As a Senior Android Engineer at Square E-Commerce, you will play a key role in defining the future of e-commerce mobile products, collaborate with teams across Square, develop using native Android technologies, build website editors, and work on seamless integration of online and in-store sales. You will need 8+ years of relevant experience with Android engineering design & implementation, experience with unidirectional data flow and declarative UI frameworks, and the willingness to work collaboratively across teams.