Charlie Le
Senior Software Development Engineer at Apple
Cupertino, California, United States
Summary
🤩
Rockstar🎓
Top SchoolCharlie Le is a Senior Software Development Engineer at Apple with 11 years of experience building and scaling cloud-native systems, infrastructure automation, and reliability engineering. Over a decade at Apple he progressed from site reliability and DevOps roles into senior software development, focusing on automating operations, performance optimization, and platform deployments. He contributes to notable open-source projects like Cortex, helping improve multi-tenant Prometheus query federation and ingestion behavior—demonstrating hands-on backend and observability expertise. Comfortable across the stack, he has a strong history migrating servers and databases, shipping mobile app backends for large user bases, and writing tooling to manage thousands of servers. Based in Cupertino and trained at UC Davis and freeCodeCamp, Charlie blends production-grade systems thinking with a pragmatic, test-focused engineering approach.
11 years of coding experience
11 years of employment as a software developer
Computer Science, Computer Science at University of California, DavisFull Stack Web Development Certification Computer Software Engineering, Full Stack Web Development Certification Computer Software Engineering at freeCodeCamp
Stackoverflow
41reputation
0reached
1answer
0questions
Github Skills (11)
monitoring10
kubernetes10
go10
prometheus10
back-end-development10
kubernetes-pods10
testing10
cnc9
visual-studio-code6
python6
virtualenv6
Programming languages (17)
Github contributions (5)
cortexproject/cortex
Mar 2023 - Mar 2025
A horizontally scalable, highly available, multi-tenant, long term Prometheus.
Role in this project:
Back-end Developer
Back-end DeveloperContributions:4 releases, 93 reviews, 77 PRs in 2 years
Contributions summary:Charlie's contributions primarily focused on fixing bugs, implementing new features and refactoring code related to the Cortex project. They addressed typos in code and documentation. They also worked on improving the query federation by selecting correct tenant during query and parameterizing uploading compacted blocks in Ingester. Furthermore, the user made improvements to the tests and added alertmanager configuration flags.
golangscalabletenantprometheus-exporterlong-term
CharlieTLe/Diary
Aug 2014 - Oct 2018
Python script that makes timekeeping and note entry conveniently simple.
Contributions:1 release, 20 commits, 8 PRs in 4 years 3 months
timekeepingpythonpython-script
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