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Didier B.DB

Didier B.

Expert RoR | CTO | AI

€650/day
Paris, FR
15+ years

Average response time: 1 hour

Freelancer profile translated to English.
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About Didier

With over 15 years of experience in software development, I specialize in the Ruby on Rails ecosystem, API design, backend architecture, and technical team management. As a Lead Developer at Delubac and Altares, I led the implementation of critical applications in Docker/Kubernetes environments, ensuring both technical quality and team cohesion through agile rituals.

My expertise ranges from application cybersecurity to SSO/Keycloak/Auth0 integration, PostgreSQL performance, infra-as-code (Ansible), and complex business workflow optimization.

Curious, rigorous, and impact-oriented, I am committed to projects where clean code, scalability, and continuous improvement are top priorities. I am looking to move into roles that combine product vision with technical excellence in a collaborative and innovative setting.
  • French

    Native or bilingual

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

Experience

  • AXCIO-DATA
    APPLICATION DEVELOPMENT MANAGER
    CIVIL ENGINEERING
    November 2025 - April 2026 (5 months)
    Neuilly-sur-Seine, France
    Managed and developed a multi-client document management business application (files, documents, shares, orders/licenses, QR codes, integration with collaborative editor like OnlyOffice).
    Implemented authentication, roles, and access rights (Devise, CanCanCan), asynchronous tasks (GoodJob, Redis), and object storage (Active Storage, AWS S3).
    Quality and industrialization: RSpec tests, security analysis (Brakeman), containerized deployment (Docker, Kamal), TLS reverse proxy (Caddy).
    Kamal Ruby on Rails PostgreSQL Tailwind CSS Stimulus
  • COINHOUSE
    EXPERT RUBY ON RAILS DEVELOPER
    BANKING AND INSURANCE
    July 2025 - October 2025 (3 months)
    Paris, France
    Managed and developed a multi-client document management business application (files, documents, shares, orders/licenses, QR codes, integration with collaborative editor like OnlyOffice).
    Implemented authentication, roles, and access rights (Devise, CanCanCan), asynchronous tasks (GoodJob, Redis), and object storage (Active Storage, AWS S3).
    Quality and industrialization: RSpec tests, security analysis (Brakeman), containerized deployment (Docker, Kamal), TLS reverse proxy (Caddy).
    PostgreSQL Ruby on Rails Bootstrap 5 AWS Docker
  • Altares D&B
    LEAD DEV RoR
    SOFTWARE PUBLISHING
    April 2019 - August 2024 (5 years and 4 months)
    Colombes, France
    Developed new features for existing applications and APIs.
    Technical lead
    Managed the team and facilitated stand-ups.
    Ruby on Rails Stimulus Gitlab CI/CD AWS Auth0

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Education

  • Expert in information systems and computer networks
    SUPINFO
    2010

Skill set

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