• Responsible for extending Circle's in-house blockchain systems infrastructure to support the tokenization of the world; • Analyzing requirements, procedures, and problems to improve existing systems and modifying systems; • Building and owning scalable microservices that are responsible for reliable and secure APIs that transfer value and assets across all blockchain protocols as well as traditional banking protocols; • Collaborating with Product and Engineering teams to design, test, and shape Circle features, including developing and documenting system design procedures, testing procedures, and quality standards; • Troubleshooting program and system malfunctions to restore normal functioning; • Building publicly accessible APIs that make it simple for developers to integrate with complex payment systems; • Integrating Platform Services with leading banks and financial technologies; • Consulting with management to ensure agreement on system principles; • Writing the infrastructure to deliver great payment experiences, including data sources (SQL or NoSQL), messaging systems and APIs; • Other duties as assigned.