Corentin Chary
Distributed Software Engineer at Datadog
Rennes, Brittany, France
Summary
🤩
Rockstar🎓
Top SchoolCorentin Chary is a distributed software engineer with 26 years of experience designing and operating large-scale systems, from kernel drivers and embedded devices to clusters of thousands of machines. Based in Rennes, France, he has driven reliability and observability at companies like Datadog, Criteo and Google—building BigGraphite, scaling Bigtable, and improving Datadog’s agent logging and health checks. He combines low-level expertise (Linux kernel, MTD/UBI, embedded platforms) with production-grade backend and SRE practices, reducing operational load through cleaner code, SLIs/SLOs and automation. A pragmatic open-source contributor, his work spans Prometheus Alertmanager improvements, Datadog Agent fixes, and device driver patches for netbooks, reflecting an uncommon fluency across hardware, systems and cloud.
26 years of coding experience
13 years of employment as a software developer
EpitechLicence, Computer Science and Mathematics, Licence, Computer Science and Mathematics at Université Claude Bernard Lyon 1
French, English, Spanish
Stackoverflow
81reputation
4kreached
3answers
0questions
Github Skills (31)
observability10
testing10
c-programming10
linux-kernel10
kernel10
go10
sys10
alarmmanager10
embedded10
logging10
acpi10
notificationmanager10
concurrent9
abstraction-layer9
abstraction9
Programming languages (12)
Github contributions (5)
DataDog/datadog-agent
Sep 2018 - Nov 2021
Main repository for Datadog Agent
Role in this project:
Back-end Developer
Back-end DeveloperContributions:67 reviews, 14 commits, 43 PRs in 3 years 2 months
Contributions summary:Corentin primarily focused on improving the logging agent within the Datadog Agent repository, as seen by the multiple commits addressing the logging pipeline. They implemented changes to handle message truncation and dropping, particularly on different operating systems, and they also addressed the agent's ability to be stopped gracefully. The user also added metrics and health checks, as well as reducing dependencies. Their work also included making adjustments to unit tests and optimizing some aspects of the underlying code.
golangdatadog-agentagentobservabilitypmm
prometheus/alertmanager
Sep 2017 - Jul 2018
Prometheus Alertmanager
Role in this project:Backend & DevOps Engineer
Backend & DevOps EngineerContributions:8 commits, 11 PRs, 98 comments in 10 months
Contributions summary:Corentin primarily contributed to the Alertmanager backend, adding features and addressing bugs related to silence management and OpsGenie integration. Their work included modifying the Go codebase to incorporate mutexes for concurrency control, implementing new functionality for the `amtool` utility, and improving error handling within the OpsGenie notifier. Additionally, the user added tests to ensure the reliability of the code and the correct functioning of these features. This suggests a focus on improving the stability and operability of the alert management system.
opsgenieprometheus-exporterpagerdutyemaildeduplication
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