Virtual Vision Limited

# Job Title Principal Blockchain Architect – Decentralized Exchange (DEX) (Senior DeFi Protocol Consultant / Lead DEX Architect) --- ## Location On-site – Philippines (Relocation or long-term local presence required) --- ## About the Role We are building a production-grade decentralized exchange (DEX) with a strong focus on security, reliability, and operational readiness. We are seeking a highly experienced blockchain architect and DeFi protocol expert to lead the technical design, security architecture, and launch execution of our DEX platform. This is a senior-level, cash-compensated role with full responsibility over protocol architecture and critical technical decisions. Equity is not part of the compensation structure. --- ## Key Responsibilities ### Protocol and Smart Contract Architecture - Design and own the core DEX protocol architecture (AMM, orderbook, or hybrid) - Architect secure, upgradeable, and gas-efficient smart contracts - Define protocol mechanics including fees, liquidity incentives, and execution flows - Identify and mitigate risks related to MEV, oracle manipulation, flash loans, and reentrancy - Lead external smart contract audits and post-audit remediation ### System and Infrastructure Design - Design on-chain and off-chain system architecture - Define indexer, data pipeline, and API strategy - Guide real-time data delivery using WebSocket and event-driven systems - Advise on blockchain node infrastructure and redundancy - Provide architectural guidance for cloud infrastructure (AWS or GCP) ### Security and Operational Readiness - Establish threat models, security standards, and emergency mechanisms - Design multisig, timelocks, circuit breakers, and upgrade governance - Prepare the platform for mainnet launch and production operations - Define monitoring and incident response strategies ### Technical Leadership and Advisory - Act as the final technical authority for protocol architecture decisions - Review and guide internal engineers and external vendors - Clearly communicate technical trade-offs to founders and stakeholders - Produce architecture diagrams and technical documentation --- ## Required Qualifications ### Experience - 8+ years of professional software engineering experience - 4+ years of hands-on blockchain or DeFi development - Proven experience designing and deploying mainnet DeFi protocols ### Blockchain and DeFi Expertise - Deep understanding of EVM-compatible blockchains - Advanced proficiency in Solidity - Hands-on experience with: - AMM-based decentralized exchanges - Orderbook or hybrid trading systems - Core DeFi primitives such as oracles, liquidity pools, and vaults - Strong understanding of gas optimization and protocol-level trade-offs ### Security - Demonstrated experience addressing real-world smart contract vulnerabilities - Strong understanding of DeFi attack vectors and mitigation techniques - Experience working with or coordinating professional audit firms ### Backend and Infrastructure - Experience designing or advising on indexers and blockchain data services - Familiarity with real-time systems and event-driven architectures - Experience with cloud platforms such as AWS or GCP - Comfortable working in Linux-based production environments --- ## Preferred Qualifications - Experience with cross-chain or multi-chain architectures - Knowledge of MEV dynamics and mitigation strategies - Experience designing governance or upgrade mechanisms - Prior experience as a protocol architect or lead engineer - Strong technical documentation and system design communication skills --- ## Work and Engagement Conditions - On-site work in the Philippines is mandatory - Relocation support may be discussed for international candidates - Full-time or long-term consulting engagement available - Flexible start date based on candidate availability --- ## Compensation - Competitive cash-based compensation only - Salary or monthly consulting retainer, depending on engagement model - No equity, token, or ownership component Job Type: Full-time Pay: Up to ₹1,500,000.00 per month Benefits: Food provided Work Location: In person