In today's labor market, marked by uncertainty and constant change, employability is a crucial resource for navigating career transitions. The shift from education to employment, as well as transitions across different career stages, requires not only technical and specialized skills but also the ability to adapt to new opportunities and challenges. In this context, developing employability skills plays a key role in fostering successful and sustainable career paths. Building on the resource-based model of employability by Lo Presti and Pluviano (2016), we designed and implemented a training and career counseling intervention for groups of master students and recent graduates from three universities from Southern Italy: Caserta, Lecce, and Palermo. The intervention, consisting of six sessions delivered in both in-person and remote formats, aimed to enhance awareness about one's own human capital and promote a positive attitude towards professional development, one's own social capital and the ability to network with significant others, one's own career identity and the ability to self-manage one's own career and, finally, one's own awareness about environmental constraints and opportunities and the ability to deal with them. The intervention combined structured training sessions with personalized career counseling, equipping participants with practical tools and strategies to effectively navigate the transition from education to employment. To evaluate the impact of this intervention, we conducted a three-wave longitudinal study using a quasi-experimental design. Data were collected at three time points: pre-intervention, post-intervention, and three months after the intervention. A repeated measures ANOVA was performed to analyze the data, comparing the intervention groups with a control group to assess changes over time.