Freelancer profile translated to English.
Back to original languageAbout Owenn
👋 Hello!
I am Owenn, a full-stack developer specializing in Python, Java, and JavaScript. Thanks to my BUT Informatique (Computer Science degree), I had the opportunity to do an apprenticeship and several internships at SNCF, where I notably worked with developers using quantum computing.
✨ My Promise: I always design my solutions to be personalized, robust, and as scalable as possible, whether it's developing web applications, connecting APIs, or automating your processes with precise requirements.
💻 Technical Expertise:
Front-end: React, React Native, Bootstrap
Back-end: Python, JavaScript, Java, Django
Databases: PostgreSQL, MySQL
Work Tools: Docker / Rancher, GitHub / GitLab CI
🤝 My Working Method:
I prioritize clear and regular communication to fully understand your needs, asking questions at the beginning and throughout the project development, whenever I have a doubt or need clarification.
My quote systematically includes a 7-day correction period following the initial delivery. This period will allow you to test and send me any modifications or corrections to be made, which I will strive to complete as quickly as possible.
French
Native or bilingual
English
Fluent
Remote only
Primarily works remotely
Experience
- marketpulse
On Malt
Adding features and improving the previously developed Python script.CONSULTING AND AUDITSDecember 2025 - December 2025Took over the Python script to add and modify the following functionalities:1. Filter businesses using a provided CSV of categories.2. Adjust ChatGPT prompt calls.3. Post-filter based on extended categories.4. Add columns: Contactable; PostRS; Email to use; Name_clean; Survey URL; Short URL; AI Hook; Exclusion.5. Populate the Contactable column using "No"; "YES - SMS only"; "YES - Mail only"; "YES - Mail & SMS".6. Fix ChatGPT prompt issues using a provided CSV of franchise names. Verify using email, website URL, AND company name.7. Concatenate posts and create an AI hook from this concatenation, a "fixed" prompt, and a variable prompt.8. Add cleaning of the company name.9. Reorganize the column order.10. Make the script more intuitive to use (e.g., Correct the automatic conversion logic).11. Additional details (e.g., AI model modification; User variable addition)Presented the additions at the end of the development for Mr. ELLONG to easily understand and use it. - marketpulseResearch and modification of two APIs in the Python script to reduce costsSeptember 2025 - September 2025I took over the code from the previous mission with Mr. ELLONG following his request to reduce API call costs.I conducted in-depth research on the most suitable APIs to make the script faster and less expensive.After this research, I easily modified the API calls.I took the opportunity to add several features not requested by Mr. ELLONG (at no extra cost), solely to make the script easier to use.Just like during the first mission, I explained all the modifications and additions to him.
- marketpulseDevelopment of a Python script processing CSV files from Google Maps scrapingJuly 2025 - August 2025 (1 month)Based on the specifications provided by Mr. ELLONG, I developed a script capable of processing, sorting, reformatting, and enriching data using API connections.The API connections used are: ChatGPT, APIFY, CaptainVerify.Furthermore, I took the initiative to process lines in parallel, which drastically reduced the script's execution time.I also added several features and improved upon the initial specifications.At the end of the mission, I explained the exact functioning of the script to him via a video call.
Reviews
Anthony
Fondateur - marketpulse
Reviewed on 12/1/2025
Great collaboration with Owenn, responsive and available, thank you!
Anthony
marketpulse
Reviewed on 9/29/2025
Thanks again to Owenn for his help on the project.
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Education
- Bachelor of TechnologyInstitut Universitaire de Technologie de Saint-Dié-des-Vosges de l'Université de Lorraine2024Bachelor of Technology
- High School DiplomaLycée Général Charles-de-Gaulle Longperrier2022High School Diploma