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Nicolas LenselleNL

Nicolas Lenselle

Python Backend Web Developer | NLP | AI

On-demand
Paris, FR
3-7 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Nicolas

Looking for an experienced Python/Typescript developer? Want to strengthen your team for the development of a Python application?

I am a Python developer with 8 years of experience. I hold a Bachelor's degree in Computer Science. I have had the opportunity to work with:
- Large companies like Alma (fintech scale-up)
- International clients like Carooline (management solution for auto centers)
- Corail Helicoptère (airline company in Mauritius and Reunion Island).

As a developer, I am committed to producing quality work so that your users do not face an application full of bugs.

I can assist you with:
- Scoping business needs
- API development
- Dashboard development
- Python backend development,
- Backend migration
- Setting up Continuous Integration and Continuous Deployment (CI/CD)
- Training and upskilling development teams

Shall we discuss your project? Contact me directly on Malt!
  • English

    Fluent

  • French

    Native or bilingual

Remote only
Primarily works remotely

Experience

  • Youmean
    Python Developer
    CONSULTING AND AUDITS
    February 2023 - December 2023 (10 months)
    Paris, France
    Youmean is an innovative SaaS application using the latest advances in NLP and AI to process and analyze texts to understand what is said, thought, and felt.

    As an external consultant, I designed an end-to-end SaaS solution with the executives to meet the specific needs of semantic text analysis using AI.

    🏆 The software served as the primary tool for the analysis of public surveys (ministerial or local authorities) and brand discourse for major pharmaceutical groups. 🏆

    My main missions:

    👉 Transformer AI Models: Training and deployment of transformer models for text classification and clustering.

    👉 Data Processing Pipeline: Design and optimization of data processing pipeline performance to maximize speed and minimize costs.

    👉 Data Visualization: Interactive dashboards for intuitive data understanding and creation of analysis reports.

    ⚙️ Technologies and Tools:

    Languages and Frameworks: Python, Celery, SpaCy, FastAPI, React.js
    NLP and AI Models: Transformers, BERT, HuggingFace 🤗, GPT and other LLMs.
    Visualization Tools: Plotly
    Version Control and CI/CD: GitLab
    Databases: PostgreSQL
    Methodologies: TDD, Clean Architecture, Event Driven Architecture, DDD
    Deployment: Docker, Serverless GPU
    Python React FastAPI Celery Docker PostgreSQL SQL psql
  • Alma
    Python Developer
    BANKING AND INSURANCE
    April 2022 - February 2023 (10 months)
    Paris, France
    Alma is a scale-up in the financial sector, specializing in Buy Now Pay Later (BNPL) solutions. Its clients include major brands like SNCF, Promod, Devred, and Maison du Monde. It has several hundred employees.

    Within the "Merchant Performance" squad, I was tasked with improving the merchant back-office and developing the user journey for multi-payment options.

    🏆 During my assignment, the conversion rate on the customer journey increased. We were able to reduce the average customer journey time for multi-payment options. 🏆

    🏆 Alma expanded into several European countries (Germany, Spain, Italy) and the number of partner merchants also increased. The application received a rating of 4.8/5 on TrustPilot. 🏆

    My main missions:

    👉 Integration with Third-Party Services: Integrating credit card payment and identity verification solutions, thereby improving transaction fluidity and security.

    👉 Development of the Online Payment Journey: Designing and continuously improving the payment journey to increase conversion rates.

    👉 Deployment of the Application to Production: Supervising application deployments to production, implementing monitoring and alerting tools.

    👉 Legal Compliance: Ensuring the payment journey complies with current legislation.

    👉 Performance Visualization for Merchants: Creating intuitive dashboards to visualize performance, providing merchants with valuable insights to improve their operations.

    ⚙️ Technologies and Tools:

    Languages and Frameworks: Python, Flask, FastAPI, React.js
    Version Control and CI/CD: GitHub
    Databases: PostgreSQL
    Methodologies: Agile
    Deployment: Docker, GCP, Datadog
  • Corail Helicoptere
    Lead Dev
    AVIATION AND AEROSPACE
    October 2019 - February 2023 (3 years and 4 months)
    Saint-Denis, France
    Corail Helicopter is one of the leading tourist airline companies in Reunion Island and Mauritius. In 2022, it generated a revenue of €7 million.

    As a full-stack developer, I developed an ERP software to meet the company's needs. The software manages several thousand flights per year and has numerous modules to adapt to the regulations and very specific needs of this type of activity.

    The software is used daily by over 70 employees, from accounting to pilots and reservation agents. The software is at the heart of the company; it structures and streamlines the company's management to ensure its long-term viability.

    🏆 Corail is diversifying its business with the goal of industrializing the solution to resell it to other airline companies in the sector. 🏆

    ⚙️ Technologies and Tools:
    Languages and Frameworks: Python, FastAPI, Vue.js
    Version Control and CI/CD: GitHub
    Databases: PostgreSQL
    Methodologies: Agile
    Deployment: Docker
    odoo Vue.js Python psql PostgreSQL Docker

Recommendations

JL
CM
FU
Jean Laloux and 2 other people have recommended Nicolas

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Education

  • Bachelor's Degree in Computer Science
    University of Reunion
    2017
    Logique | Analyse de donnée | Programmation générale
  • 2nd Year Bachelor's Degree in Mathematics
    University of Reunion
    2016
    Statistiques | Algèbre | Analyse

Skill set

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