Senior Facilities Engineer (Water Treatment System)

Coherent Corp., named to Forbes’ 2026 America’s Best Companies, is a global leader in the datacenter and communications industries. Headquartered in Saxonburg, Pennsylvania, USA, and founded in 1971, Coherent operates in over 20 countries worldwide. Since entering Vietnam in 2005, Coherent has expanded to more than 3,200 employees across Ho Chi Minh (VSIP1), Dong Nai (Nhon Trach 1), Hanoi, and Bac Ninh (Yen Phong IP). As part of our global growth strategy and commitment to developing local talent, we aim to create over 8,000 new job opportunities in Vietnam within the next five years through hundreds of millions of dollars in investment projects.

Work Location: Nhơn Trạch 1, Đồng Nai.

Senior Facilities Engineer to manage and maintain the DI water treatment system that supports manufacturing operations.

This role ensures the facility systems run reliably, meet water quality requirements, and support production with stable utilities.

KEY RESPONSIBILITIES

• Operate, maintain, and improve the DI water treatment system (RO, IX, EDI, UF, wastewater systems).
• Monitor water quality parameters such as resistivity, pH, turbidity, silica, and TOC to ensure system performance.
• Troubleshoot system issues such as membrane fouling, scaling, or equipment failures.
• Plan and implement preventive and predictive maintenance for water treatment equipment.
• Work closely with production, engineering, and quality teams to ensure stable facility operations.
• Support facility upgrades, system improvements, and new equipment installation.
• Prepare technical documentation, SOPs, and maintenance reports.
• Train technicians and operators on system operation and safety practices.
• Ensure compliance with EHS regulations, ISO standards, and company safety requirements.

Education

• Bachelor’s degree in Chemical Engineering, Environmental Engineering, Mechanical Engineering, or related fields.

Experience

• At least 5 years of experience in water treatment systems in a manufacturing environment.
• Experience in electronics or semiconductor factories is a plus.

Skills

• Good knowledge of water treatment technologies such as RO, ion exchange, membrane systems, or wastewater treatment.
• Strong troubleshooting and problem-solving skills.
• Basic knowledge of PLC or SCADA systems is an advantage.
• Good teamwork and communication skills.
• Able to work independently and handle technical issues effectively.

What We Offer:

• Flexible Working Hours: Standard 40-hour workweek with flexible arrangements to support work-life balance and productivity.
• Flexible Working Location: Employees are entitled to 6–12 flexible working days per calendar year, depending on the position.
• Free Shuttle Service: Staff transportation from Dong Nai and Ho Chi Minh City to our offices in Nhon Trach and VSIP1.
• Competitive Compensation Package: Competitive salary with annual reviews, plus allowances for accommodation, transportation, parking.
• Attractive Annual Bonus: From 1.96 to 4.00 months of salary, including the 13th-month bonus (effective for new offers from July 2025).
• Premium Health Insurance: Comprehensive BVH coverage for employees, with optional family inclusion.
• Employee Well-being & Development: Training programs, annual health check-ups, holiday gifts, travel opportunities, sports events, and more.

At Coherent, our people are the driving force behind our success. Through continuous improvement in talent acquisition and management, we deliver a seamless and inclusive experience that empowers individuals to thrive. Our commitment to diversity, equity, and inclusion ensures every candidate and employee is valued, supported, and positioned to make meaningful contributions to our mission and long-term growth.

Join Coherent and become part of a team, today.