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Léo JegoLJ

Léo Jego

FULL-STACK DEVELOPER

€200/day
Pontivy, FR
0-2 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Léo

Motivated developer, specializing in web and IoT, with hands-on experience in software redesign, full-stack development, and technical solution integration. Curious and adaptable, I quickly learn new environments and tools. I am eager to contribute to innovative projects today.
  • French

    Native or bilingual

  • English

    Fluent

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

Experience

  • JOB-STAGING
    Developer
    HUMAN RESOURCES
    November 2025 - December 2025 (1 month)
    Vannes, France
    - Optimization and structuring of a no-code ATS (internal, client, and partner): creation and improvement of fields, statuses, advanced filters, and exports (CV / candidate profiles).
    - Development of precise searches (CV, summary, geography, gender, diploma, school) to improve candidate qualification and matching.
    - Implementation and improvement of automated workflows between tools (KerIT ↔ ATS, Tactiq, HelloWork, Cal, HubSpot), including retrieval and processing of candidate data.
    - Structuring of budget tracking for job offers: quotes (sent / signed), down payments, balances, mission statuses, and recruiter tracking.
    - Improvement of Softr interfaces and the client extranet: display of offers, events, overview pages, search bars, carousels, and key indicators.

    Tools used: Airtable (advanced), Softr (advanced), automations & scripts (Make, Zapier, Custom JS), LinkedIn Webclipper, Tactiq, Dealfront, Aeropage, WordPress, Google Drive, Cal, HubSpot.
    No code ATS Airtable Make Automation
  • CGI
    Full Stack Developer
    SOFTWARE PUBLISHING
    September 2024 - August 2025 (11 months)
    Larmor-Plage, France
    - Full-stack web development on the CGI Retail Suite platform: creation and evolution of business screens in React.js and development/extension of APIs in NestJS.
    - Design of complete features: email address management in orders, CSV file import (UI/UX, business logic, error display, notifications).
    - Advanced screen configuration via display settings: adding/removing fields, user rights management, widget optimization, and interface harmonization.
    - Redesign and improvement of existing screens: front-end rework for better ergonomics, use of internal framework components, workflow modernization.
    - Software quality and code reliability: writing unit, integration, and E2E tests; participation in code reviews; bug fixes on internal screens and components.
    - Cross-functional technical contribution: creation of reusable components for the team and backend adaptation (DTO, API) to integrate new use cases.

    Results & impact
    - Features delivered, tested, and validated by the PO, now integrated into the platform.
    - Improved user experience: clearer interfaces, smoother actions, optimized navigation.
    - Reduced processing time for users (e.g., automated import of order lines).
    - More reliable components and screens, compliant with project quality requirements.
    - Enhanced full-stack skills and increased autonomy in analysis, development, and testing.
    React.js External API Integration Node.js NestJs Typescript
  • IoT.bzh
    IoT Developer
    INTERNET OF THINGS (IOT)
    May 2023 - June 2023 (1 month)
    Lorient, France
    - Setup of a complete energy monitoring system for IoT.bzh equipment: definition of data to be collected, study of SNMP protocols, and exploration of MIBs via iReasoning.
    - Design and deployment of a time-series database with InfluxDB: bucket creation, retention management, measurement and tag structuring.
    - Automation of data collection via Telegraf: SNMP plugin configuration, periodic extraction of equipment OIDs, reliable and continuous recording in InfluxDB.
    - Development of a web visualization interface (HTML/CSS/JS, Chart.js, PHP): creation of interactive graphs, period selection, visual optimization, back-end processing via Flux requests.

    Results & impact
    - Functional energy monitoring system installed, centralized, and automated.
    - Clear and real-time visualization of electrical consumption (graphs, HMI, API).
    - Successful integration of the Linky meter into the company's home automation infrastructure.
    - Time savings and increased reliability in monitoring electrical equipment.
    - Complete documentation, allowing for easy project handover and evolution.
    JavaScript Database Internet of Things Design Technical Documentation

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Education

  • BACHELOR INFORMATION SYSTEMS DESIGNER
    Facultés des Métiers, Lorient
    2025
    Mention Très Bien
  • BTS SNIR (IT and Digital Systems)
    Lycée St Joseph - LaSalle, Lorient
    2024
    Programmation • Maintenance systèmes & réseaux • Electronique • Option Cyberdéfense

Certifications

Skill set

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