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Cécile DuffautCD

Cécile Duffaut

GO (Golang) Developer

€500/day
Paris, FR
3-7 years
GO
Automation
PostgreSQL
Docker
API

Average response time: 1 hour

Freelancer profile translated to English.
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About Cécile

Backend engineer specialized in Go, with hands-on experience in developing REST APIs, backend services, and automation tools.

I work on projects where code reliability, maintainability, and performance truly matter.

I have designed and delivered Go backend services autonomously.

I have worked on production services in an agile environment with rapid iterative cycles.

In parallel, I develop personal Go projects available on GitHub: API with JWT authentication and Stripe integration, booking system with concurrency management, HTTP server, CLI tools... all codebases I can showcase and defend.

I am comfortable with: Go, REST, PostgreSQL, Docker, JWT, Git, Linux.

Available for Go backend missions, preferably remote or hybrid.

  • French

    Native or bilingual

  • English

    Fluent

  • Italian

    Fluent

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

Experience

  • RÉSILIO
    Backend Developer
    SOFTWARE PUBLISHING
    January 2026 - Today (6 months)
    Lausanne, Switzerland
    • Develop and maintain a full-stack application with a PostgreSQL database
    • Fix bugs, improve existing features, and develop new components on a production service
    • Contribute to data ingestion and database enrichment workflows
    • Work in an agile methodology, with ticket tracking and collaborative sprint-based development cycles
    REST API Git Gitlab CI/CD Agile methodology PostgreSQL
  • ZURICH INSURANCE,
    Backend Developer
    SOFTWARE PUBLISHING
    September 2024 - December 2025 (1 year and 3 months)
    Zurich, Switzerland
    • Development of backend applications in Go
    • Design and implementation of data processing and analysis services
    • Development of risk detection mechanisms related to internet domains
    • Automated generation of security reports and analyses
    • Improvement of data workflows and automation of internal processes
    • Design and delivery of technical solutions with high autonomy
    API gRPC Microservices Redis CI/CD

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Education

  • RNCP Level 7 – Information Systems & Networks Master's degree equivalent Project-based engineering education
    ÉCOLE 42
    2026
    RNCP Level 7 – Information Systems & Networks Master's degree equivalent Project-based engineering education
  • RNCP Level 6 – Web & Mobile Development Bachelor's degree
    ÉCOLE 42
    2023
    RNCP Level 6 – Web & Mobile Development Bachelor's degree

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