Senior Blockchain Engineer | DeFi, Smart Contracts, AI Systems

Proprietary Trading Systems / R&D

About the Project

R&D project focused on developing proprietary blockchain trading infrastructure for DeFi markets. The system was designed to identify and simulate arbitrage opportunities across decentralised exchanges, assess execution profitability within real on-chain constraints, and prepare transactions for low-latency execution. The project included off-chain route discovery, pool price analysis, swap simulation, gas and slippage estimation, flashloan-based execution logic, and integration with Ethereum-compatible infrastructure. The target users were internal trading and research teams working with DeFi strategies, MEV-aware execution, and automated market opportunity detection.

• Blockchain

Responsibilities

- Designed and developed a high-performance arbitrage engine using JavaScript and Rust components focused on low-latency market analysis. - Built simulation pipelines for evaluating thousands of transaction paths within a single blockchain block window. - Implemented DEX price fetching, Uniswap V2/V3 pool analysis, route validation, profitability calculation, gas and slippage estimation, and execution preparation. - Integrated MEV-aware workflows, including private mempool and Flashbots-style execution logic, to reduce front-running and execution risk. - Optimized off-chain computation while keeping strict alignment with on-chain constraints such as pool liquidity, gas dynamics, swap fees, flashloan costs, and block timing.

NDA NFT Game / Collectible Ecosystem

About the Project

NDA blockchain gaming project focused on an NFT-based collectible ecosystem similar to CryptoKitties. The product included smart contracts for NFT ownership, minting, breeding mechanics, metadata handling, and asset transfer flows. The system was designed for users interacting with digital collectibles inside a game economy, where each NFT represented a unique in-game asset with its own traits and lifecycle. The project required scalable contract architecture, gas-efficient logic, secure ownership handling, and reliable integration with frontend and backend game systems.

• Blockchain

Responsibilities

- Worked on full-cycle development of NFT smart contracts for a collectible blockchain game. - Implemented minting logic, breeding mechanics, NFT metadata handling, token ownership flows, and transfer-related contract logic. - Designed and optimized core contract architecture with focus on scalability, gas efficiency, and security. - Reviewed contract behavior under different user scenarios, tested edge cases, and improved reliability of on-chain game mechanics. - Collaborated on integration requirements between smart contracts, game backend, and user-facing product flows while maintaining NDA restrictions and production-quality development standards.

Cyber Unit

About the Project

Cybersecurity and smart contract auditing work focused on DeFi protocols, EVM-based applications, and blockchain infrastructure. The work involved analyzing smart contracts for vulnerabilities, identifying attack vectors, reviewing protocol logic, and preparing technical reports with actionable remediation steps. The target audience included blockchain teams, DeFi protocols, and Web3 companies requiring independent security review before deployment or after major protocol changes.

• Blockchain

Responsibilities

- Conducted security audits of DeFi and EVM-based smart contracts, identifying vulnerabilities, protocol risks, and potential attack vectors. - Performed static and dynamic analysis using tools such as Slither and Ganache, reviewed contract architecture, checked access control, token flow logic, and economic assumptions. - Prepared structured vulnerability reports, proof-of-concept scenarios, and remediation recommendations for development teams. - Helped improve protocol security by identifying design flaws, implementation bugs, unsafe assumptions, and potential exploit paths before production deployment.