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Guillaume C.GC

Guillaume C.

Freelance Backend Developer

€750/day
Dompierre-sur-Yon, FR
15+ years

Average response time: 1 hour

Freelancer profile translated to English.
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About Guillaume

After more than a decade spent in IT development as an employee, I decided to go freelance to open myself up to new perspectives.
Until now, my status as a permanent executive offered a certain job security, at the expense of increasingly unfulfilling projects. Following the events related to COVID, I found myself working remotely full-time for 2 years. It was a revelation: working autonomously while maintaining regular communication by phone and videoconference with the rest of my team convinced me to want to adopt this way of working on a larger scale.

Moreover, being a young father, I became aware of the weight of the responsibilities that fall on me. This involves making choices that I want to put into practice to offer him the best possible future. I also want to spend as much time as possible with my family to be there in all circumstances, while providing for our family needs.

This is why I recently resigned from my position, which I had held for almost 6 years, to launch myself as a freelancer with a strong proportion of remote work, by mobilizing the resignation scheme initiated by the "Avenir Professionnel" law.
  • French

    Native or bilingual

  • English

    Conversational

Remote only
Primarily works remotely

Experience

  • Groupama
    Senior JEE Backend Engineer
    BANKING AND INSURANCE
    September 2022 - Today (3 years and 10 months)
    Niort, France
    Intervention within the framework of Groupama's NOVA project on the Cleva software package, mainly on health affiliation and related systems. Database expertise to implement fixes. Participation in code reviews. Proposals and implementation of solutions to reduce the technical debt of the specific implemented in Cleva.
    CLEVA Java SOAP Maven Code Review
  • Ciril (Ciril GROUP)
    Software Engineer
    August 2016 - Today (10 years)
    85000 La Roche-sur-Yon, France
    Attached to the R&D department, I maintain and improve a cross-functional application for managing business flows and electronic document storage for CIVIL range applications to external CMIS and AIRS compatible DMS. I am responsible for developing and integrating reusable components for R&D, as well as participating in various communities within the company. My main tasks carried out so far:
    - Complete porting of source code repositories of all company applications from CVS to GIT (a history of over 20 years);
    - Creation of a plugin for the Java compiler to insert metadata on the fly, which was previously inserted via regular expressions during pre-compilation on our forge;
    - Packaging & deployment of a multi-architecture JRE in our installers;
    - Improvement/recoding of our CMIS server serving as a standardized bridge for external actors;
    - Implementation and administration of code analysis rules for our enterprise SonarQube server;
    - Creation of a plugin for SonarQube to detect SQL injections in the Java part of our applications;
    - Participation in the writing and maintenance of an on-the-fly Pl/SQL to Pg/SQL transpiler for interoperability of our software between Oracle and PostgreSQL;
    - Complete ergonomic redesign of the administration of the cross-functional application for which I was initially recruited;
    - Recovery of inconsistent databases from some clients;
  • Orkeis
    Study & Development Engineer
    October 2014 - July 2016 (1 year and 9 months)
    85000 La Roche-sur-Yon, France

    - Creation of REST services to populate and perform searches in databases;
    - Development of support for the ICT220 payment terminal in USB mode;
    - Analysis of network traffic concerning data flows to improve performance in collecting customer data;
    - Develop a service to bill our customers for transactions from payment methods, telephony, and other additional services to the X3 ERP; Implementation of a service to process customer information from their terminals to the X3 ERP.

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Education

  • Master's Degree in Software Engineering
    EPSI Nantes
    2009
    Ingénieur Grande Ecole, Génie Logiciel
  • Higher National Diploma in Management Computing, Programming / IT developer, general
    Lycée Notre Dame du Roc
    2006
    BTS Informatique de Gestion, Programmation / développeur informatique, général

Skill set (41)

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