Xie Enlong
Systems Engineer at mobike
Beijing, China
Summary
🤩
RockstarXie Enlong is a seasoned systems engineer based in Beijing with 11 years of experience building and hardening backend systems. He contributes actively to prominent Java open-source projects—improving SOFARPC with bug fixes, caching optimizations, and Hystrix-based fault-tolerance, and enhancing the Pippo microframework’s routing internals—demonstrating deep familiarity with production Java RPC and web frameworks. His work on SmartQQ shows practical experience implementing real-time messaging flows, authentication, and API endpoints for bots and group interactions. Comfortable working in core framework layers, he focuses on reliability, extensibility, and pragmatic design rather than surface-level features. An ACG enthusiast, he brings both focused technical discipline and a creative mindset to engineering challenges.
11 years of coding experience
Github Skills (16)
json10
javas10
http-client10
microservices-application10
web-framework10
url-routing10
rpc10
api10
microservices10
hystrix10
apidoc10
api-design10
java10
fastjson10
testing9
Programming languages (14)
Github contributions (5)
ScienJus/smartqq
Dec 2015 - Oct 2017
SmartQQ（WebQQ）的Api ，你可以用它实现自己的QQ 机器人 a qq robot based on smartqq (webqq) api
Role in this project:
Back-end Developer
Back-end DeveloperContributions:78 commits, 30 PRs, 70 pushes in 1 year 10 months
Contributions summary:Xie primarily contributed to the development of the SmartQQ API. Their work involved implementing core functionalities such as user login, retrieving group and friend lists, polling for messages, and sending messages to both groups and individual friends. They also integrated features for obtaining user information and discussions. Their commits reveal a focus on building the back-end logic and API endpoints for the SmartQQ functionality.
apiwebqqqqbotrobotsmartqq
sofastack/sofa-rpc
Dec 2018 - Jun 2019
SOFARPC is a high-performance, high-extensibility, production-level Java RPC framework.
Role in this project:Back-end Developer
Back-end DeveloperContributions:7 commits, 7 PRs, 45 comments in 6 months
Contributions summary:Xie primarily contributed to the `sofa-rpc` framework by addressing bugs and enhancing its functionality. They fixed issues in the local registry implementation, such as incorrect file modification checks, and improved caching mechanisms. Furthermore, the user integrated the Hystrix fault tolerance library, implementing fallback mechanisms and circuit breaker functionality. These contributions involved modifications to core framework components, as well as related test cases.
sofa-rpcrpcprotobufproductionrpc-framework
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