PurposeThis paper aims to synergize the Job Demands-Resources (JD-R) theory with the Intelligent Career theory (ICT) to identify the potential influence of career competencies (CCs) on individual work performance.Design/methodology/approachWe explore a motivational process within JD-R theory, where CCs such as knowing-why, knowing-how, and knowing-whom serve as personal resources to optimize contextual performance (CP), task performance (TP), and reduce counterproductive work behavior (CWB). The study comprises two phases with samples of human resource (HR) professionals in India. Phase-1 (N = 107) involves adapting measurement instruments through exploratory factor analysis, while phase-2 (N = 396) tests the model using structural equation modeling. We applied the confirmatory factor analysis marker technique, with “conflict avoidance” as the non-ideal marker variable.FindingsOur research indicates that CCs positively influence TP based on statistical and substantive significance. However, their influence on CP and CWB lacks substantive significance.Research limitations/implicationsThis study enhances the JD-R theory by highlighting individual performance as a key outcome of personal resources, like CCs, within the theory’s motivational process.Practical implicationsOrganizations can structure skill development programs to align with specific CCs and desired outcomes, using them as benchmarks to assess effectiveness.Originality/valueTo our knowledge, this is the first attempt to apply both JD-R theory and ICT in a work context, specifically among Indian HR professionals, which remains an unexplored area. Additionally, we assume that CCs may initiate motivation independently, even in the absence of job resources.