Leader Blockchain

freeC's Client

• Define and develop Smart Contracts/Protocols for a Layer-1 blockchain ecosystem.
• Manage a team of 3–5 Smart Contract Developers, including task allocation, code reviews, and ensuring quality and security standards.
• Contribute to the design of on-chain protocol architecture (governance, consensus-related contracts, tokenomics).
• Collaborate with Backend and Frontend teams to deliver end-to-end integrated solutions.
• Proactively research and adopt emerging blockchain technologies (EVM chain, Substrate, Cosmos SDK, Move).
• Participate in internal audits and develop best practice guidelines for security.

Requirements

• Minimum of 5 years of blockchain development experience, including at least 2 years as a Senior Smart Contract Developer.
• Proficiency in Solidity and at least one additional smart contract language (Rust/Substrate or Move).
• In-depth understanding and practical experience with EVM (Ethereum Virtual Machine):
• Strong knowledge of EVM architecture, gas mechanisms, and storage models.
• Experience deploying and optimizing contracts on Ethereum or EVM-compatible chains (BNB Chain, Polygon, Arbitrum, Optimism, Avalanche, etc.).
• Ability to analyze and interact with EVM bytecode, event logs, and ABI.
• Comprehensive understanding of Layer-1 blockchain mechanisms: consensus, validator, staking, governance.
• Proven experience in designing and implementing complex DeFi protocols (DEX, lending, yield farming, derivative protocols).
• Expertise in smart contract security (reentrancy, flash loans, frontrunning, overflow, auditing).
• Experience with audits or direct collaboration with audit firms.
• Strong team management and mentoring skills for junior and mid-level developers.
• Preference given to candidates with real-world products/protocols, open-source contributions, or deployed contracts on mainnet.

• Lunch allowance: 25,000 VND per day.
• Annual leave: 12 days per year, with an additional day granted after every 12 months.
• 13th-month salary or based on company performance.
• Travel, vacation, team-building activities, holiday bonuses, and support for family events.
• Performance reviews conducted every 6 months.
• Social insurance benefits in accordance with legal regulations.