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Protocol Engineer (Singapore)

Fun.xyz· Engineering
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Hybrid (Singapore)Full-timePosted 3mo ago

About the role

We’re building the foundation of Web3 payments infrastructure by designing and implementing secure, efficient smart contract systems and blockchain integrations across multiple chains to power millions of transactions.

Responsibilities

  • Design, develop, and deploy secure smart contracts and protocol implementations across multiple blockchain platforms
  • Collaborate with backend and product teams to architect blockchain solutions that meet business requirements
  • Write highly efficient, well-tested code and participate in security audits to ensure protocol safety
  • Research and evaluate new blockchain technologies, protocols, and DeFi primitives for integration opportunities
  • Contribute to incident response and debugging on-chain issues to ensure protocol reliability

Qualifications

  • Strong experience building and deploying production smart contracts on major blockchain platforms
  • Deep understanding of blockchain architecture, consensus mechanisms, and cryptographic principles
  • Hands-on experience with smart contract development languages (Solidity, Rust, Move, etc.)
  • Solid grasp of DeFi protocols, token standards, and cross-chain communication patterns
  • Strong security mindset with knowledge of common smart contract vulnerabilities and best practices
  • Clear communicator who can explain complex blockchain concepts to cross-functional teams

Skills

Required:Smart contract developmentBlockchain architectureCross-chain / interoperabilitySecurity in smart contractsCommunication
Last updated Aug 5, 2026. Interested? Apply on the company site.
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About Fun.xyz

Modern payment infrastructure for fast growing fintechs.

For us, building a company is more about values, than it is about business.

paymentfintechinfrastructuredepositstransactions
Company profileWebsite

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