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Overview
Join Circle as a Senior Smart Contract Engineer to design and implement production-grade smart contracts and backend services, optimizing performance and ensuring security. Circle (NYSE: CRCL) is one of the world's leading internet financial platform companies, building the foundation of a more open, global economy through digital assets, payment applications, and programmable blockchain infrastructure. Circle's platform includes the world's largest regulated stablecoin network anchored by USDC.
What you'll work on
- •Design and implement production-grade smart contracts across EVM and/or Solana ecosystems using Solidity and Rust
- •Develop backend services and integration layers that interface with deployed smart contracts and internal systems
- •Optimize smart contract performance, including gas efficiency, while enforcing strong security through secure architecture
- •Build and maintain transaction orchestration flows, event listeners, and indexing services
- •Partner with security teams on audits, threat modeling, remediation, and production monitoring
Core Requirements
- •Proven experience designing and developing production-grade smart contracts in Solidity and/or Rust, with strong emphasis on security and gas optimization
- •Deep understanding of blockchain architecture, EIP standards, decentralized systems
- •Experience with smart contract development and testing frameworks such as Foundry, Hardhat, or Anchor
- •Experience designing and deploying production-grade, scalable cloud services in AWS, GCP, or Azure
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