Smart Contract Developer Assistant Vice President
On-site · London, England, United Kingdom
Job Summary
Design, develop, test, and deploy secure smart contracts across EVM and non-EVM networks to underpin institutional digital asset capabilities; collaborate with product and engineering teams to translate business logic into decentralized logic; build tokenization and lifecycle operations with patterns such as permissioning/whitelisting and proxy/upgrade; own the smart contract toolchain, CI/CD workflows, and audit-ready packages; perform internal security reviews and support external audits to ensure secure-by-design outcomes.
Required Qualifications
- Strong, demonstrable experience developing smart contracts in Solidity or a similar language with a security-first mindset
- Experience across the smart contract lifecycle: design, build, test, deploy, and maintain
- Experience with token standards and advanced token models, including partitioned or permissioned token approaches and proxy/upgrade patterns
- Strong knowledge of secure coding practices for smart contracts and ability to identify/mitigate common vulnerability classes
- Proficiency with smart contract development and deployment tools (such as Hardhat) and modern testing patterns
- Understanding of EVM / Ethereum fundamentals (e.g., smart contracts and EVM execution model)
- Web3 integration experience, including using libraries such as Ethers.js / Web3.js to interact with smart contracts, sign/send transactions, and integrate contract functionality into dApps and services
- Blockchain cryptography fundamentals, including strong understanding of public/private key cryptography, signing/verification concepts, and the role of cryptographic mechanisms (e.g., key management requirements and approved algorithms) in securing blockchain transactions and wallets
- Experience building dApps and integrating front ends with smart contracts (e.g., Web3 interaction patterns)
- Familiarity with institutional digital asset platform components such as tokenization, smart contract management, wallet management, and integration patterns that connect on-chain activity to off-chain services
- Gas optimization and scalability techniques, including awareness of gas-related patterns/protocols (e.g., Gasless transaction approaches such as OpenGSN)
- Exposure to microservices and back-end integration in modern stacks (e.g., NodeJS/Java/C#) and producing technical documentation for architecture and code
- Experience developing for non-EVM smart contract platforms (e.g., Canton/DAML or other non-EVM chains such as Stellar or Solana), including adapting designs to different execution models, tooling, and network fee mechanics
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