OKX will be prioritising applicants who have a current right to work in Singapore, and do not require OKX's sponsorship of a visa   Who Are We 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 team The BOSS ( Business Operation Support System ) Efficiency & Tools team is mainly responsible for providing infrastructure support to various vertical teams within OKX. This support includes message-sending ability (email/push notification/SMS), notification center and verification code, etc. Our goal is to help vertical tech teams reduce duplicated work and improve their efficiency in development.   What You'll Be Doing Responsible for coordinating the backend requirements, technical design, and development of the message delivery business. Responsible for system performance optimization, technical problem-solving, ensuring high availability, reliability, and performance requirements. Possess architectural design skills with the ability to identify service optimization points to enhance engineering productivity. Familiar with business and product requirements, capable of completing functional design, architectural optimization, and development tasks.   What We Look For In You Possess a solid foundation in Java, with in-depth understanding of JVM configuration optimization strategies, tuning, IO, multi-threading, concurrent frameworks, common data structures, algorithms, and design patterns. Additionally, demonstrate good programming practices and rich work experience. Familiar with common middleware such as MQ, RPC, caching, message queues, and MySQL. In-depth understanding of distributed system principles, including CAP theorem, consistency, idempotent operations, etc. Clear logical thinking, agile mindset, and excellent communication skills. Previous experience in team management or design of complex systems is a plus Preferred experience in integrating and developing platforms for email, SMS, push notifications, etc. Bilingual is highly preferred (Mandarin and English) as the team will be working with stakeholders in different regions   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 allowances Comprehensive healthcare schemes for employees and dependants  More that we love to tell you along the process!