Senior Engineer, Liquidity Platform, Delta One/Defi

Who We Are At OKX, we believe that the future will be reshaped by crypto, and ultimately contribute to every individual's freedom. OKX is a leading crypto exchange, and the developer of OKX Wallet, giving millions access to crypto trading and decentralized crypto applications (dApps). OKX is also a trusted brand by hundreds of large institutions seeking access to crypto markets. We are safe and reliable, backed by our Proof of Reserves. Across our multiple offices globally, we are united by our core principles: We Before Me, Do the Right Thing, and Get Things Done. These shared values drive our culture, shape our processes, and foster a friendly, rewarding, and diverse environment for every OK-er. OKX is part of OKG, a group that brings the value of Blockchain to users around the world, through our leading products OKX, OKX Wallet, OKLink and more. About the Opportunity Liquidity Platform provides cutting‑edge technology that covers all aspects of crypto trading. We build low‑latency connectivity to global crypto venues, including both Cefi and Defi venues, strategy services for automated pricing and trading bots, high‑frequency data capturing and analysis, and state‑of‑art micro front‑end for trading management. On top of all these infrastructures, we build highly customised strategies to facilitate crypto liquidities. If you are a strong technologist who is excited about the potential of crypto trading, interested in fully‑automated algo bots, we should talk. We are looking for a Web3 Software Engineer for the Liquidity Platform Delta one and DEX strategy Engineering Team. During your tenure with us, you will work closely with a liquidity manager for strategy development using an in‑house build strategy toolkit. You will demonstrate and develop professional capabilities in the following areas: managing inventory & risk of applications, strategic thinking, problem solving, collaborating with product managers, engineers and liquidity managers, effective communication. What You'll Be Doing: Develop and implement cross‑protocol DeFi trading strategies including arbitrage between AMMs, lending protocol optimisations, and yield farming strategies Build sophisticated on‑chain market‑making strategies for concentrated liquidity protocols (Uniswap V3 for example) Analyse on‑chain data to identify trading opportunities across DeFi protocols and optimise strategy parameters Implement gas‑efficient smart contract interactions and optimise transaction execution for profitability Design cross‑chain arbitrage systems leveraging bridges and cross‑chain messaging protocols Build infrastructure for real‑time blockchain data ingestion, mempool monitoring, and on‑chain analytics Develop backtesting frameworks specifically for DeFi strategies considering gas costs and MEV competition What We Look For In You: Deep understanding of DeFi protocols and mechanisms: AMM mathematics (constant product, stableswap, concentrated liquidity) Lending protocol mechanics (AAVE, Compound, etc.) Derivatives protocols (GMX, dYdX, Synthetix) Yield aggregators and vaults strategies (leveraging, auto‑rebalancing, fee‑capture, etc.) Zero‑knowledge proofs (ZK‑Rollups, ZK‑apps) and how they impact DeFi/Trading latency and Gas optimisation Experience with blockchain development and Web3 technologies: Proficiency in languages used for DeFi development (Solidity, Rust, Vyper, Move, JavaScript/TypeScript) Web3 Tooling (ethers.js, web3.js, web3.py, hardhat, Foundry, Truffle, etc) Understanding of EVM mechanics and gas optimisation, opcodes, upgrade patterns Experience with multiple blockchain ecosystems (XLayer, Hyperliquid Chain, Ethereum, BSC, Solana, Polygon, Arbitrum) Strong understanding of MEV concepts and strategies: Flashloan arbitrage Sandwich attacks and protection Liquidation strategies Bundle creation and flashbots usage Experience in running and enriching full/archive nodes for trading Knowledge of cross‑chain technologies and bridge mechanisms Experience with on‑chain data analysis and blockchain indexing solutions Passion for DeFi innovation and staying current with protocol developments Experience with DeFi‑specific backtesting considering gas costs, slippage, and MEV competition Perks & Benefits Competitive total compensation package L&D programs and education subsidy for employees' growth and development Various team building programs and company events Wellness and meal allowance Comprehensive healthcare schemes for employees and dependants More that we love to tell you along the process #LI-DY #LI-ONSITE Information collected and processed as part of the recruitment process of any job application you choose to submit is subject to OKX's Candidate Privacy Notice. #J-18808-Ljbffr