• Design, build, and maintain secure smart contracts. • Collaborate closely with technical leads, researchers, and partner teams.

• Develop and maintain smart contracts that implement the Wanchain Message Bridge Protocol • Write high-quality Solidity code • Implement and interact with various interfaces provided by the Wanchain Message Bridge Protocol • Leverage the Wanchain Message Bridge Protocol for cross-chain communication • Prioritize the security of smart contracts • Create comprehensive documentation for smart contracts • Conduct thorough testing of smart contracts • Optimize smart contract code to maximize gas efficiency

• Building secure, high-value smart contracts on EVM • Collaborate with auditors and write audit-friendly test cases • Prioritize security and ensure reliable deployment • Communicate with auditors and revise code based on feedback • Maintain knowledge of common vulnerabilities and security practices

Senior/Lead EVM Engineer - Distributed Ledger Optimization Location: Remote - US Compensation: Competitive We are a fast-growing software company dedicated to supporting and evolving a leading open-source, proof-of-stake distributed ledger platform. Our network is EVM-compatible and specifically engineered to meet the demands of enterprise and Web3 applications that require industry-leading speed, security, and sustainability. We are looking for a Seasoned Java Engineer with deep blockchain protocol experience to join our Smart Contracts Team. In this role, you will be a key contributor to the evolution and optimization of our EVM implementation. You will work on a "plain Java" codebase (no heavy frameworks) where high performance, low latency, and high throughput are the baseline requirements. Key Responsibilities: - Collaborate daily on the design and implementation of core blockchain features. - Innovate on transaction processing, execution algorithms, and EVM opcodes. - Bridge the gap between the Ethereum roadmap and our native network innovations. - Contribute to open-source clients focusing on VM state transitions and performance improvements. - Implement community-requested improvement proposals (HIPs). - Test and validate the EVM using both Ethereum community tools and native consensus node testing suites. - Focus on Craft: Spend approximately 80% of your time designing, coding, and testing.