Shortly after completing her studies at the nursing academy, Junaiti began to work as a nurse at the Dr. Cipto Mangunkusumo Hospital. She started lecturing at UI's nursing department on 1 January 1992 and was appointed as the chief of employee, administration, and general affairs of the department in 1994. The department, previously under the auspices of the medicine faculty, was established as a separate faculty in late 1995. Junaiti's position was elevated to second deputy dean for administrative and financial affairs,[5] and he served in the position until 1999. Around the same time, from 1998 to 1999 Junaiti was also appointed as the head of the emergency operating room in Dr. Cipto Mangunkusumo Hospital.[2]
At the end of her tenure as deputy dean, Junaiti was sent by the-then dean of the nursing faculty, Azrul Azwar, to pursue doctoral studies at the Queensland University of Technology. She received her doctoral degree from the university in 2003.[6] Upon returning to Indonesia, Junaiti was appointed as the head of the undergraduate and profession program. A year later, Junaiti was selected as the chair of the faculty's academic senate and ethics committee. Junaiti was then transferred to head the masters and specialization department from 2005 to 2007.[2][3]
Junaiti returned to her old post as deputy dean in 2008, where she served for a five-year term under dean Dewi Irawati.[3] During this period, Dewi and other deans in UI issued a motion of no confidence to the-then rector Gumilar Rusliwa Somantri, which resulted in her dismissal from the position. The controversial decision appointed Junaiti as the faculty's acting dean.[7] The decision was later cancelled following a meeting between the university's board of trustees and the minister of education.[8]
On 8 January 2014, Junaiti was installed as the new dean of the faculty.[9] During her tenure, the faculty cooperated with the Jakarta regional government to provide healthcare services for residents, particularly those living in slum areas. The initiative, which involves students and faculty members, includes health screenings, consultations, and referrals to health centers if needed. The program is integrated with the practical training of nursing students, including professional, master's, and specialist students, addressing health issues across different age groups.[10]
In 2016, Junaiti criticized the health minister's decision to dissolve the directorate of nursing services from the department. Junaiti argued that the dissolution weakened policy direction for nurses and that the department did not pay enough attention to the well-being and career of nurses in Indonesia.[11]
Junaiti ended his tenure as dean in 2018 and was replaced by Agus Setiawan,[12] who was previously the head of the nursing faculty's administrative center under her.[13] Junaiti was then entrusted to head the faculty's doctoral programme. On 1 June 2020, she was appointed by the minister of education as a full professor in nursing,[2] making her the 13th nurse to be appointed as a full professor.[3] Her inaugural speech, titled The Role of Community Nurses in Increasing Family Resilience with the Elderly in the Era of Adapting to New Habits, was read on 27 March 2021. In her speech, Junaiti emphasized the crucial role of community nurses in enhancing family resilience, particularly for the elderly, during the COVID-19 pandemic. She highlighted the importance of community nurses acting as providers, educators, and facilitators to prepare families for the new normal and improve overall health outcomes.[14]