Florian Hussonnois
Lead Software Engineer at Kestra
Paris, Ile-de-France
Summary
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Rockstar🎓
Top SchoolFlorian Hussonnois is a Lead Software Engineer with 12 years of deep experience designing and operating event-driven and stream-processing architectures, currently leading backend work at Kestra. He’s an Apache Kafka expert who has shaped Kafka Streams internals via KIPs, contributed to core projects like Kafka and Storm, and built notable open-source tools such as Connect FilePulse and Jikkou. Florian has guided large-scale streaming platforms for enterprises like Decathlon and JCDecaux, including cryptography and CDC solutions, and has hands-on experience implementing storage and deduplication features in workflow automation (Kestra). A long-time community builder, he co-organized the Paris Kafka Meetup and was part of Confluent’s Community Catalyst program from 2019–2024. Colocated in Paris, he combines practitioner-level engineering with public-facing advocacy—blogging, speaking, and maintaining continuous open-source contributions that bridge research, production, and developer education.
12 years of coding experience
14 years of employment as a software developer
DUT Information Technology, DUT Information Technology at IUT Paris XIIIIngénieur EFREI Ingénierie logicielle, Ingénieur EFREI Ingénierie logicielle at EFREI - Grande école du numérique
French, English
Stackoverflow
1,657reputation
107kreached
50answers
5questions
apache-kafka
top-5%
Github Skills (24)
apache-storm10
back-end-development10
cassandra10
storage10
distributed-systems10
kafka-streams10
java10
scala10
javas10
workflow-automation10
data-processing10
api-design9
data-engineering9
data-structure9
workflow-engine9
Programming languages (9)
Github contributions (5)
kestra-io/kestra
Nov 2023 - Jul 2026
Event Driven Orchestration & Scheduling Platform for Mission Critical Applications
Role in this project:
Back-end Developer
Back-end DeveloperContributions:133 reviews, 453 PRs, 1076 pushes in 2 years 8 months
Contributions summary:Florian primarily contributed to the core logic and internal storage functionalities of the Kestra workflow automation platform. Their commits demonstrate work on accessing storage through RunContext, allowing the definition and exposing of outputs for flows and fixing issues related to task values and storage prefixes. They also implemented new tasks involving data deduplication and filtering for storage, as well as enhancements to the core logic for executing flows and processing state store.
event-drivenorchestrationdata-orchestrationhigh-availabilityinfrastructure-as-code
apache/kafka
Jul 2016 - May 2020
Apache Kafka - A distributed event streaming platform
Role in this project:Back-end Developer
Back-end DeveloperContributions:1 review, 11 commits, 16 PRs in 3 years 10 months
Contributions summary:Florian primarily contributed to the Apache Kafka codebase by adding functionality to Kafka Streams. Their work includes adding a constructor to an abstract stream class, exposing the states for active tasks, and upgrading the documentation. They also made the InternalTopologyBuilder accessible from AbstractStream subclasses and added a new NamedOperation interface.
apache-kafkascalakafkajavastreaming
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