BitGo is seeking a Senior Software Engineer for their HeightZero team. The role involves designing and building scalable APIs, libraries, and services to integrate blockchains and BitGo functionality into HeightZero products. Responsibilities include owning functionality and scalability features, building integration libraries and SDKs, exposing and documenting functionality, collaborating with engineering teams and product managers, and providing mentorship. The ideal candidate should have at least 6 years of backend software development experience, strong skills in TypeScript/Node.JS, and experience with various databases and distributed systems. The position offers competitive compensation, including base salary, bonus, stock options, and comprehensive benefits. BitGo provides a dynamic startup environment focused on disrupting the financial services industry through cryptocurrency and blockchain technology.