Technical Sales Intern - Industrial Water Treatment

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 78 manufacturing facilities strategically located around the globe and employs a team of over ~23000 professionals in >160 countries across six continents. Solenis is a 2025 Best Managed Company Gold Standard honoree.

For additional information about Solenis, please visit (Use the "Apply for this Job" box below). follow us on social media.

Who we are

Solenis is a leading global producer of specialty chemicals focused on delivering sustainable solutions for water-intensive industries, including consumer, industrial, institutional, food and beverage, and pool and spa water markets. Owned by Platinum Equity, the company's product portfolio includes a broad array of water treatment chemistries, process aids, functional additives, and cleaners and disinfectants, as well as state-of-the-art monitoring and control 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 78 manufacturing facilities strategically located around the globe and employs a team of over 23,000 professionals in 160 countries across six continents. Solenis is a 2025 US Best Managed Company, recognized five years in a row. For more information about Solenis, please visit

The Role:

As an Industrial Water Treatment Technical Sales Intern, you'll dive into real commercial projects at our customers' power, chemical manufacturing and petroleum refinery facilities. You'll build hands-on industry know-how, own a project, and get an exciting "test drive" of what a career in technical sales can look like.

What you'll do:

• Gain hands-on work experience applying methods and theories learned in class
• Develop new skills and refine others, such as technical acumen, project management, communication, presentation skills, and business acumen
• Work on a specific customer project with tangible deliverables, demonstrating how our solutions meet their needs
• Pair with a Solenis mentor who will provide guidance and feedback during the internship
• Network with professionals in your field
• Get a realistic job preview and the ability to evaluate Solenis as a potential employer

How you'll add value:

• Utilize your analytical and problem-solving skills to find solutions to real-world problems with sustainability and cost performance as your primary drivers
• Embody our Safety Culture via commitment to safety best practices and contributing to a safe work environment for everyone
• Demonstrate excellent interpersonal and communication skills, with the ability to explain technical concepts to non-technical audiences
• Work collaboratively with a variety of people in a team environment and manage multiple tasks simultaneously to add value to our customers
• Apply your coursework in Chemical Engineering, Mechanical Engineering, Chemistry, Microbiology, or other relevant STEM majors

Some perks of working with us:

• Competitive compensation
• Housing stipend for eligible interns
• Continuous professional development with many opportunities for growth, including virtual learning sessions and workshops designed to prepare you to start your career
• Access to a plethora of learning resources for technical expertise and chemical acumen
• No-meeting Fridays, enabling focus time for personal development
• On-Site work arrangement
• Selected interns will have the opportunity to present projects to senior leadership at our Intern Symposium

The locations for our Summer 2027 Intern Locations:

Coming Soon!

(Candidates need to be authorized to work in the country to be placed.)

** Due to the remote and industrial…