About the Role
You will be a senior contributor within our smart contract engineering team, working closely alongside other engineers, product partners, and stakeholders to build the core systems that power high-value decentralized financial applications. This includes work on stablecoin systems, liquidity infrastructure, and broader DeFi protocols, among other emerging on-chain financial products.
You’ll design secure, scalable, and composable smart contracts used in production environments, help shape protocol architecture, and ensure a consistently high standard of security, reliability, and performance across everything the team delivers. You’ll collaborate deeply within the team to bring new on-chain ideas from concept through deployment and continuous improvement.
Key Responsibilities
Protocol Architecture & Technical Contributions
- Contribute to the evolution of protocol architecture, contract design patterns, and security best practices
- Make thoughtful technical decisions around performance, composability, and risk
Smart Contract Development
- Design, implement, and maintain advanced Solidity smart contracts using Foundry
- Build production-grade systems focused primarily on DeFi use cases and high-value financial logic
- Support deployment and lifecycle management across multiple networks
Security, Testing & Reliability
- Build comprehensive unit, integration, fuzzing, and fork testing suites
- Debug complex on-chain systems using traces, simulations, and low-level diagnostics
- Ship audit-ready, production-quality contracts that meet high security standards
Ownership & Execution
Own and deliver end-to-end contract development work streams, including:
- Core protocol components and upgrades
- High-risk, security-sensitive financial logic
- Ongoing maintenance and improvements of deployed systems
Collaboration
- Work closely with Product and Backend engineering teams as an active team member to refine requirements and deliver outcomes
- Contribute to specifications, documentation, and team design discussions
Qualifications
Required Experience
- 4+ years of professional software engineering experience, with strong emphasis on prototyping and new product development
- 3-5+ years of Solidity development experience, with proven production delivery of audited smart contracts
- At least 2 mainnet deployments, ideally powering widely used or financially meaningful applications
- Extensive experience with EVM smart contracts and DeFi-centric development
- Strong proficiency with Foundry or similar frameworks
- Solid understanding of protocol mechanics, gas efficiency, performance, and security fundamentals
- Familiarity with common vulnerability classes and best-practice mitigations
- Proven ability to debug complex systems using traces and simulations
- Comfortable working collaboratively within a team in fast-moving and ambiguous environments
- Excellent written and verbal communication skills
Nice to Have
- Experience participating in or responding to security audits; or writing audit-ready specs
- Experience working on stablecoin projects, with strong understanding of how pegs are designed and maintained; familiarity with other DeFi primitives such as lending or DEXs is a plus.
- Practical understanding of composability risks and protocol integrations
- Experience working on widely used protocols or infrastructure
- Startup or scale-up environment experience
Location and Logistics
East Asia preferred (Tokyo, Singapore, Hong Kong)
