Olivier Michallat
Drivers And Tools Engineer at DataStax
California, United States
Summary
🤩
Rockstar🎓
Top SchoolOlivier Michallat is a Drivers and Tools Engineer with 16 years building distributed systems and Java infrastructure, currently leading the Java driver team at DataStax. He specializes in Apache Cassandra, Netty, concurrent programming and API design, with hands-on contributions to the widely used cassandra-java-driver and the Stargate data gateway where he improved monitoring, refactoring, and keyspace management. A native French speaker fluent in English and Spanish, he combines deep protocol and performance optimization experience with a history of technical leadership across consulting and large-enterprise projects. Pragmatic and detail-oriented, he often focuses on code quality, observability, and memory-efficient implementations that pay off in production at scale.
15 years of coding experience
13 years of employment as a software developer
Software engineering degree, Software engineering degree at ENSIMAG8-month exchange program, 8-month exchange program at University of Waterloo
French, English, Spanish
Stackoverflow
2,312reputation
147kreached
55answers
0questions
java
top-5%
cassandra
top-1%
Github Skills (27)
back-end-development10
cassandra10
protocol-buffers10
wpgraphql10
java10
javas10
wordpress-graphql10
graphql10
cassandra-database10
grpc10
data-structure9
schema-design9
schema9
metric9
schema-org9
Programming languages (8)
Github contributions (5)
apache/cassandra-java-driver
Jun 2014 - Dec 2020
Java Driver for Apache Cassandra®
Role in this project:
Back-end Developer
Back-end DeveloperContributions:10 reviews, 2283 commits, 1100 PRs in 6 years 7 months
Contributions summary:Olivier primarily contributed to the core functionality of the Java Driver for Apache Cassandra, focusing on enhancements and bug fixes related to the protocol, schema handling, and data structures. They were involved in refactoring existing methods and classes. They also worked on improving performance by optimizing memory usage and adding new methods for handling data and retrieving results. The user demonstrated skills in Java and working with Cassandra-specific data types and protocols.
nosqlcassandraapachedatabasedatastax
stargate/stargate
Sep 2020 - Sep 2022
An open source data gateway
Role in this project:Back-end Developer
Back-end DeveloperContributions:827 reviews, 287 commits, 350 PRs in 2 years
Contributions summary:Olivier's contributions primarily focused on improving the codebase by enforcing Java and XML source formatting, adding health-checker functionality, and collecting metrics from persistence modules. These changes indicate a focus on code quality, monitoring, and performance improvements within the Stargate project. Furthermore, the user was also involved in refactoring GraphQL API code and implementing create and drop key space functionalities.
data-sourcecqlcassandragrpcdata-gateway
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