HarbisonWalker International internships

No open internships right now

Glass, Ceramics and Concrete Manufacturing · 1001-5000 employees · Pittsburgh, Pennsylvania, United States · thinkhwi.com

HWI is the largest supplier of refractory products and services in the United States, with a history that spans more than 150 years. It is part of Calderys and is the brand for the Americas region of the Group. HWI counts numerous manufacturing sites and strategically placed distribution centers in the Americas, as well as the largest refractory industry research facility in North America.

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HarbisonWalker International has no open internships right now

New openings appear here as soon as they are posted. The roles they have hired for are below.

Past internships at HarbisonWalker International

  • Mining Intern - CSEOpened June 2026 · Last seen August 2026
  • Manufacturing Production Technician SummerOpened June 2026 · Last seen August 2026
  • Payroll Project InternOpened April 2026 · Closed June 2026