Freelancer profile translated to English.

Description

I help companies design, industrialize, and improve their Data & AI solutions (Data Science, NLP, Data Engineering). I work on data pipeline projects, generative AI (chatbots, RAG, text classification), and analytics (KPIs, dashboards). I bring strong expertise in complex and regulated environments (banking, audit), with the ability to transform POCs into robust and industrialized solutions (Dataiku, PySpark, SQL, Airflow). Accustomed to multi-stakeholder Agile contexts, I also ensure technical leadership and reporting for Data/IA projects.

Industry field of expertise

Languages

Korean
Native or bilingual
French
Fluent
English
Fluent
Japanese
Conversational

Workplace preferences

Can work on-site

Sceaux (up to 20km)

Deloite
Manager, Data Science & Data Engineering – Tech, Data & Risk Team
CONSULTING AND AUDITS
January 2019 - Today (7 years and 6 months)
Paris, France
Dataiku Engineer– Risk & Finance Convergence – La Banque Postale (2023 - 2024)
• Development and maintenance of scalable data pipelines within a pre-defined Medallion architecture (bronze/silver/gold), using PySpark and SQL on Dataiku.
• Orchestration of workflows via Dataiku scenarios, implementing non-regression tests and participating in continuous integration practices within an Agile framework.
• Implementation and documentation of Dataiku best practices for modular and maintainable pipeline design, reducing intermediate tables and execution time by 50%, while facilitating specification changes.

Data Scientist– Payments Department – La Banque Postale (2021 - 2022)
• Performance of quality checks on payment data and facilitation of design and anomaly analysis workshops with business and IT teams.
• Management of analytics and data quality projects on various payment methods, delivering automated KPI dashboards via Qlik Sense.

Generative AI / NLP Projects
• Regulatory watch: development of a generative AI system (OpenAI, Gemini) for searching regulatory articles. Prompt engineering applied to summarizing and thematically classifying content (e.g., AML-CFT, compliance).
• HR Chatbot: development of a conversational assistant based on internal documents, using PDF splitting (chunking) and semantic similarity calculation.
• Article analyzer: development of an article analysis system for automatic summarization and named entity recognition.
SQL NLP Dataiku Data science Python
IBM
Watson AI Consultant, Intern
CONSULTING AND AUDITS
July 2018 - December 2018 (5 months)
Paris, France
• SNCF Claims Management Chatbot: design of user interfaces and front-end development within an Agile team of 8 consultants.
• ML Benchmark: design of an automated workflow with Python and Apache Airflow for evaluating and comparing text intention classification models.
Python NLP Data science Artificial intelligence Machine learning
EY
Financial Auditor, Intern
CONSULTING AND AUDITS
September 2016 - February 2017 (5 months)
Paris, France
Participation in audit missions for large industrial groups, including performing audit work, collecting and analyzing data, documenting working papers, and regular reporting to the manager on mission progress and key findings.
Financial Audit VBA Analytics Microsoft Word Microsoft Excel