Alexandre Chaintreuil
Senior Software Engineer at Datadog
United States
Summary
🤩
Rockstar🎓
Top SchoolAlexandre Chaintreuil is a Software Engineering Lead at Datadog with 11 years of experience building resilient backend systems and operational tooling. He advanced through multiple senior engineering roles on Datadog’s Event Platform and contributes to prominent open-source repos like datadog-agent and datadog-serverless-functions, improving agent robustness, log handling, and Lambda performance. Comfortable at the intersection of backend engineering and DevOps, he has a track record of fixing platform-level reliability issues (e.g., docker socket recovery and cross-platform log rotation) and optimizing memory and I/O in serverless handlers. Trained as an engineer at École Centrale Paris, he pairs deep systems intuition with hands-on performance tuning and pragmatic product delivery. Colleagues rely on him to bridge complex distributed systems work with operational realities, and his background includes applied machine learning and fast-paced startup delivery, reflecting a breadth beyond pure infrastructure.
11 years of coding experience
7 years of employment as a software developer
Master of Science (M.Sc.) in Engineering, Computer Science, Master of Science (M.Sc.) in Engineering, Computer Science at Ecole Centrale ParisBaccalaureat, Science, High Honours, Baccalaureat, Science, High Honours at Lycée J.F.ChampollionClasses Préparatoires (MPSI/MP*), Classes Préparatoires (MPSI/MP*) at Lycée Joffre
English, French, Chinese
Github Skills (26)
json10
docker10
python10
back-end-development10
aws-lambda10
azure-functions10
dockers10
go10
performance-optimization10
logging10
gzip9
observability9
monitoring9
tracer9
sys9
Programming languages (12)
Github contributions (5)
DataDog/datadog-serverless-functions
Oct 2018 - Aug 2019
Repo of AWS Lambda and Azure Functions functions that process streams and send data to Datadog
Role in this project:
Backend Developer & DevOps Engineer
Backend Developer & DevOps EngineerContributions:2 releases, 85 commits, 26 PRs in 9 months
Contributions summary:Alexandre focused on optimizing the performance and memory footprint of the AWS Lambda functions within the repository, specifically the S3 handler. They addressed a bug related to gzip timeouts and ensured proper log formatting and handling of events. Furthermore, the user implemented features to add azure-functions as well as add metadata and tags to different logs, including handling both string logs and logs from resource IDs.
azure-functionsserverlessaws-lambdastreamsaws
DataDog/datadog-agent
Aug 2018 - Nov 2020
Main repository for Datadog Agent
Role in this project:Back-end & DevOps Engineer
Back-end & DevOps EngineerContributions:52 commits, 79 PRs, 250 pushes in 2 years 3 months
Contributions summary:Alexandre primarily contributed to improving the Datadog Agent's backend functionality and reliability. They addressed issues like trimming API keys and handling container log rotation. Additionally, the user implemented code to improve the agent's robustness by recovering from docker socket crashes. Their work also encompassed fixing a bug in the log rotation on Windows.
golangdatadog-agentagentobservabilitypmm
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