Combining the inspirations of the power resources approach with the literature on the infrastructural power of big tech companies, two main research questions are formulated: What kinds of power resources are mobilised by workers in Poland and Italy to counteract the infrastructural power of Amazon? First, forms of workers' collective mobilisation are mediated but not determined by traditional trade union power resources, national institutions and employment and business practices of Amazon. Second, the Amazon effect is also visible in the international diffusion of some repertoires of discontent through union networks and critical media discourse, parallel to the diffusion of coercive company management practices.