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Martin SiesseMS

Martin Siesse

Experienced Python/FastAPI Backend Developer

€500/day
Bordeaux, FR
3-7 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Martin

Are you looking for a backend development expert to transform and optimize your SaaS?

🟢 Who am I?

I am a backend developer specializing in Python and FastAPI, with over 3 years of experience in ambitious projects. I contributed to startups like Frichti and Crisp, and having developed my own SaaS, Voscribe, I understand the unique challenges of SaaS development.

🟢 What I offer:

1️⃣ Optimized Architecture: I build and improve your backend architecture to ensure long-term scalability and reliability for your SaaS.

2️⃣ Continuous Innovation: I add creative and high-performing features to constantly enhance user experience and keep your platform competitive.

3️⃣ Team Mentorship: I bring my expertise to guide and support your developers, maximizing your team's productivity and work quality.
  • English

    Fluent

  • French

    Native or bilingual

Can work on-site
Bordeaux (up to 10km), Paris (up to 10km)

Experience

  • Crisp IM
    Backend Developer
    HUMAN RESOURCES
    April 2023 - November 2023 (7 months)
    Nantes, France
    Crisp is an advanced instant messaging solution for businesses, enabling them to manage their entire customer support system.
    Today, Crisp has over 200 million monthly users with fewer than 20 employees.

    I joined the Crisp development team to add new AI-focused features using Python as the programming language. The goal was to save time for existing Crisp users by offering automatic conversation summaries, automatic categorization, article suggestions, and more advanced automatic responses than traditional bots.
    Python LLM Elasticsearch Vue.js AI Back-End Development
  • CoreForTech
    Fullstack Developer
    TRANSPORTATION
    December 2021 - July 2022 (7 months)
    Lille, France
    CoreForTech is a startup developing an embedded system to prevent truck drivers from falling asleep at the wheel.

    I joined this startup to reduce the growing number of bugs and improve the overall architecture to respond more quickly to the needs of large transport companies.
    During my 7-month assignment, we reduced the most problematic bugs to 0 and developed a new prototype entirely in Python, this time intended for all types of drivers.
    Python FastAPI PostgreSQL Back-End Development
  • Hexplo
    Fullstack Developer
    ENTERTAINMENT AND LEISURE
    May 2021 - October 2021 (5 months)
    Paris, France
    Hexplo is a startup democratizing bicycle travel. Today, Hexplo consists of 3 members with a total of 30,000 users in 2024.

    I joined Emmanuel, the CEO, to help him launch the very first version of Hexplo.
    During these 6 months, I developed the entire backend part and assisted Emmanuel with the frontend.
    Upon the launch of the first version, we had a few hundred users.
    Vue.js JavaScript Google Cloud PostgreSQL TDD Clean Architecture Back-End Development

Recommendations

Guillaume I.GI
Lotfi Ben OthmanLB
Guillaume I. and 1 other person have recommended Martin

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Education

  • 42
    42
    2020
    Réalisations de différents projets: - Création d'un moteur de ray-casting pour un jeu type Wolfenstein - Création d'un moteur de Ray-Tracing pour du rendu d'images réalistes
  • PCSI/PC Prep
    Lycée Faidherbe
    2015
    Préparation aux concours des grandes écoles d'ingénieurs. Admis à Centrale Marseille

Skill set

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