Deel is a global platform for hiring, paying and managing employees and contractors. Its offering includes local and international payroll, an HR system for all worker types, IT equipment management, benefits, international hiring and visa support. According to Wikipedia, Deel also acts as an employer of record, hiring staff on a client's behalf through its own local entities. You use the platform through the web.
Deel, Inc. is a US company, incorporated in Delaware and privately held; it operates largely remotely. According to its security page, the infrastructure is fully hosted on AWS, with primary operations in Ireland and a disaster recovery site in France. Deel lists SOC 2 and ISO 27001 certifications there. The page contains no formal data residency statement; for that, Deel refers to its Trust Center. For a European organisation this means data can be hosted in the EU, while the company itself falls under US jurisdiction.