To obtain a NICU position as a certified nurse assistant (CNA), you must follow the same educational path as other CNAs. You need at least a high school diploma or equivalent and must complete a CNA certification program. These programs are available at vocational schools and online, and usually take six to twelve weeks to finish. Many CNAs work in other departments at a hospital to gain hands-on experience in the field before applying for jobs in the NICU. Additional qualifications for this role include experience collaborating with a team, excellent communication skills, and the ability to remain calm under pressure.