Abstract: Organizations invest heavily in digital tools, sustainability initiatives, and wellness programs, yet struggle to translate these investments into sustained performance gains. This fragmentation reflects a deeper challenge: modern workplace resources are often managed as isolated interventions rather than integrated systems that shape holistic employee experience. Drawing on recent empirical evidence and the Job Demands–Resources (JD-R) and Resource-Based View (RBV) frameworks, this article introduces Employee Experience Capital (EEC)—a unified construct integrating digital autonomy, inclusive cognition, sustainability alignment, AI synergy, mindful design, learning agility, and wellness technology. We examine how these resource bundles enhance organizational performance through dual psychological pathways: work resonance (value alignment and meaning) and employee vitality (energy and self-regulation). Evidence demonstrates that while employee well-being directly supports performance, it functions as a contextual enabler rather than a boundary condition. The article offers practitioners a structured roadmap for building resource-rich environments that convert employee experience into measurable business outcomes, emphasizing that sustainable competitive advantage emerges not from single initiatives but from coherent resource ecosystems that simultaneously energize employees and align them with organizational purpose.