Senior Smart Contract Developer

About Hyphen Connect

My client, Hyphen Connect, is a leading Web3 and Decentralized Finance (DeFi) company actively seeking a Senior Smart Contract Developer. This role involves architecting and implementing critical on-chain protocols, ensuring the security and efficiency of decentralized exchange operations.

Core Responsibilities

• Protocol Architecture & Deployment: Architect and implement core on-chain protocols for a Decentralized Exchange (DEX), including capital vaults, clearinghouses, and settlement engines.
• On-Chain Transaction Logic: Develop the underlying logic for clearing and settlement processes, ensuring high-fidelity integration with off-chain high-performance matching engines.
• Oracle System Integration: Design and maintain robust Oracle contract frameworks to support real-time price feeds, data validation, and asset valuation.
• Security & Audit Management: Lead smart contract security hardening initiatives, collaborate with external auditors to rectify vulnerabilities, and oversee mainnet deployments.
• End-to-End Synergy: Partner with backend and QA teams to bridge the gap between off-chain trade commands and on-chain fund movements for seamless execution.

Candidate Requirements

• Academic Background: Degree in Computer Science, Software Engineering, Cryptography, or a related technical field.
• Solidity Mastery: 3+ years of professional Solidity development with deep expertise in EVM mechanics, Gas optimization techniques, and ERC standards.
• DeFi Domain Expertise: 2+ years of specialized experience in DEX clearing and settlement workflows, including sophisticated Oracle integration.
• Multi-Chain Proficiency: Proficient in Rust or Move programming, with the ability to lead contract module development across diverse blockchain ecosystems.
• Ecosystem Knowledge: Strong understanding of the architectural paradigms of high-performance chains such as Solana or Sui.

Preferred Qualifications

• Experience developing advanced vault standards (e.g., ERC-4626, ERC-7540, or ERC-7575) and complex accounting logic.
• Familiarity with advanced security methodologies, including Fuzzing or Formal Verification.
• Proven track record of successful smart contract audits or hands-on experience in incident response and protocol hardening.

Key skills/competency

• Solidity
• Rust
• Move
• Smart Contracts
• DeFi
• DEX
• EVM
• Blockchain
• Security Audits
• Protocol Architecture