Senior-Smart-Contract-Engineer

Circle
United States
Workplace: RemoteFull timeFunction: Solutions Engineering & Sales EngineeringSkills: ["Solidity","Rust","Gas optimization","Security","Auditing","Threat modeling","Testing frameworks","Foundry","Hardhat","Anchor"]

Join Circle as a Senior Smart Contract Engineer responsible for designing, implementing, testing, and maintaining production-grade smart contracts across EVM and Solana ecosystems. Write secure, gas-efficient Solidity and Rust code, participate in audits and threat modeling with security teams, and collaborate with protocol, infrastructure, and product teams to deliver auditable contracts powering Circle’s decentralized finance platform.

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FursaFursa
Circle
Circle
6 months ago

Senior-Smart-Contract-Engineer

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Source: Company careers pageValidated by: Fursa AI
Last checked: 9 hours agoStatus: Live

Job Summary

Join Circle as a Senior Smart Contract Engineer responsible for designing, implementing, testing, and maintaining production-grade smart contracts across EVM and Solana ecosystems. Write secure, gas-efficient Solidity and Rust code, participate in audits and threat modeling with security teams, and collaborate with protocol, infrastructure, and product teams to deliver auditable contracts powering Circle’s decentralized finance platform.
Location: United States
Workplace: Remote
Employment Type: Full time
Job Function: Solutions Engineering & Sales Engineering
Seniority: Sr. Manager level

Key Responsibilities

  • •Design, implement, and deploy smart contracts for EVM and Solana using Solidity and Rust across multiple blockchain ecosystems
  • •Write comprehensive unit, integration, and property-based tests for contract logic
  • •Research industry-standard design patterns and emerging trends in smart contract development
  • •Collaborate with security teams on audits, threat modeling, and remediation strategies
  • •Monitor deployed contracts and support incident response as needed

Key Requirements

  • •Proficiency in designing and writing production-grade smart contracts with a focus on security, gas optimization, and performance benchmarking in Solidity and/or Rust
  • •Strong understanding of blockchain architecture, EIP standards, decentralized systems, and on-chain execution
  • •Solid grasp of smart contract security principles, including common vulnerabilities such as reentrancy, access control, and arithmetic errors
  • •Familiarity with smart contract testing frameworks such as Foundry, Hardhat, or Anchor
  • •Experience shipping or operating multi-chain or cross-chain smart contract systems, with familiarity in Web3 fintech or DeFi environments
Experience:BlockchainDeFiWeb3Fintech
Skills:SolidityRustGas optimizationSecurityAuditingThreat modelingTesting frameworksFoundryHardhatAnchor
Languages:English
Tech Stack:SolidityRustAnchorFoundryHardhatEVMSolanaEthereumWeb3

Company Brief

Circle
Provides blockchain-based financial infrastructure and stablecoins (notably USDC and EURC) and payment solutions for enterprises, developers, and financial institutions to enable programmable money and global payments.
Industry: Fintech Infrastructure
Company Size: Large (251 to 1,000 employees)
Revenue: USD 1B+
Growth: Public Company
Valuation: Public Company (Market Cap in USD)
Funding: IPO / Publicly Listed
Headquarters: New York City, United States
Founded: 2013
Glassdoor
Glassdoor: 4.1
WebsiteLinkedInGlassdoor