Mysten Labs

Mysten Labs

Senior Security Engineer, DeFi

USA (Remote) · Senior · Contract

Sponsorship not specifiedDetected 29 days ago
TypeScriptPythonSQLGraphQLgRPCLLMsAgentic AICybersecurityAccountingLoad Testing5G/LTEResearchCommunication

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37Risky
Cap-exempt (no lottery)0
Sponsors this role80
Entry-level history0
PERM / green-card track0
Lottery odds40
Fits your clock70

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Files H-1B transfers

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About the role

  • Ability to write SQL over large datasets and to work with blockchain indexers and data warehouses. - Experience reading smart contract code at source or the bytecode or disassembly level, or evident ability to learn it quickly.
  • Employment is contingent upon the successful completion of a background check, which may include verification of employment history, education credentials, criminal history, and other relevant information.

Responsibilities

  • Build and run continuous monitoring of the
  • Measure and drive compliance with the
  • Build and run continuous monitoring of the Sui DeFi ecosystem for security and economic risk: oracle issues, misconfigurations/bad economic parameters, solvency and bad-debt exposure under price shocks, liquidation capacity against on-chain liquidity depth, accounting-versus-positions reconciliation, invariants.
  • Measure and drive compliance with the DeFi security recommendations across supported protocols: run the recurring compliance cycle, fill the protocol report card, validate security claims (audits, custody, upgrade governance, oracle dependencies) against on-chain reality, track remediation commitments, and escalate when a protocol regresses or fails to disclose an incident.
  • Partner with the ecosystem and finance owners of the process.
  • Be the security team's point of contact for external DeFi teams and for Mysten's own DeFi products such as DeepBook: due diligence, incident coordination, and post-mortems that feed back into the recommendations and the monitors.

Requirements

  • Bachelor's degree in Computer Science, Computer Engineering, a relevant technical field, or equivalent practical experience.
  • Proficiency in TypeScript and Python, and comfort with Rust.
  • Ability to write SQL over large datasets and to work with blockchain indexers and data warehouses.
  • Strong written and verbal communication, including the ability to influence external teams you have no formal authority over
  • Interest in the web3 space is required.

Nice to have

  • Sui and Move experience: the object and capability model, package upgrades and version gates, programmable transaction blocks, the Sui GraphQL and gRPC APIs.
  • Knowledge of the recent DeFi exploit history on Sui and other chains: named incidents, oracle compromises, and the defect classes behind them.
  • Static or dynamic program analysis experience: taint analysis, call graphs, symbolic execution, fuzzing, formal verification.
  • Quantitative or economic modeling experience: stress testing, liquidity modeling, risk parameters for lending markets.
  • Remember: you can always verify positions on our job boards at www.mystenlabs.com/careers http://www.mystenlabs.com/careers.
  • All hiring decisions are ultimately made by human reviewers.
  • Here at Mysten Labs, you'll be joining a world-class team with tremendous growth potential as we bring the next billion users to web3.
  • Experience reading smart contract code at source or the bytecode or disassembly level, or evident ability to learn it quickly.

Skills

  • Mysten Labs' mission is to advance the internet through step-function improvements in what technology makes possible.
  • Our work spans on-chain finance and the emerging agent economy.
  • Publications, conference talks, CVEs, or bug bounty rankings.

Company info

  • We're looking for a Senior Security Engineer to help protect the Sui ecosystem.
  • Our team is remote first and we are hiring across the world.
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This listing is sourced directly from Mysten Labs's careers page and normalized into a canonical job model.