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Damien ChaudoisDC

Damien Chaudois

Senior Fullstack .NET Developer Freelance

€444/day
Lyon, FR
8-15 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Damien

Senior fullstack developer, 11 years of experience primarily in .NET environments. I work across the entire development chain: design, architecture, backend and frontend, databases, CI/CD, and complex problem-solving. I have experience in both large corporations and agile contexts, including mentoring junior profiles and taking on technical lead responsibilities. I use coding agents (Claude Code, GitHub Copilot) daily as accelerators for development, testing, and documentation.
  • French

    Native or bilingual

  • English

    Native or bilingual

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

Experience

  • Diot-Siaci
    Senior Fullstack .NET Developer
    BANKING AND INSURANCE
    February 2026 - Today (6 months)
    Lyon, France
    Development of a new application from scratch with two parts: an administration section and a portal for employee users. The product allows administrators to create and configure personalized affiliation paths, so that each employee only enters the information strictly necessary for their affiliation. As each campaign is specific to the client, the insurance provider, and the subscribed options, the application manages tailor-made paths. Involvement in the entire stack: frontend, backend, database, DevOps, project tracking in an agile environment, and participation in detailed design decisions under the leadership of the lead dev. Implementation of numerous features covering varied functional and technical challenges. Advanced use of coding agents such as GitHub Copilot and Claude Code, via contextualized instruction files, to accelerate development, testing, and documentation.
    C# .NET Vue.js PostgreSQL Azure DevOps
  • Eurosport
    SENIOR FULLSTACK .NET DEVELOPER
    FILM AND AV
    January 2024 - May 2025 (1 year and 4 months)
    Paris, France
    Two projects managed in parallel:

    - Creation from scratch of a BUS piloting application.
    - Maintenance and evolution of a TV guide management application.

    BUS Piloting Application

    Complete design of the architecture and application design. Choice of technologies, design patterns, functional scope, infrastructure, and tools. Setup of the work environment: Jira, CI/CD pipelines under Azure DevOps, and deployment on Azure. Mentoring and training of two junior developers, code review and validation, daily technical support.

    TV Guide Management Application

    Maintenance, bug fixing, and addition of new features on the front-end and back-end, without major architectural redesign. Tracking of tickets defined by Product Owners and participation in discussions between stakeholders and developers to find the most relevant technical solutions. Regular debates on Clean Code best practices, management of stored procedures vs. direct SQL queries, and optimization of existing code.

    The high degree of decision-making autonomy on the from-scratch project proved particularly stimulating, and collaboration with junior developers was very enriching and enjoyable.
    IT Architecture External API Integration IT Project Management CI/CD Management Database Management
  • Seloger
    SENIOR FULLSTACK .NET DEVELOPER
    REAL ESTATE
    September 2022 - January 2024 (1 year and 4 months)
    Paris, France
    Development and maintenance of a B2B sales offer publication website specialized in offices. Team of 4 people: 3 developers and 1 Product Owner.

    Analysis of client needs and writing of corresponding tickets. Participation in team discussions to define solutions while respecting performance constraints, development deadlines, and limiting technical debt. Creation and updating of UI components in React and jQuery. Handling complex technical constraints: in-house testing frameworks, coexistence of two versions of React. Implementation of front-end logging for monitoring via CloudWatch.

    Weekly backend improvement sessions via live-coding with 3 developers, dedicated to resolving technical debt. Rigorous tracking of the technical debt backlog and identification of pitfalls to avoid when implementing new features.

    Interventions alternating between adding new front-end features to improve the site's accessibility and aesthetics, and backend maintenance to ensure zero downtime.
    React.js Vue.js IT Project Management External API Integration Workshops Facilitation

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Education

  • BTS IRIS Computer Science
    LYCÉE GEORGES BRASSENS
    2014
    BTS IRIS Informatique
  • MASTER SOFTWARE ARCHITECTURE
    ESGI
    2019
    Fait en alternance chez Expaceo, ESN en Île de France

Skill set

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