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Alexis ClarennAC

Alexis Clarenn

Python Developer — Automation & Internal Tools

€300/day
Paris, FR
3-7 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Alexis

Python developer specializing in creating internal tools and automating tasks.
I help companies and freelancers simplify time-consuming processes: Python scripts, advanced Excel, document generation, and simple APIs.

My approach is deliberately pragmatic:
→ quick understanding of needs
→ clear, reliable, and maintainable solution
→ no over-engineering, concrete results

Specifically, I can help you to:
→ automate a repetitive or manual task
→ improve or replace an Excel file with a more reliable tool
→ automatically generate documents (PDFs, exports, reports)
→ create, fix, or evolve a simple API (FastAPI)
→ clean, secure, or improve an existing backend
→ set up the technical foundation for an MVP or an internal tool

I mainly work on short or targeted missions, to quickly unblock a specific point or measurably save time.
  • French

    Native or bilingual

  • English

    Conversational

Remote only
Primarily works remotely

Experience

  • Cluser
    Backend Python / FastAPI Developer
    November 2024 - Today (1 year and 7 months)
    I work as a backend developer on the design and technical architecture of a web platform.
    My responsibilities cover the entire backend, from API creation to database management and security.

    Key achievements:

    • Implementation of a complete backend in FastAPI
    • Secure authentication (JWT + refresh, Argon2)
    • Design and development of REST APIs used by the frontend
    • Creation of internal micro-services and automations (scripts, email ingestion…)
    • PostgreSQL database architecture and management
    • Implementation of backend best practices: Pydantic validation, error handling, clean models
    • External API integrations and inter-service communication
    • Participation in technical design and product evolution
    • Maintenance, improvements, and continuous optimization of the backend

    This experience has allowed me to develop a solid mastery of Python backend development, API creation, and issues related to security and application structure.
    PostgreSQL FastAPI Python REST API Development Authentication & Security
  • CODING CONNECTION
    Tutor
    April 2023 - September 2023 (5 months)
    Paris, France
    Teaching computer science to primary school children. Primarily using Scratch and some basic Python concepts.
  • EVS. Livry Gargan
    Temporary Worker
    October 2022 - April 2023 (6 months)
    Versatile manual laborer. Including team management in technical departments and stock management.

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Education

  • BTS Cyberdefense Year
    Lycée militaire de Saint-Cyr l'École
    2024
    année BTS cyberdéfense
  • École 42
    2023

Skill set

Categories