No, you do not need to know someone in order to apply for a job at UNOPS. UNOPS is a merit-based organization and all job applicants are evaluated solely on their qualifications and experience related to the position they are applying for.

UNOPS is committed to promoting equal employment opportunities and diversity, and they encourage individuals from all backgrounds and with a variety of skills and experiences to apply for their job openings. The organization also offers various training and development opportunities to help employees further develop their skills and advance their careers.

So, if you meet the qualifications and experience required for a job at UNOPS, you are encouraged to apply, regardless of whether or not you know someone within the organization.