Olivier Guimbal
CTO at Lena
Paris, Ile-de-France
Summary
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Rockstar🎓
Top SchoolOlivier Guimbal is a hands-on CTO and serial founder with 11 years of engineering experience building scalable, security-conscious platforms across startups and enterprise contexts from Paris. He designs robust distributed architectures and leads product teams while still diving into production triage, reverse-engineering binaries and memory dumps when systems misbehave. Olivier has founded multiple ventures—including a cloud-secure virtual drive and a smart co-browsing service—and now leads Justice.cool, applying NLP and automation to make legal access affordable. His background spans full-stack stacks (TypeScript/Node, Python, C#, Cassandra, Elasticsearch) and production-facing improvements like Webpack/HMR integration for a popular open-source SQL parser. Comfortable bridging research-level computation (MSc from Imperial) with pragmatic shipping, he combines entrepreneurial drive with deep technical troubleshooting skills.
11 years of coding experience
4 years of employment as a software developer
MSc in Advanced Computational Methods for Aeronautics, Theoretical and Mathematical Physics, MSc in Advanced Computational Methods for Aeronautics, Theoretical and Mathematical Physics at Imperial College LondonMaster's degree, Entrepreneurship & activity development, Master's degree, Entrepreneurship & activity development at Ecole nationale supérieure d'Arts et Métiers / ENSAM
French, English, Spanish, Chinese
Stackoverflow
5,628reputation
793kreached
92answers
19questions
Github Skills (14)
parserator10
javascript10
parser10
postgresql10
sql10
unit-testing9
test-automation8
webpack8
webpacker8
cil6
assemblies6
windows-phone6
multithreading6
moq6
Programming languages (17)
Github contributions (5)
taozhi8833998/node-sql-parser
Jul 2020 - Jul 2020
Parse simple SQL statements into an abstract syntax tree (AST) with the visited tableList and convert it back to SQL
Role in this project:
Back-end Developer & Test Automation Engineer
Back-end Developer & Test Automation EngineerContributions:6 commits, 3 PRs, 1 push in 4 days
Contributions summary:Olivier focused on enhancing the parsing capabilities of the SQL parser, specifically regarding PostgreSQL syntax. They implemented support for creating tables, indexes, triggers, and extensions within the PostgreSQL dialect. Additionally, the user refactored the build process by integrating Webpack, enabling Hot Module Replacement (HMR) for unit tests, and creating one build bundle per language supported.
sql-parserflink-sqlmysqlsql-statementssql
oguimbal/pg-mem
Jul 2020 - Nov 2022
An in memory postgres DB instance for your unit tests
Contributions:1 release, 24 reviews, 443 commits in 2 years 4 months
node-postgresmemoryunitpg-promisepg-mem
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