Rémi Dettai
Software Engineer at cloudfuse.io
Tours, Centre-Val de Loire, France
Summary
🤩
Rockstar🎓
Top SchoolRémi Dettai is a software engineer and founder with 11 years of experience building cloud-native data platforms, from event ingestion at billion-event scale to query engines and visualization. He blends hands-on backend and cloud engineering with product-minded architecture—leading cloud runtimes at Tenzir, founding cloudfuse.io, and contributing to Quickwit’s observability search stack. A consistent open-source contributor, Rémi has improved core data tooling in high-profile projects like Apache Arrow and DataFusion (notably Parquet and multi-file format handling) and fixed tricky time-series and locale bugs in KairosDB. Trained as a mathematical engineer at INSA Toulouse, he combines strong analytical foundations with practical expertise in AWS, Rust, and distributed data pipelines. He’s driven by ambitious projects and keeps exploring new technologies to stay ahead in a fast-moving ecosystem.
11 years of coding experience
8 years of employment as a software developer
Diplôme d'ingénieur Modélisation mathématique, Diplôme d'ingénieur Modélisation mathématique at INSA Toulouse - Institut National des Sciences Appliquées de Toulouse
English, hongrois, French, German, Spanish
Stackoverflow
573reputation
34kreached
7answers
10questions
Github Skills (52)
timeseries-database10
algorithms10
debug10
testing10
big-data10
filetype10
file-conversion10
file-operations10
arrow-keys10
data-structure10
java10
file-format10
fusion10
apache-arrow10
javas10
Programming languages (11)
Github contributions (5)
quickwit-oss/quickwit
Sep 2023 - Mar 2025
Cloud-native search engine for observability. An open-source alternative to Datadog, Elasticsearch, Loki, and Tempo.
Role in this project:
Backend Developer & DevOps Engineer
Backend Developer & DevOps EngineerContributions:244 reviews, 223 PRs, 680 pushes in 1 year 6 months
Contributions summary:Rémi made several contributions related to setting up logging, tracing, and OpenTelemetry integration within the Quickwit CLI. They also made changes to the file source and its interaction with storage, specifically implementing slice streams and handling file-based data ingestion. Additionally, the user worked on creating and enhancing the lambda infrastructure, including querying and indexing functionalities. Their work included creating infrastructure for lambdas, configuring the API gateway and search endpoints, and improving log handling and performance.
analyticsrustlog-analyticslog-managementlogging
apache/datafusion
Aug 2021 - Nov 2021
Apache DataFusion SQL Query Engine
Role in this project:Back-end Developer
Back-end DeveloperContributions:73 reviews, 12 commits, 8 PRs in 2 months
Contributions summary:Rémi primarily contributed to the Apache DataFusion SQL Query Engine, focusing on improving the core functionality and codebase. Their work involved enhancing the custom source implementation API, addressing issues with hash aggregation, and refactoring table provider handling. They also made contributions to file format handling, including support for multiple files per partition for CSV, Avro, and JSON formats. These improvements enhanced the query engine's capabilities and performance.
querypythonquery-enginedataframerust
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