We currently pursue our theoretical research along the two major fronts of quantum biology, the radical-pair mechanism and photosynthesis. We believe that there is a whole lot more to discover in the quantum dynamics relevant to these two themes, especially in the albeit difficult to establish connection between microscopic quantum dynamics and macroscopic biological observations. Questions like the fundamental quantum limits to the avian compass mechanism and the charge and energy transport efficiency in photosynthesis are central for our work. Whether real biological systems actually achieve those limits and if not, how to design and build artificial systems that do also forms a major avenue of current and future research in our group, a direction that we term quantum bio-engineering.