed on time and within budget.

  • Teamwork and Communication Skills: Since the UPW process engineer will work in a team environment, good teamwork and communication skills are essential. They will need to collaborate with other engineers (such as mechanical, electrical, and process engineers), technicians, and operators. Effective communication skills will enable them to clearly convey technical information to non - technical staff and to work together towards the common goal of maintaining a reliable and efficient UPW system.

Post Code:001,002


Our Commitment to a Culture of Inclusion & Belonging
Ecolab is committed to fair and equal treatment of associates and applicants and furthering the principles of Equal Opportunity to Employment. We will recruit, hire, promote, transfer and provide opportunities for advancement based on individual qualifications and job performance in all matters affecting employment, compensation, benefits, working conditions, and opportunities for advancement. Ecolab will not discriminate against any associate or applicant for employment because of race, religion, color, creed, national origin,citizenship status, sex, sexual orientation, gender identity and expressions, genetic information, marital status, age, or disability.