Research summary: In knowledge‐based industries, continuous human capital investments are essential for firms to enhance capabilities and sustain competitive advantage. However, such investments present a dilemma for firms, because human resources are mobile. Using detailed project‐level operational, financial, and human capital data from a leading multinational firm in the global IT services industry, this study finds that deliberate investments in improving general human capital can help firms develop superior capabilities and maintain high profits. This paper identifies two types of capabilities essential for success in this industry—technological and business‐domain capabilities—and provides empirical evidence justifying such investments. Theoretical and practical implications of capability‐seeking general human capital investments are discussed. Managerial summary: The primary managerial implication of this research is that capability‐seeking investments in developing general human capital through strategic learning (training and internal certifications) can enhance firm performance. Although investing in general human capital is risky, the firm considered this a strategic necessity in order to thrive in the fast paced IT services industry. By leveraging general technological skills in combination with business‐domain knowledge to address customer's business problems firms can earn and sustain higher profits. Our study also demonstrates how a developing‐country firm responded to strong competitive challenge from global rivals possessing superior capabilities by upgrading the capabilities of its employees through internal development. In doing so the firm was able to narrow the capability gap vis‐à‐vis its foreign peers and expand its business globally. Copyright © 2016 John Wiley & Sons, Ltd.