Tanguy Falconnet
DevOps Engineer at Pewty
Saint-Étienne-sur-Chalaronne, Auvergne-Rhône-Alpes, France
Summary
👤
Senior🎓
Top SchoolTanguy Falconnet is a seasoned DevOps/SysOps engineer with 11 years of experience blending software development, IT security, and operational excellence. Trained at INSA Lyon and CPE Lyon, he applies a security-first mindset to cloud-native operations and automation, moving from offensive thinking to robust production practices. An active open-source contributor, he has improved observability in flagship projects like kube-state-metrics and prometheus/node_exporter by adding HPA-aware metrics and hardening network collectors for concurrency. Based in Auvergne-Rhône-Alpes, he seeks challenging projects where he can iterate quickly and deliver measurable reliability gains. Colleagues describe him as a pragmatic hacker-turned-operator who enjoys surfacing subtle metric and concurrency issues before they become incidents.
11 years of coding experience
Diplôme d'ingénieur en alternance Informatique et réseau de communication, Diplôme d'ingénieur en alternance Informatique et réseau de communication at CPE LyonDUT Informatique, DUT Informatique at Université Claude Bernard Lyon 1Mastère spécialisé Sécurité Informatique Sécurité / sûreté de l'information des systèmes informatiques, Mastère spécialisé Sécurité Informatique Sécurité / sûreté de l'information des systèmes informatiques at INSA Lyon - Institut National des Sciences Appliquées de LyonBac général Série S-SVT; Mathématiques, Bac général Série S-SVT; Mathématiques at Lycée Ismael Dauphin, Cavaillon (84)
English, Spanish, French
Github Skills (10)
monitoring10
kubernetes10
go10
prometheus10
kubernetes-pods10
metric10
mutex9
mux9
procfs8
hosts7
Programming languages (7)
Github contributions (5)
kubernetes/kube-state-metrics
Apr 2022 - May 2022
Add-on agent to generate and expose cluster-level metrics.
Role in this project:
Back-end Developer
Back-end DeveloperContributions:6 commits, 1 PR, 2 comments in 5 days
Contributions summary:Tanguy's contributions primarily involved implementing and modifying metrics related to Horizontal Pod Autoscalers (HPA) within the kube-state-metrics project. They added new metrics, updated existing ones, and fixed issues related to how the metrics are calculated and displayed. This included modifying Go code to incorporate the current status of target metrics and correct label/value representations. The user's work directly improved the monitoring capabilities of Kubernetes deployments.
prometheus-exporteragentkubernetes-exporterobservabilityexpose
prometheus/node_exporter
Feb 2022 - Feb 2022
Exporter for machine metrics
Role in this project:Back-end Developer
Back-end DeveloperContributions:5 commits, 1 PR in 1 day
Contributions summary:Tanguy's contributions primarily involve modifying the `ethtool_linux.go` file within the `prometheus/node_exporter` repository. Their commits focus on enhancing the ethtool collector, specifically addressing concurrency issues by introducing mutexes to protect access to data structures. They also fixed and refactored existing entry functions for clarity and consistency. These changes suggest a focus on improving the accuracy and reliability of network interface metrics exposed by the exporter.
exporterprometheus-exportersystem-metricshost-metricssystem-information
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