A growing body of empirical research in vocational psychology has equivocally manifested the importance of psychological resources in sustainable careers. Drawing on a framework of Conservation of Resources theory, the purpose of this paper is to examine the role of the Hope, (Self)-Efficacy, Resilience, and Optimism elements of Psychological Capital as a mechanism for explaining Perceived Employability. We develop a conceptual model and empirically test it using questionnaire data from 421 software engineers working for private IT companies in India. Findings indicate that Hope, Self-Efficacy, and Optimism determine Perceived Employability, and that Resilience and Self-Efficacy are mediators. The theoretical contribution comes from advancing the understanding of sustainable careers by empirically examining how individual elements of Psychological Capital can create resource caravans. These personal resources empower individuals to take ownership of their careers and navigate different contexts over time, offering practical implications for career counseling and benefits to individuals and organizations.

越来越多的职业心理学实证研究模棱两可地表明了心理资源在可持续职业中的重要性。借鉴资源保护理论的框架，本文的目的是检验心理资本的希望、（自我）效能、弹性和乐观要素作为解释感知就业能力的机制的作用。我们开发了一个概念模型，并使用来自为印度私营 IT 公司工作的 421 名软件工程师的问卷数据进行了实证测试。研究结果表明，希望、自我效能和乐观决定了感知就业能力，而韧性和自我效能是中介因素。理论贡献来自于通过实证检验心理资本的各个要素如何创造资源大篷车来促进对可持续职业的理解。这些个人资源使个人能够掌握自己的职业生涯并随着时间的推移在不同的环境中导航，为职业咨询和个人和组织的利益提供实际意义。