Freelancer profile translated to English.
Back to original languageAbout Julien
I don't act as a simple developer or data scientist. I intervene to solve concrete business problems, combining data, development, and AI.
My approach is Outcome as a Service oriented:
👉 you have a goal (making your data reliable, automating a process, generating revenue)
👉 I activate the right levers (data engineering, full-stack, AI, automation)
👉 I deliver an operational system, not just code
I use a multi-technique approach depending on the need:
data engineering to structure and make data reliable
full-stack development to create tailored internal tools
automation to eliminate manual tasks
AI to accelerate and enrich processes
🎯 Examples of delivered results:
transformation of disorganized customer databases into reliable and usable repositories
complete automation of business workflows (from Excel files to industrialized systems)
development of internal tools connected to existing systems
integration of AI components into operational processes
I prioritize high-impact interventions:
quick audit & scoping
implementation of pragmatic solutions
delivery in short cycles with measurable results
💡 I generally intervene when:
your data is unreliable or difficult to use
your teams waste time on manual tasks
you need to quickly structure or industrialize a process
you want to integrate AI without complicating your organization
📍 Based in France — remote + occasional travel (France / international)
👉 Quick chat possible to qualify your needs.
French
Native or bilingual
English
Native or bilingual
Can work on-site
Belley (up to 50km)
Experience
- OaServiceFounderDIGITAL AND ITJanuary 2026 - Today (5 months)Belley, FranceExpert in SaaS solutions and automation to optimize business processes and boost operational efficiency.ExpertiseFull stack development: Python, FastAPI, JavaScript, CSS, PHP, Laravel.Automation: Integration with Google Sheets, Google Workspace, HubSpot.Optimization: Performance, UX, and data management improvements.Compliance: Dedicated solutions (e.g., electronic invoicing).SaaS Solutions: siret.oaservice.fr and rappels.oaservice.fr.Automation for CGMP:Dedicated platforms (supplier management, forecasting, KYC, synchronizations).Integration of ChatGPT and process optimization (SEPA transfers, orders, etc.).
- IFMBusiness AnalystRETAIL (SMALL BUSINESS)January 2023 - Today (3 years and 5 months)Le Bourget, France• High-performing prospect model: Expanded prospect base from 25k to 100k with a 27x ROI.• Salesforce pipeline automation: Data enrichment (revenue, headcount, sectors) to reduce manual research.• Quote-to-order tracking: Identified over €1M in untapped opportunities (tool is now central).• French company mapping: Assessed readiness for electronic invoicing, reusable for sales targeting.• Salesforce data cleaning: Scripts to validate emails, detect duplicates, and standardize missing fields.
- CARRIER HVACData Team Manager - Pricing DivisionRETAIL (LARGE RETAILERS)January 2020 - January 2023 (3 years)Montluel, France• Created a price change simulator.• Integrated lost quotes to refine our pricing models.• Reporting and analysis via Python and PowerBI to improve efficiency.• Adjusted pricing to maximize margin and align demand with our production flows.• Identified inefficient commercial conditions (ML clustering).• Managed and supervised a team of 2 analysts.
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Education
- Data ScientistOpenClassrooms / CentralSupélec2022- Prédiction de consommation électrique (XGBoost) - Classification d’image e-commerce (CNN, VGG16, sift) - Classification de descriptions e-commerce (NLTK, TF-IDF, BOW) - Big Data dans le cloud (Pyspark, AWS)
- AgribusinessUniversity of Manitoba2014Économie, gestion d’entreprise et agronomie.