Be careful. Fraud offers published in UNOPS org site that are NOT related to United Nations at all.
Please report them here https://careers.un.org/support/careers/default.aspx?lang=en-US
The United Nations is aware of various schemes, being circulated via e-mails, from the Internet web sites, and via regular mail or fax, falsely stating that they are issued by or associated with the United Nations.
These schemes may seek to extract money and in some cases personal details from the recipients of such correspondence. Such schemes are fraudulent.
The schemes consist of letters, sent either via e-mail, fax, regular mail, or from web sites, which appear as various proposals from people purporting to be officials of the United Nations, its Funds and Programmes and other United Nations entities. The correspondence and other documents, e-mails addresses and web sites may be made to look like they originate with the United Nations. For example, they may contain official-looking United Nations stationery, including the United Nations emblem or name, or some variation thereof, and e-mail or web site addresses, including either or both of the words "United Nations" or some similar name, or the name of a real United Nations entity or fictitious one.