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Alexandre F.AF

Alexandre F.

Python | Backend | Integration Tests | SRE

€520/day
2 projects
Paris, FR
8-15 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Alexandre

Developer work is not limited to writing and pushing code to production. But also to enabling others (and future) developers to maintain said code. And to evolve it. In case a "bus were to hit us one day..."

This is why, throughout my many years of experience, I have focused on developing expertise in writing reliable and modular code. Through the promotion of good practices. And the development of comprehensive test suites, whether unit or integration. This is to ensure the longevity of the projects I have worked on.

It is this know-how that I offer to put at your service. Combined with several years of experience in systems and network administration. Which has allowed me to acquire a dual role of developer and administrator. And thus to manage the entire lifecycle of an application from end to end.

Whether your project involves developing a new application. Redesigning an existing system. Or managing your IT infrastructure in the Cloud. Let's discuss your project together. And how to bring it to life.

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Areas of expertise:

- Python programming (web environment in particular),
- Cloud technologies (GCP, Kubernetes, AWS, OpenStack, Docker, Terraform),
- Linux systems administration (Debian, Ubuntu, Archlinux),
- Integration test design,
- Codebase audit and refactoring,
- Identification of business metrics and cost optimization.

I also participate in workshops or presentations within companies to promote certain aspects of software development.
  • French

    Native or bilingual

  • English

    Native or bilingual

  • Russian

    Conversational

  • German

    Basic

  • Arabic

    Basic

Remote only
Primarily works remotely

Experience

  • Carrefour
    Python Developer Salesforce
    RETAIL (LARGE RETAILERS)
    January 2026 - Today (5 months)
    Paris, France
    Maintenance and improvement of a Marketing campaign management platform using Salesforce Data Cloud
    Python Programming Salesforce Salesforce Data Cloud FastAPI Kubernetes
  • Display Interactive
    Python Backend Developer
    AVIATION AND AEROSPACE
    June 2024 - June 2025 (1 year)
    Paris, France
    Development and improvement of an internet access system for commercial flights via low-orbit satellites.

    - Worked in a diverse team of 6 people (juniors, seniors, internal, freelancers), interacting with other technical teams (front, DevOps, architecture).

    - Targeted refactoring of the codebase and integration of best practices (dependency injection, decoupling, complexity reduction, etc.).

    - Deployment and management of 12 projects (web APIs, workers, cronjobs) on Kubernetes (AWS): Python, FastAPI, RabbitMQ, Redis, PostgreSQL, SQLAlchemy.

    - Increased test coverage. Migration to Pytest and fixture management with FactoryBoy.

    - Design, implementation, and training of the team on integration tests (Pytest, Docker, Gitlab).

    - Overhaul of the linting system (Black, Docformatter, isort, Mypy, Ruff).

    - Debugging of the existing codebase and deployment of fixes during test flights or important milestones (client visits, etc.).
    Refactoring Python Docker FastAPI RabbitMQ
  • Infarm
    Python Backend Developer | Tech Lead
    AGRICULTURE
    April 2020 - April 2023 (3 years and 1 month)
    Berlin, Germany
    Development, design, and maintenance of a supervision platform for automated vertical farms.

    - Worked in an agile team of 11 people, on a 2-week sprint basis. Supervised a team of 4 Python developers.

    - Development of micro-services to collect, process, and make available telemetry data from over 300 farms (Python, GraphQL, Grafana, Docker, PostgreSQL, Redis, InfluxDB, OpsGenie).

    - Automation of application and infrastructure deployment in the Cloud (Terraform, Kustomize, Kubernetes, GCP).

    - Development of integration tests for Google Cloud Platform (Python, Pytest, GCP IoT, GCP Pub/Sub).

    - Organization of workshops on writing unit and integration tests.

    Technical Stack: Python, Graphql, GCP, Kubernetes, Cloud Functions, Grafana, OpsGenie, Docker, Github Actions, DataDog, Sentry, PostgreSQL, Redis, InfluxDB, Terraform, Kustomize.
    Python GraphQL Grafana Google Cloud Platform (GCP) Terraform

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Education

  • Master in Systems and Network Engineering
    IN'TECH INFO
    2014
  • Computer Science Degree
    Université Paris-Est Créteil (UPEC)
    2010

Certifications

Skill set

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