Freelancer profile translated to English.
Back to original languageAbout Gaël
I work on projects where data reliability and consistency are crucial for the smooth running of the business. My mission is to focus on the technical foundations to make systems more transparent, reliable, and easier to adapt.
In many companies, tools have been developed gradually to meet pressing requirements. Over time, this can cause problems: data that is difficult to use, time-consuming manual processes, slowness, scattered business logic, or a lack of clarity about what already exists. These issues often directly impact productivity and decision-making.
My approach always begins with understanding the specific context: usual practices, professional constraints, obstacles, and medium-term goals. This study helps to identify the root causes of problems and avoid unnecessary or excessive solutions.
I then work to clarify data flows, simplify what can be simplified, and secure critical elements. The goal is not to redo everything, but to improve the existing system progressively and in a controlled manner, without disrupting operations.
I pay special attention to the maintainability and evolvability of the solutions I implement. Systems must remain understandable over time while facilitating modifications without compromising their integrity.
I favor a collaboration based on clear and regular communication, so that the choices made are understood and aligned with actual needs. The ultimate goal is to provide a reliable technical foundation that allows teams to focus on their work without being hindered by their tools.
French
Native or bilingual
English
Conversational
Can work on-site
Sens (up to 50km), Paris (up to 20km)
Experience
- YSISQL DeveloperRETAIL (LARGE RETAILERS)October 2023 - Today (2 years and 9 months)Long-term mission for U Guyane as a backend developer, specializing in the processing and automation of business data.I worked on optimizing internal processes related to commercial, logistical, and supplier flow management.The data came from multiple sources (CSV files, application exports), which I reprocessed using complex SQL queries under MySQL/MariaDB.Main achievements:
- Automation of CSV file import into a MySQL database,
- Development of a system for managing and processing supplier invoices,
- Monitoring of floating containers and structuring of associated flows,
- Implementation of an order automation logic,
- Active participation in order management through a robotic system (automatic product picking from bins),
- Development of tools for inventory tracking, including discrepancy processing, stock analysis, and data export,
- Creation of Qlik dashboards for daily management (sales, orders, stockouts, etc.).
This mission allowed me to gain concrete knowledge of the operational functioning of a mass retail chain, in direct collaboration with local teams: supply, purchasing, inventory, and store management. - AdenisSupport TechnicianTECHOctober 2021 - December 2022 (1 year and 2 months)Bagnolet, FranceInternship at Geimex as a proximity technician, during the company's acquisition by the Casino group.I participated in the complete update of the IT equipment in stores and offices to integrate them into the acquiring group's standards.This mission allowed me to work on a concrete large-scale migration project, in direct contact with users and central technical teams.Activities performed:
- Diagnosis of existing hardware and replacement of obsolete workstations,
- Complete reconfiguration of user workstations (system, access, software),
- Verification of network access, connectivity, and installation compliance,
- On-site user support: assistance with getting started and resolving issues,
- Coordination with Casino group technical referents for the smooth running of operations.
This experience allowed me to strengthen my technical skills in the field, develop my autonomy, and work in a critical transition context for the company.
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Education
- Bachelor in Angular DevelopmentStudiFormation centrée sur le développement frontend avec Angular, complétée par des notions de TypeScript, HTML/CSS, et de consommation d’APIs REST. Le programme couvre la création de composants dynamiques, la gestion des routes, des formulaires réactifs, ainsi que l’architecture modulaire d’une application. Il inclut également la gestion de l’état, l’optimisation des performances, les tests unitaires, et les bonnes pratiques de développement Angular (RxJS, services, injection de dépendances).
- Bachelor in Information Systems Project DesignETNA2023Formation axée sur le développement web et mobile, les pratiques DevOps et la gestion de projets informatiques. Le programme couvre le développement fullstack (HTML, CSS, JavaScript, React, Vue.js, Node.js, Python), la conception et l’intégration d’APIs, ainsi que la gestion de bases de données relationnelles. La partie DevOps inclut l’utilisation de conteneurs Docker, l’automatisation via CI/CD, la gestion d’environnements et la surveillance d’applications. En gestion de projet, la formation aborde les méthodes agiles (Scrum, Kanban), le suivi de projet, la planification, la documentation et la communication technique.