TU Delft is offering a postdoctoral position focused on stack engineering for acid-base flow batteries for long-duration energy storage. The role involves experimental research on stack design, flow fields, spacers, electrolytes and membranes to improve power density, energy density and lifetime. The postdoc will study operational conditions, develop sensors for performance analysis and investigate flow distribution using advanced characterization techniques. The position is part of a national consortium and includes close collaboration with industrial partners, particularly AQUABATTERY.