The recruitment functions of human resources have transitioned from a conventional paper-based system to utilizing the internet through electronic recruitment portals. Electronic recruitment is widely recognized as a strategy that organizations utilize to attract people who possess the necessary education, experience, and abilities. The objective of this study was to evaluate the factors that influence job-seekers' utilization of e-recruitment platforms for job applications in the public sector of Tanzania. The study employed a cross-sectional survey approach to gather both quantitative and qualitative data from Dodoma City. A standardized questionnaire was used to collect quantitative data from 384 job applicants. The interview method was used to acquire qualitative data from ICT officials of PSRS. Job-seekers were chosen through the utilization of a random sample technique, whereas PSRS ICT officials were deliberately recruited. The study's findings indicate that there is a positive and significant correlation between job seekers' use of e-recruitment and their ICT competencies. Thus, the study determined that ICT competencies play a vital role in determining the utilization of the e-recruitment portal of PSRS for job applications. Therefore, the study suggests that PSRS should revamp its portal to enhance its user-friendliness.