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Jean-Baptiste FeldisJF

Jean-Baptiste Feldis

Supermalter

Senior Ruby/Rails Developer & Trainer

€888/day
3 projects
Saint-Vincent-de-Tyrosse, FR
15+ years

Average response time: 1 hour

Freelancer profile translated to English.
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About Jean-Baptiste

20 years of development, quite a bit of training (at Le Wagon but also internally on the projects I participate in).

I support tech teams to increase their efficiency and serenity.

My time is currently mostly dedicated to DINUM, but I can help you with:

✓ Team support: skill development, best practices
✓ Ruby on Rails Training (all levels)
✓ Technical Leadership: code reviews, architecture, mentoring
✓ Code audit and technical debt
✓ Development: MVPs, new features, refactoring (depending on the required time commitment!)

I work remotely (from the South of Landes) but I can come visit you with pleasure (and regularly if necessary).
  • French

    Native or bilingual

  • English

    Fluent

  • Portuguese

    Fluent

  • Spanish

    Conversational

Can work on-site
Saint-Vincent-de-Tyrosse (up to 50km)

Experience

  • DINUM
    Senior Software Engineer
    PUBLIC SECTOR
    April 2024 - Today (2 years and 2 months)
    Paris, France
    Senior Engineer in the Restricted Data team.

    Products: DataPass (management of government API authorizations) and the "Family Quotient Transmission Form" with extensive exchanges on API Particuliers, HubEE, and FranceConnect.

    Stack: Ruby on Rails, PostgreSQL, Redis, Sidekiq, DSFR

    Remote with monthly meetups
    Ruby on Rails Mentoring DSFR API PostgreSQL
  • Colonies
    Senior Software Engineer
    REAL ESTATE
    September 2021 - December 2023 (2 years and 3 months)
    Paris, France
    Senior Software Engineer in a coliving startup during Series A funding.

    Improvement of the back-office for tenant management, contracts, and invoicing. Unification of the availability system, onboarding of new lease types, complex invoicing via Stripe Connect.

    Stack: Ruby on Rails, PostgreSQL, Heroku, dry-rb, reform, Stripe Connect

    Remote with monthly meetups.
    Ruby on Rails Tech Lead Stripe Mentoring PostgreSQL
  • Kard
    Senior Back-end Engineer
    BANKING AND INSURANCE
    February 2019 - September 2020 (1 year and 7 months)
    Paris, France
    Senior Back-end Engineer, among the first employees, I had the opportunity to participate in the complete technical setup: back-office, core banking API integration (Bankable), transaction qualification, GraphQL endpoint (queries and mutations).

    Stack: Rails API, PostgreSQL, Redis.
    Particular attention to performance, security, and KYC.

    Remote with monthly meetups
    TDD Ruby on Rails GraphQL API Banking and Financial Services

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Education

  • Master of Engineering
    University of Paris I: Panthéon-Sorbonne
    2008
    Master, IT Engineering, project leading, business matters
  • DUT, Computer Software Engineering
    IUT Sénart Fontainebleau
    2005
    DUT, Computer Software Engineering

Skill set

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