Lei Jin
Software Engineer Lead at Visionular
Haidian District, Beijing, China
Summary
🤩
Rockstar🎓
Top SchoolLei Jin is a seasoned software engineering lead with 16 years of experience designing high-throughput, distributed streaming and backend systems across cloud and edge environments. Based in Beijing, he has led architecture and delivery at Visionular and Kingsoft Cloud, driving systems that handled tens of thousands qps and millions of messages per second using Go, nginx+lua, gRPC, Kafka, Spark and NoSQL stacks. A polyglot hacker comfortable from kernel-level netfilter tweaks to cloud automation with Ansible and AWS, he pairs pragmatic engineering — “talk is cheap, show me the code” — with deep operational know-how. He contributes to open-source WebRTC examples (improving SFU endpoints and Prometheus metrics), evidencing a focus on observable, production-ready services. Known for tooling fluency (Go, Ruby, PHP, C, Lua, Vim) and a taste for low-level performance work, he blends hands-on coding with system design and team leadership.
16 years of coding experience
17 years of employment as a software developer
Master's degree, Master's degree at Tianjin University
Github Skills (7)
golang10
http10
go10
webrtc10
prometheus9
docker4
dockers4
Programming languages (23)
Github contributions (5)
pion/example-webrtc-applications
Feb 2019 - Jun 2019
Examples of WebRTC applications that are large, or use 3rd party libraries
Role in this project:
Back-end Developer
Back-end DeveloperContributions:6 commits, 4 PRs, 3 pushes in 3 months
Contributions summary:Lei contributed to the example WebRTC applications by adding an HTTP endpoint to the SFU example to receive SDPs. They also implemented error checking when using a TCP port and updated the `sfu-ws` example to utilize prommod and integrate Prometheus metrics. These changes include modifying the Go modules, adding plan-b compatibility for unified plan, and refactoring the code for prometheus keys.
webrtc3rd-party-librariesparty3rd-partygo
jinleileiking/awesome-webrtc
Mar 2019 - Jul 2019
Contributions:9 commits, 8 pushes, 1 branch in 4 months
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