The key success for an organization with a millennial workforce to win the competitiveness of the business industry in 4.0 era is having a compatible model of work engagement. In 2020 millennials will dominate, up to 75% of the labor force. Therefore it is necessary to scientifically inquire deeper on this generation. This research adopts the Job Demand Resources Model (JD-R) as a theoretical framework. It specifically aims to analyze the most suitable work engagement model among millennials who work at state-owned companies. Predictor variables in this research are job crafting and meaningful work as a mediator.  This quantitative research (N=318) uses scaling for data collection and Structural Equation Model (SEM) to test the data. This research found: (1) work engagement model fits for the millennial workforce; (2) job crafting has direct significant effect to work engagement; (3) meaningful work plays as a mediator between job crafting and work engagement.