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Jean-François PalmierJP

Jean-François Palmier

Supermalter

FullStack .NET / React Developer

€550/day
3 projects
Rennes, FR
8-15 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Jean-François

Independent .NET Tech Lead with over 15 years of experience, I am involved in the design and optimization of critical systems with high volume and in various business sectors.

With a resolutely hands-on approach, I focus on code quality, performance, and building robust, sustainable, and resilient solutions.

Accustomed to demanding environments (finance, SaaS, public sector), I also support teams in their skill development and the improvement of their delivery.
  • French

    Native or bilingual

  • English

    Fluent

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

Experience

  • SOCIETE GENERALE
    Software Engineer - .NET / React
    BANKING AND INSURANCE
    September 2024 - Today (1 year and 11 months)
    Nantes, France
    Intervention on a scope of 8 critical applications in the financial markets domain, with high requirements in terms of performance, quality, and security.

    Responsible for their continuous evolution, I contributed to the overall improvement of the technical foundation and the reliability of applications in a high-stakes context.
    Development of complete applications or new features on existing ones, optimization and refactoring of APIs and gRPC services.

    Azure migration of our various assets, as well as the various outgoing APIs.

    Implementation of strong technical features (OpenTelemetry, FeatureFlagging, inOutLogging, ...) on the company's common components.
    Participation in 2 internal hackathons, whose solutions were validated and then implemented.
    Creation of an automated technical documentation generation solution, based on LLM.
    International and English-speaking context: Hong Kong, London, Paris, New York, Bangalore.
    Stack: .NET 10, React 18, SignalR, Redis, Azure, AKS, ELK, ArgoCd, Github Actions
    .NET React Typescript Microsoft Azure gRPC
  • Morbihan Energies
    Lead Tech / Architect
    ENERGY AND UTILITIES
    September 2022 - August 2024 (1 year and 11 months)
    Vannes, France
    Complete redesign of a business ERP used by several hundred users, with responsibility for defining needs, architecture, and technical implementation in full autonomy.

    Design and implementation of the overall solution architecture, adapted to business constraints and a multi-module ecosystem.
    Development of a fully automated and configurable business workflow engine, enabling the orchestration of business processes (request routing, notifications, blocking rules, escalations).
    Implementation of real-time flows for data synchronization, communication between services, and client messaging (chat, notifications, ...).
    Setup of the technical infrastructure (Docker, CI/CD GitLab) and structuring of environments.
    Definition and implementation of development best practices (quality, testing, conventions).
    Mentoring and coaching a team of 5 developers, improving their autonomy and delivery quality.
    Client support: needs assessment, regular demonstrations, and evolution monitoring.
    Scrum Master role to structure the organization and improve Agile practices.
    Stack: .NET 8, Angular 15, Blazor Server, SignalR, PostgreSQL, MongoDB, Docker, GitLab CI
    .NET Blazor Angular Docker MongoDB
  • Kurmi Software
    Product Owner
    TELECOMMUNICATIONS
    September 2021 - August 2022 (11 months)
    Rennes, France
    I am responsible for optimizing the security, performance, and software architecture of our product, as a Product Owner.
    I also have a second role, which is the migration of our On-Premise tool to SaaS as a Product Manager. My goal is to create the tool that best meets our clients' needs, and to synchronize the different teams involved in its implementation.
    Kurmi being an international company, English is the primary language.
    Product Management Scrum Cybersecurity Cloud computing Microsoft Azure

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Education

  • Master of Science in Computer Science
    SUPINFO International University
    2011
    Master's degree, Computer Science
  • Master of Information Management
    Dominican University of California
    2011
    Master's degree, Management Information Systems, General

Certifications

Skill set

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