The Hi-Desert Medical Center in Joshua Tree will hold walk-in hiring events for registered nurses and certified nursing assistants on Wednesdays through July. On-site interviews for RNs and CNAs will be held in the Helen Gray Education Center on the hospital campus, applicants should bring their resumes. The times and dates are from 10 a.m. to 4 p.m. on June 26, and July 3, 10, 17, 24, and 31.