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Company Summary

Company Reviews

Calderys is a leading global provider for industries operating in high-temperature conditions. The Group specializes in thermal protection for industrial equipment with a wide range of refractory products and advanced solutions to enhance steel casting, metallurgical fluxes, and molding processes. With a presence in more than 30 countries and a strong footprint in the Americas through the brand HWI (HarbisonWalker International), Calderys’ international network of experts ensures an end-to-end offer with tailored services.
Drawing on over 150 years of experience, Calderys supports its customers in their energy transition needs. Headquartered in Paris, France, the Group counts 4,500 employees (excluding contractors), and 50 plants on five continents.

Calderys - Forged in legacy. Fueled by excellence.

Rating Reviews

Rating is calculated based on 11 reviews and is evolving.

Featured Reviews

Process Engineer
3.6
29 April 2026
Stable, Supportive Environment for Industrial Professionals
Pros: Calderys offers great job security in the industrial materials sector. As a Process Engineer, I've had solid learning opportunities, especially with specialized refractory solutions. The teams are really collaborative, and it's a stable environment overall.
Cons: Career advancement can feel a bit slow sometimes, and there are occasional bureaucratic steps for approvals. Communication between departments could also be improved for better efficiency.
Advice to Management: Focus on streamlining internal approval processes and enhancing cross-departmental communication to accelerate project timelines and improve overall efficiency. Investing in clearer career pathing could also boost employee morale and retention.
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Process Engineer
3.1
1 February 2026
Decent Work-Life Balance for Industrial Roles
Pros: As a Process Engineer, my hours were usually pretty consistent, around 45 hours a week. There's some flexibility if you need to WFH occasionally, which is nice for an industrial manufacturing company.
Cons: Project deadlines for new refractory materials could sometimes mean longer days, especially if you're onsite. There's not a lot of work flexibility beyond that, so don't expect full remote options.
Advice to Management: Try to staff projects better to avoid crunch times. Give more support to the onsite teams, especially when deadlines are tight.
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Process Engineer
3.0
22 February 2026
Growth is Possible if You Push Hard
Pros: I've learned a lot as a Process Engineer working on diverse projects in the refractories industry. There's good exposure to different manufacturing sites. If you show initiative, they'll usually let you take on more.
Cons: Career growth isn't well-defined; you have to actively seek opportunities. Promotions often feel like a battle in this big company environment. Sometimes it's hard to see what's next for your career here.
Advice to Management: Make career advancement paths more transparent for technical staff. Provide better mentorship programs and proactively identify talent for promotion.
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Common Questions About Calderys

What is the general working culture like at Calderys for technical roles?
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