Solenis is a leading global provider of water and hygiene solutions. The company’s product portfolio includes a broad array of water treatment chemistries, process aids, functional additives, cleaners, disinfectants, and state-of-the-art monitoring, control and delivery systems. These technologies are used by customers to improve operational efficiencies, enhance product quality, protect plant assets, minimize environmental impact, and create cleaner and safer environments. Headquartered in Wilmington, Delaware, the company has 70 manufacturing facilities strategically located around the globe and employs a team of over 16,500 professionals in 130 countries across six continents. Solenis is a 2025 Best Managed Company Gold Standard honoree.

For more information about Solenis, please visit www.solenis.com.

About the Role

We are looking for a highly skilled and analytical Senior Technical Service Engineer to join the team in Thailand.

In this role, you will act as the primary technical advisor to customers, supporting the implementation and optimization of Solenis’ chemical solutions in industrial and manufacturing operations. You will play a key role in troubleshooting, process optimization, and delivering measurable customer value, while collaborating cross-functionally with commercial and technical teams.

Key Responsibilities

• Act as the primary technical contact for pulp & paper mills within the assigned territory

• Provide on-site technical support for paper manufacturing processes, including stock preparation, wet end, press, dryer, and water systems

• Troubleshoot paper machine performance issues using structured root cause analysis (e.g., runnability, deposits, breaks, quality variation)

• Optimize chemical programs such as Retention & Drainage, Strength Enhancement (dry & wet strength), Deposit, Pitch & Stickies Control, Defoamers & Foam Control and Microbiological Contro

• Conduct system audits, machine surveys, and performance evaluations to improve productivity, efficiency, and paper quality

• Lead product trials, start-ups, and scale-up activities at customer’s site

• Deliver technical training and application workshops for mill operators, engineers, and technical teams

• Build strong working relationships with mill production managers, process engineers, and quality

• Collaborate closely with Sales, Product Development, Quality, and Supply Chain teams

• Prepare technical reports, monitor performance metrics, and identify continuous improvement opportunities

Qualifications

• Bachelor's Degree in Chemical Engineering, Pulp & Paper Technology, Industrial Chemistry, Environmental Engineering, or a related field.

• Minimum 5 to 8 years of experience in technical service, process engineering, application engineering, production support, or customer-facing technical roles within the pulp & paper industry, specialty chemicals, water treatment, or related industrial process industries.

• Hands-on experience supporting paper manufacturing processes and chemical applications such as Retention & Drainage, Strength Enhancement, Deposit & Pitch Control, Stickies Control, Defoamer Programs, Microbiological Control, Process Water Treatment, and Boiler/Cooling Water Treatment is highly desirable.

• Strong understanding of paper machine operations, wet-end chemistry, process optimization, and troubleshooting of manufacturing challenges.

• Strong troubleshooting and analytical problem-solving skills.

• Ability to interpret process data and translate findings into practical solutions and customer value.

• Strong communication, presentation, and training skills.

• Willingness to travel regularly to customer sites across Thailand.

What We Offer:

• Continuous professional development with many opportunities for growth

• Access to a wide variety of internal and external training courses on our learning system

• Hybrid working set-up

We understand that candidates will not meet every single desired job requirement.  If your experience looks a little different from what we’ve identified and you think you can bring value to the role, we’d love to learn more about you.

Be part of a high-growth company where your career can thrive.

At Solenis, we understand that our greatest asset is our people. That is why we offer competitive compensation, and numerous opportunities for professional growth and development. So, if you are interested in working for a world-class company and enjoy solving complex challenges, consider joining our team.