The promising branch of quantum computing has made some significant advances in the last decade. With quantum hardware becoming larger in scale and more reliable, quantum circuits are growing in size and becoming more complex in their implementations. In order to face the challenge of achieving optimality for these circuits, the state-of-the-art in quantum computing has employed automated design tools for improving and mapping quantum circuits, each one characterized by a specific optimization strategy. In this thesis, the use of a template-based approach for quantum circuits optimization purposes is explored, and the proposal of a modular compilation toolchain – which supports multiple trending quantum implementation technologies - is presented.