Principal/Senior Java Engineer - Defi - Earn

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. Responsibilities: Responsible for the development of blockchain business server interfaces and other blockchain services required for related products. Optimize system performance and tackle technical challenges to ensure high availability, reliability, and performance. Possess architectural capabilities to identify optimization points and improve engineering efficiency. Understand business and product requirements, and complete functional design, architectural design optimization, and development. Requirements: Bachelor’s degree or higher in Computer Science, Software Engineering, or related fields. Solid foundation in JAVA, including JVM, IO, multithreading, concurrency, and networking. Deep understanding of object-oriented principles, design principles, encapsulation, and abstraction. Proficient in mainstream JAVA frameworks such as Spring/SpringMVC/SpringBoot. Preference given to candidates with experience in financial industry to C business development and architectural design. Preference given to candidates with experience in high-traffic, high-concurrency business development and architectural design. Familiarity with blockchain platform products such as Bitcoin, Ethereum, Hyperledger, etc., or knowledge of one or more mainstream decentralized finance (DeFi) projects like MakerDAO, Uniswap, Compound, or Synthetix is preferred. Candidates with a strong interest in blockchain technology, especially those with experience using and researching public chain ecosystem projects like Uniswap and AAVE, are preferred. Perks Benefits Competitive total compensation package LD programs and Education subsidy for employees' growth and development Various team building programs and company events Wellness and meal allowances Comprehensive healthcare schemes for employees and dependants More that we love to tell you along the process! Disclaimer: Please note that Hong Kong is a group-level service hub, and OKX does not carry on a business of operating a virtual asset trading platform in Hong Kong. Notice: All official OKX vacancies are published on this website. While roles may appear on selected third-party platforms from time to time, information on other sites may be inaccurate or outdated. If in doubt, please apply directly through our official careers website. 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 . ... (truncated, view full listing at source)