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Julien G.JG

Julien G.

Senior Fullstack .NET/Web Developer

€550/day
Nantes, FR
8-15 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Julien

After a 5-year permanent contract with a small software publisher specializing in medical center management, I am currently restarting a freelance activity to diversify my work.

Living a nomadic life for 7 years, remote work and freedom in my intervention method are a priority if I have to work with a company. I compensate for these advantages with strong expertise, total autonomy, and I can travel occasionally anywhere in the world if needed.

With 10 years of experience in application development, I have been passionate about .NET technologies since 2007, the year I started my studies. I am proficient in the entire Microsoft technology stack, for general application and web development, technological consulting, technical project leadership, training, and expertise.

I enjoy diverse, quality work and dynamic work environments in an agile spirit. I systematically strive to produce modular, maintainable, documented code that is as simple as possible and respects existing best practices and design patterns.

My full CV here
  • English

    Fluent

  • French

    Native or bilingual

  • Spanish

    Basic

Remote only
Primarily works remotely

Experience

  • INFORMATIQUE SERVICE 34
    .NET/Web Fullstack Developer
    MEDICAL
    January 2019 - December 2023 (5 years)
    - Responsible for the technical redesign of the GECKOS software, management software specialized in the medical field (CMPP/CESSAD).
    - Stack upon arrival: Visual Studio 2010, .NET Framework 4.0, Silverlight, WCF, Entity Framework 5
    - Stack upon departure: Visual Studio 2022, .NET 8, Blazor Server/Web Assembly, CSS/SASS, REST API, Entity Framework Core 8
    - Worked in complete autonomy and remotely, in constant communication with the company's CEO.
    - Responsibilities: analysis and understanding of the existing system, architecture definition, implementation of quality standards, ergonomics improvement, development of the entire application with the latest advancements in the web and .NET world.
    - 2019: Rewriting the Silverlight front-end in Blazor Server/WebAssembly, synchronizing C# code between applications to allow parallel use of both applications on the same code.
    - 2020: Front-end stabilization, gradual deployment to our clients.
    - 2021: Gradual attempt to port the back-end to .NET 7. Various functional improvements (electronic signatures, internal messaging/email system through the application, business alerts systems).
    - 2022: Deep rewrite of the business and technical parts to certify the Geckos software for SEGUR certification (https://esante.gouv.fr/segur).
    - 2023: Finalization of the porting of all code, abandonment of the old application and its support, general deployment, gradual improvement of the old code
    ASP.NET Core Blazor Entity Framework Core SASS/SCSS Bootstrap 5 Microsoft Visual Studio SQL Server IIS
  • CTEasy.com
    .NET/Web Fullstack Developer
    E-COMMERCE
    January 2016 - October 2018 (2 years and 9 months)
    Nantes, France
    - Assisting the client in their digital strategy. Gathering requirements, analysis, costing, and development. Work done in collaboration with another freelancer who focused more on project management and part of the architecture.
    - 2016: V3 Development. Rewriting the site in the Umbraco CMS and migrating to ASP.NET MVC. Development of the SPA purchase funnel. Development of a back-end in AngularJS for CTEasy staff and customer service. Implementation of online appointment booking by developing connectors to a multitude of schedulers used by technical control centers.
    - 2017: V4 Development. Complete rewrite of the business layer for maintainability, performance, and service quality. Database cleanup. Integration of payment directly into the purchase funnel. Automatic payment of centers by generating a daily transfer file. Traceability of all financial movements for automated accounting generation (FEC). Redesign of log management, email, and SMS sending. Complete graphic redesign.
    - 2018: V5 Development. Complete redesign of the offer logic on the site through the implementation of revenue management. Algorithm for calculating the schedule offered to clients and the prices associated with time slots based on the Revenue Management model associated with the center. Offline operation with synchronization of available and booked slots in the background or by webhooks depending on the schedulers. Evolution of the Angular back-end to handle complex sales models associated with each center. Implementation of multiple vehicle types and energies.
    E-commerce C# JavaScript CSS SQL Server Angular JavaScript SEO Online Payment
  • Conseil Investissement Innovation
    .NET/Web Fullstack Developer: Financial Asset Management Software Asset Monitoring.
    SOFTWARE PUBLISHING
    March 2015 - October 2015 (6 months)
    Nantes
    - Development of the AssetMonitoring solution, a web-based and responsive asset management software for financial asset managers and their clients.
    - Backend development of a rule engine for calculating commissions paid by banks to advisors based on their clients' financial transactions.
    - Backend development of a module for importing actual commissions paid by banks, development of the algorithm for matching actual and theoretical commissions to highlight discrepancies.
    - Frontend development of views summarizing discrepancies between theoretical and actual commissions, and administration and configuration views for the commission calculation and import engines.
    - Site industrialization: Harmonization of frameworks. Redesign of Razor/jQuery pages towards a SPA Knockout/WEB API logic. Implementation of Web and Object development best practices. Construction of the internal development framework. Harmonization of Bootstrap design across the entire site.
    ASP.NET MVC Bootstrap JavaScript

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Education

  • Master's degree in MIAGE, Information Systems Engineering option, work-study program
    Faculty of Science and Technology of Nantes

Skill set (31)

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