Pierre-hugues Jeanneret
Director Of Engineering at Onfido
Paris, Ile-de-France
Summary
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Rockstar🎓
Top SchoolPierre-hugues Jeanneret is a Director of Engineering based in Paris with 10 years of experience building and leading teams focused on distributed tracing, observability, and scalable backend systems. He progressed from hands-on engineering to leadership at Onfido after driving major tracing and SDK initiatives at Datadog and Criteo, where he led a team of eight and helped unify tracing products and deploy APM to Azure and FedRAMP clusters. A pragmatic engineer, he originated and open-sourced tracing solutions (including contributions to the Zipkin project and zipkin4net) and has repeatedly simplified complex codebases—once removing 500K lines to restore maintainability and developer engagement. He blends product-minded platform work with UI and backend contributions (notably adding log-access features to Zipkin’s trace UI), enabling observability workflows end-to-end. Known for pushing migrations and architectural improvements (Java/Scala upgrades, client/server redesigns), he balances technical depth with organizational impact.
10 years of coding experience
16 years of employment as a software developer
Computing, Computing at Tampere University of Technology 1965-2018Master's degree Cognitive Science and Advanced Algorithms, Master's degree Cognitive Science and Advanced Algorithms at EPITA: Ecole d'Ingénieurs en Informatique
English, French
Stackoverflow
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Github Skills (11)
distributed-tracing10
javas10
observability10
zipkin10
java10
ui-design9
front-end-development9
javascript9
uid9
testing8
cassandra8
Programming languages (8)
Github contributions (5)
openzipkin/zipkin
Nov 2016 - Jun 2017
Zipkin is a distributed tracing system
Role in this project:
Back-end & UI Developer
Back-end & UI DeveloperContributions:1 release, 8 commits, 9 PRs in 7 months
Contributions summary:Pierre-hugues contributed to the Zipkin UI and back-end components, implementing a feature to add a logs button on the trace page, enabling users to directly access logs based on trace IDs. They modified UI components using JavaScript and test files to support the new functionality and also made code changes in Java files related to UI properties and auto-configuration. Furthermore, the user addressed an issue with clock skew correction in Cassandra storage and the Span timestamping process. They also fixed a bug where searching by annotation could produce incorrect results.
opentelemetrydistributedtracingopenzipkinobservability
openzipkin/zipkin4net
Nov 2015 - Sep 2018
A .NET client library for Zipkin
Contributions:19 releases, 231 commits, 253 PRs in 2 years 10 months
dotnetclient-libraryopenzipkincsharpzipkin
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