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Welcome to our careers site

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SSI Service Fire Systems UK is a company within the Réseau DEF.

SSI Service Fire Systems UK is one of the largest independent and fully accredited fire safety companies in the United Kingdom.

We design, supply, install, commission, and maintain fire alarm systems, as well as associated equipment, including all third-party devices and emergency lighting.

With offices across the UK, our regional engineers are available 24/7 to ensure the compliance, reliability, and longevity of your fire safety systems.

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About Réseau DEF

Réseau DEF, an unconventional European leader in fire safety

Réseau DEF is a unique international network of over 60 expert companies dedicated exclusively to fire safety. Our mission is to save lives and protect property.

Today, we are one of the leading players in the European market.

Our growth and success over more than 60 years are primarily driven by our people—women and men who work in a distinctive collaborative way and who remain our greatest asset.

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