Lionel Liu
Travailleur Indépendant
Gennevilliers, Île-de-France, France
Summary
🤩
Rockstar🎓
Top SchoolLionel Liu is a versatile software engineer with nine years of experience building full-stack and data-driven solutions, currently working as an independent consultant in the Paris region. He has hands-on expertise in backend systems, data pipelines and medical imaging AI, and has implemented production-ready features such as Kafka integration, HDFS caching and a streaming accuracy metric for the Apache Griffin project. Lionel also develops blockchain-enabled web and mobile apps, writing Solidity smart contracts and integrating meta-transactions with OpenZeppelin Defender. His background spans biomedical engineering, telecommunications and numerical engineering, enabling him to bridge domain-specific research (DICOM→NIFTI conversion and volumetric segmentation) with practical product delivery. Comfortable across Python, web frameworks and DevOps tooling, he’s equally at ease optimizing data flows for analytics or shipping secure smart contract tests with Hardhat/Foundry. Colleagues describe him as a pragmatic engineer who translates complex academic problems into maintainable, production-focused systems.
9 years of coding experience
1 year of employment as a software developer
Ingénierie numérique, Ingénierie numérique at ISEP - école d'ingénieurs du numériqueBioMedical Engineering, Bioimaging, BioMedical Engineering, Bioimaging at Université de ParisTelecommunications Engineering, Telecommunications Engineering at 华中科技大学Baccalauréat, Spécialité Mathématiques, Mention Très Bien, Baccalauréat, Spécialité Mathématiques, Mention Très Bien at Les Francs Bourgeois - La Salle
French, Chinese, English
Github Skills (8)
kafka10
hdfs10
spark10
data-processing10
scala10
dockers9
dsl9
docker9
Programming languages (3)
Github contributions (5)
apache/griffin
May 2017 - Aug 2019
Mirror of Apache griffin
Role in this project:
Backend Developer
Backend DeveloperContributions:495 commits, 103 PRs, 3 pushes in 2 years 3 months
Contributions summary:Lionel's primary contributions focused on enhancing the Apache Griffin project's backend functionality, particularly in relation to creating Docker configurations and developing data connectors. Their work included the implementation of a new streaming accuracy measure, integrating Kafka as a data source, and incorporating HDFS for data caching. Additionally, the user modified the DSL to support select and from clauses, indicating involvement in query and data processing logic within the project.
griffinjavaapache
bhlx3lyx7/griffin-docker
Jun 2017 - Nov 2018
Contributions:26 commits, 2 PRs, 18 pushes in 1 year 4 months
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