Xiaolong Ji
Leed Software Engineer at Grab
Haidian District, Beijing, China
Summary
🤩
Rockstar🎓
Top SchoolXiaolong Ji is a lead software engineer with 9 years’ experience building distributed systems and low-latency services across Grab, Tencent, Baidu, and H3C. He blends strong C++ and Go expertise—delivering an ADAS SDK for automotive partners, RTK positioning improvements to centimeter-level, and backend services that boosted Grab’s dispatch success and reduced driver wait times. An active open-source committer to Apache Pulsar, he made substantial enhancements to the Go client including consumer/producer features, async handling, and testing improvements. Comfortable spanning systems, networking, and geospatial solutions, he also leverages CGO and native libs for high-performance region and positioning services. Known for pragmatic refactors and shipping production-grade features, he brings both research-led rigor (published RTK work) and hands-on delivery to large-scale platforms.
9 years of coding experience
8 years of employment as a software developer
Bachelor's degree, Electrical, Electronics and Communications Engineering, Bachelor's degree, Electrical, Electronics and Communications Engineering at Beijing Jiaotong University硕士, 电子与通信工程, top15%, 硕士, 电子与通信工程, top15% at 北京交通大学
Stackoverflow
21reputation
11kreached
1answer
0questions
Github Skills (12)
golang10
unit-testing10
go10
messaging-system10
pubsub10
apache-pulsar10
messaging10
message-queue10
concurrency10
test-automation10
testing9
protocol-buffers6
Programming languages (11)
Github contributions (5)
apache/pulsar-client-go
May 2019 - Sep 2022
Apache Pulsar Go Client Library
Role in this project:
Back-end Developer
Back-end DeveloperContributions:10 releases, 216 reviews, 141 commits in 3 years 5 months
Contributions summary:Xiaolong primarily contributed to the development of the Go client library for Apache Pulsar. Their work included adding Go module support and refactoring the project's directory structure, which involved modifying a significant number of files related to the client's internal workings. Furthermore, the user implemented consumer logic, addressing related issues and expanding functionalities to support features like message seeking, unacknowledged message tracking, and asynchronous message handling. They also added tests to validate the consumer and producer functionalities.
golangevent-streamingpulsarclient-librarygo-client
apache/pulsar
Jan 2019 - Apr 2022
Apache Pulsar - distributed pub-sub messaging system
Role in this project:Back-end Developer
Back-end DeveloperContributions:4 releases, 104 reviews, 222 commits in 3 years 3 months
Contributions summary:Xiaolong primarily contributed to the Go client of the Apache Pulsar messaging system. Their work focused on enhancing the client's functionality by adding features such as a producer's `LastSequenceID` and a mechanism for setting `SequenceID` on producer messages. They also refactored and improved the client's integration tests by adopting tools like `logrus` and `testify`. Furthermore, they added producer flush functionalities to improve message persistence handling, and incorporated consumer seeking functionalities.
event-streamingpulsarmessaging-systemstreamingapache
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