Mysten Labs

DeFi

• Build and run continuous monitoring of the Sui DeFi ecosystem for security and economic risk
• Extend security team tooling, including precise static analysis tooling and proprietary agent skills
• Measure and drive compliance with DeFi security recommendations across supported protocols
• Run recurring compliance cycles, complete protocol report cards, validate security claims against on-chain reality, track remediation commitments, and escalate regressions or undisclosed incidents
• Hunt for critical vulnerabilities in high-TVL Sui protocols through full-package audits, variant analysis across forks, pre-execution review of multisig upgrade payloads, and incident forensics
• Serve as the security team's point of contact for external DeFi teams and Mysten's DeFi products, including DeepBook
• Conduct due diligence, coordinate incidents, and lead post-mortems
• Write findings, reports, and runbooks that are actionable for protocol engineers and understandable to non-technical stakeholders
• Ensure claims are traceable to bytecode, chain state, or data

Senior Security Engineer, DeFi

Product Designer

• Set the design vision, principles, and priorities with product, engineering, and business leadership
• Own the end-to-end experience across DeepBook spot, margin, prediction products, liquidity workflows, and related first-party applications
• Lead core journeys including onboarding, funding, market discovery, order entry, transaction review and signing, portfolio and position management, collateral, liquidation risk, settlement, and failed-state recovery
• Design experiences for retail traders, experienced DeFi users, market makers, liquidity providers, institutions, and developers
• Frame problems, develop concepts, prototype, test, and review implementation quality
• Build a scalable design system and shared interaction patterns for dense financial data, charts, tables, order entry, account states, alerts, and risk communication
• Establish a research program using interviews, usability studies, product analytics, support feedback, and market observation
• Partner with engineering on protocol behavior, transaction states, latency, data dependencies, security boundaries, and platform constraints
• Collaborate with legal, security, marketing, business development, and ecosystem teams to launch products responsibly and communicate financial concepts accurately
• Define design and product quality measures connected to activation, conversion, trading success, retention, support burden, and user trust
• Build and develop a design team covering a growing product surface

Senior Security Engineer, DeFi

Staff Product Designer, DeFi