A Staten Island man made “unauthorized credit card transactions” that cost a Roslyn Heights company more than $50,000 in losses, then tried to hide the crime by falsifying those transactions to “third party clients,” Nassau County police said.

Police said Ryan Dambra, 33, of Fieldway Avenue, was arrested at his home at 1:55 p.m. He was charged with second-degree grand larceny and first-degree falsifying business records and faces arraignment Friday in First District Court in Hempstead.

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It was not clear if Dambra is represented by counsel.

Police said that between November 2015 and August, Dambra “conducted unauthorized credit card transactions” while employed by Kings Building Material Supply on Powerhouse Road in Roslyn Heights. Those transactions led to losses “in excess of $50,000” for Kings.

It was not immediately clear how the scheme was uncovered. The Crimes Against Property Squad continues to investigate the matter, asking anyone with information about Dambra to call them at 516-573-5275. All calls will remain confidential.