About OKXFounded in 2017, OKX is one of the world's leading cryptocurrency spot and derivatives exchanges. OKX has adopted innovative blockchain technology to reshape the financial ecosystem by offering some of the most diverse and sophisticated products, solutions, and trading tools on the market. Trusted by more than 20 million users in over 180 regions globally, OKX strives to provide an engaging platform that empowers every individual to explore the world of crypto. In addition to its world-class DeFi exchange, OKX serves its users with OKX Insights, a research arm that is at the cutting edge of the latest trends in the cryptocurrency industry. With its extensive range of crypto products and services, and unwavering commitment to innovation, OKX's vision is a world of financial access backed by blockchain and the power of decentralized finance.About the TeamThe Vault backend team is the core basic component of OKX Web3 business. It is responsible for on-chain asset data management, on-chain Gas estimation, transaction broadcast and other important modules. It needs to closely follow the business interactions of different blockchains, respond quickly, support quickly, and cope with high-concurrency requests, big data processes, stability and other challenges.ResponsibilitiesResponsible for system stability construction, optimizing and improving the availability and carrying capacity of online services, and solving online emergenciesUnderstand the business and complete the system architecture design to ensure that performance, scalability and security requirements are metContinue to pay attention to new technology trends, introduce and integrate new technology solutions to improve system performance and development efficiencyRole RequirementsHave a solid Java foundation, and have an in-depth understanding of JVM configuration optimization strategies and tuning, IO, multi-threading, concurrency framework, common data structures, algorithms and design patterns. In addition, have good programming standards and rich work experienceFamiliar with mainstream open source application frameworks, such as SpringBoot, SpringMVC, Mybatis, SpringCloud, etc.Proficient in the usage scenarios and principles of commonly used middleware (such as MQ, cache, ES, etc.), and be able to use its functions to solve architecture and high concurrency issuesProficient in mainstream database architecture and usage, with certain experience in big data processing and architecture, and proficient in using middleware services such as Mysql, Lindorm, HBase, PolarDB, etc.Clear logic, quick thinking, good communication skillsHave a strong sense of responsibility, ownership awareness and exploration spiritUnderstand Web3, public chain business and technology, those with relevant work experience are preferredWhat's in it for you:Web3 core technical teamHigh stability, big data processing requirementsExposure to the business and technical structures of various chainsOverseas development opportunities（HK&SG）
