Design, build, and own scalable Golang microservices and secure payment/blockchain APIs. Integrate with banks and cloud services, improve system reliability, document designs, troubleshoot production issues, and collaborate with product and engineering teams to deliver production-quality software.

Build and maintain Circle's blockchain systems and scalable microservices to enable tokenization, secure value-transfer APIs, bank integrations, and developer-facing payment APIs; design, test, document, and troubleshoot production-quality services.

Design, implement, test, and maintain production-grade smart contracts (primarily Solidity and Rust/Anchor) and supporting backend services. Build transaction orchestration, indexing, monitoring, and integrations; optimize gas/performance; collaborate with security and infrastructure teams on audits, upgrades, and production reliability.