Demo

Application Engineering Intern

Culligan Opportunities
Libertyville, IL Intern
POSTED ON 1/3/2026
AVAILABLE BEFORE 3/3/2026

The Engineering Intern performs functions that lead to the improvement of product lines, current processes and tools for costing commercial and industrial systems. This individual has basic knowledge of commonly-used engineering concepts, practices, and procedures. This role reports to the Application Engineering Manager.

Key Position Responsibilities:

  • Utilize typical computer programs (Word/EXCEL/PowerPoint) to build or assist in building written specifications tools used by the application engineers and sales to size and quote projects.
  • Provide new product line development assistance from concept to completion. Including creation of sales tools, collateral, charted drawings and design work. Incorporation of AI is ideal.
  • Work with Culligan proprietary software WebCAAP to update tool with standard product.
  • Work with Principal Engineer Field Service using AI or other tools to compile training manual and assist in updating existing training material in Powerpoint.
  • Learn the basic theory of operation and sizing for water treatment equipment, technologies including Ion exchange, membrane, depth/carbon, chemical injection.
  • Learn about typical components, construction methods and materials for water treatment equipment including pumps, valves, sensors, controls, carbon steel, stainless steel, PVC, etc.
  • Work with the commercial team to understand typical customer requirements (equipment type, materials of construction).
  • Provide feedback and input on possible improvements to design standards and procedures.
  • Seek out mentorship from the Application Engineers to begin learning more in-depth industry standards and complex jobs.
  • Perform other duties as assigned.

Requirements:

  • Upper classman working towards Bachelor of Science degree in Chemical, Environmental, Mechanical Engineering, or another scientific field.
  • Advanced Excel skills, including Visual Basic, Macros, File linkage, Lookups, etc
  • Basic understanding of water treatment systems and processes.
  • Basic understanding of the function of mechanical and electromechanical components including pumps and valves, etc.
  • Working knowledge of Microsoft Office products and Acrobat, Word experience with Reference Tools a Plus.
  • Experience using AI ( Copilot) to improve efficiency ideal.

 

Competencies:

To perform the job successfully, an individual should demonstrate the following competencies in this position:

Customer Focus                     Resourcefulness             Passion           

Planning/Organization         Team Player                  Communication (written & oral)

Integrity                                  Adaptability                 Accountability

 

Compensation & Benefits:

Hourly Pay Rate: $18.00 per hour (non-exempt, hourly position).

Benefits: This position is not eligible for company-sponsored benefits.

Salary : $18

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