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◆ 6/10
cryptoweb3rwafintech
About this role
Join Circle as a Senior Smart Contract Engineer to design and implement production-grade smart contracts and backend services, optimizing performance and ensuring security.
Description
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.
Responsibilities
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
Requirements
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
Job Details
Market range (est.)$120k–$245k
LocationRemote
AI Score★★★★★★☆☆☆☆ 6/10
PostedAug 22, 2026 (51d ago)
Tags & Skills
cryptoweb3rwafintechdefiSmart Contract Developerremote
Tech Stack
SolidityRustAWSGCPAzure