Middleware Senior Architect

Overview
OKX will be prioritising applicants who have a current right to work in Hong Kong, and DO NOT require OKXs sponsorship of a visa. Who We Are At OKX, we believe that the future will be reshaped by crypto, and ultimately contribute to every individuals 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
Join the middleware team and step into an elite team composed of numerous technical experts. Most of our members come from top internet companies such as Alibaba, ByteDance, Tencent, and Baidu, gathering the industrys leading technical talents. Here, we are not only committed to pushing the ultimate optimization of existing technologies but also continuously exploring frontier technologies and innovations, striving to lead industry changes. Our projects cover multiple fields such as microservice governance, RPC frameworks, MQ messaging middlewares, and data middlewares, providing solid technical support for the companys business. We advocate an open, sharing, and cooperative cultural atmosphere, and we look forward to creating a more brilliant future with you.

Responsibilities
Responsible for the overall architecture design and optimization of microservice governance frameworks (e.g., SpringCloud), RPC frameworks, MQ messaging middlewares (e.g., Kafka), and data middlewares (including RDB databases such as MySQL, NOSQL such as Redis, Elastic Search, etc.).

Conduct in-depth research and select appropriate technical solutions, driving the selection and implementation of middleware technologies to ensure high availability, scalability, and security of the system.

Proficient in microservices frameworks such as Spring Boot and Spring Cloud, responsible for customized development and performance tuning of the frameworks.

Deep understanding of RPC communication mechanisms and the working principles of message queues, optimizing message transmission efficiency and resolving data consistency issues in distributed systems.

Combine business requirements to design efficient data storage solutions, optimizing data access performance and cost.

Responsible for the integrated deployment, monitoring and alerting, troubleshooting, and emergency response of middleware systems, improving operational efficiency and system stability.

Keep abreast of industry trends, introduce new technologies and concepts, and promote team technical capabilities.

Requirements
Bachelors degree or above in Computer Science or a related field, with a solid foundation in computer science.

Over 10 years of software development experience, with at least 6 years of experience in middleware or distributed system architecture design, and successful cases of large-scale project or complex system architecture design.

Proficient in microservice architecture design and implementation, familiar with RPC frameworks such as Spring Cloud and Dubbo, as well as messaging middlewares like Kafka and RabbitMQ.

Deep understanding of the design and optimization of NoSQL databases such as Redis and MongoDB, as well as relational databases like MySQL.

Familiar with the use and optimization of search engines such as Elastic Search.

Practical experience with configuration centres such as Nacos and Apollo, as well as containerization technologies like Kong API Gateway and Kubernetes (K8S).

Understanding of distributed coordination services such as etcd and Zookeeper, and have some understanding and practical experience in cutting‑edge technologies such as ServiceMesh, Sidecar, and eBPF.

Possess top‑level design capabilities for complex systems, able to independently complete the entire process from requirement analysis to technical solution design.

Excellent logical thinking and problem‑solving skills, able to quickly locate and resolve system bottlenecks and difficult issues.

Good communication and coordination skills, a strong sense of teamwork, able to effectively manage project timelines and lead the team to achieve goals. Mandarin speaker is a plus.

Maintain curiosity about new technologies and be willing to continuously learn and apply them in practical work.

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.

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