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Léo PerrigueyLP

Léo Perriguey

Software Engineer

€400/day
Paris, FR
3-7 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Léo

Back-end software developer, I help companies design, evolve, and maintain their business applications and tools.

I work on projects in Python, C#, and C, whether it's developing an API, automating processes, creating an internal tool, or evolving an existing application. My experience has also led me to work in environments with high quality requirements, particularly in the aeronautics and defense sectors.

Curious, rigorous, and quickly autonomous, I appreciate projects where code quality, maintainability, and understanding business needs are the top priorities.
  • French

    Native or bilingual

  • English

    Fluent

Can work on-site
Paris (up to 50km)

Experience

  • Scalian
    Digital Systems Engineer
    June 2022 - November 2025 (3 years and 5 months)
    Antony, France
    Involvement in several projects in the aeronautics, defense, and industry sectors, within teams in critical environments.

    • Software validation in a DO178B context for MBDA: analysis of test results, verification of deliverable compliance, and requirements traceability.
    • Participation in the qualification and validation of an embedded operating system at Asterios (formerly Krono-Safe): development of tests in C and automation of test campaigns in Python.
    • Review of embedded software test reports and anomaly tracking for Safran.
    • Development of an industrial human-machine interface (front-end and back-end) in C# for CILAS.

    Environments: C, C#, Python, DO178B, embedded software, validation, critical systems, Git.
    Python C# Git DO178B C
  • Eiffel Technologies
    Junior React Native Developer
    March 2021 - October 2021 (7 months)
    Participation in the development of mobile applications in React Native within a development team.

    • Development of new front-end and back-end features.
    • Maintenance and evolution of existing applications.
    • Participation in design, development, and bug fixing phases.
    • Collaboration with project teams in an Agile environment.

    Technologies: React Native, JavaScript, REST API, Git.
    Git React Native JavaScript API REST APIs
  • LumiTHD
    Software Developer
    February 2018 - August 2018 (6 months)
    Development of business tools for designing engineering plans for fiber optic deployment.

    • Development of back-end features in Python.
    • Manipulation and exploitation of technical data via PostgreSQL.
    • Corrective and evolutionary maintenance of internal applications.
    • Participation in the improvement of tools used for FTTH network deployment projects.

    Technologies: Python, PostgreSQL, SQL, Git.
    Python Git PostgreSQL SQL Django

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Education

  • Degree
    l'école 42 42
    2014
    Diplôme de
  • Master of Science in Information and Systems
    Université Aix-Marseille II
    2012
    Master Science de l'Information et des Systèmes

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