Principal Software Engineer to the Chief Technology Officer (CTO) Office

The Company is seeking a Principal Software Engineer to work closely with technology leadership on the architecture, security, and technical foundations of complex software systems. This hands-on individual contributor will identify high-impact challenges, research and evaluate solutions, and take initiatives from design and prototyping through production and operation. Responsibilities include advancing backend services, APIs, distributed systems, data infrastructure, and core product engineering, while strengthening transaction security, identity and access controls, cloud infrastructure, and secure software delivery. The role also involves building reusable tooling and automation, investigating issues across application and infrastructure boundaries, and mentoring engineers while helping teams make sound technical decisions. Candidates should bring extensive hands-on experience designing and building complex production systems, excellent programming skills, and deep knowledge of backend engineering, distributed systems, and software architecture. Experience with cloud infrastructure and security, along with the ability to reason about threat models, trust boundaries, and failure scenarios, is essential. The role requires a record of leading cross-team technical initiatives from research through implementation, strong independent problem-solving and communication skills, and sound judgment balancing security, reliability, performance, and developer productivity. Experience with systems languages, cloud-native infrastructure, secure software delivery, cryptography, or financial and digital asset systems is an advantage.