The successful candidate will conduct an initial assessment of the current tax calculation architecture within Avaloq, evaluating existing system design, data flows, and integration points. Based on this assessment, they will produce a proposal identifying the optimal target system architecture going forward, weighing the trade-offs between continuing with the existing setup versus transitioning to an alternative. The role also involves working closely with stakeholders across tax, technology, and operations to validate findings and ensure recommendations are commercially and technically sound, along with producing clear documentation suitable for both technical and non-technical audiences.