PurposeThis study aims to propose and examine a research model where work engagement mediates the impacts of high-involvement work practices (HIWPs) on bank employees' turnover intentions. Specifically, the paper assesses: (a) the effects of empowerment, information sharing, rewards and training on work engagement and turnover intention, (b) work engagement as a mediator of the effects of these HIWPs on turnover intention (c) and functional competence as a moderator of the effects of these HIWPs on work engagement.Design/methodology/approachAn online survey was employed to gather data from 343 employees working in commercial banks in Bangladesh. The authors applied partial least squares structural equation modeling to assess the aforesaid linkages.FindingsEmpowerment and information sharing increase bank employees' work engagement, while training and rewards reduce their proclivity to leave. Work engagement partly mediates the relationships of empowerment and information sharing to turnover intention. Functional competence moderates the relationship between three HIWPs (empowerment, information sharing and rewards) on work engagement.Originality/valueThe paper examines the association between HIWPs and turnover intention, which has been subjected to little empirical inquiry among bank employees during a crisis (e.g. Covid-19 pandemic). The paper provides new insights into the underlying mechanism linking HIWPs and turnover intention and highlights the moderating effect of functional competence. Additionally, the study offers new knowledge on the impact of the pandemic on bank employees' HIWPs. Finally, this paper used data gathered from bank employees in Bangladesh, which is an underrepresented Asian country in the extant service research.