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Alpha Ibrahima NdiayeAI

Alpha Ibrahima Ndiaye

Senior Front-End Engineer (React / React Native)

€400/day
Rennes, FR
3-7 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Alpha Ibrahima

Senior Front-End Developer with over 6 years of experience, specializing in React.js and React Native.
Worked on production web and mobile applications with significant business impact (insurance, digital services).
Strong focus on code quality, performance, security, and user experience. Experienced in
Agile environments and multidisciplinary teams.
  • English

    Native or bilingual

  • French

    Native or bilingual

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

Experience

  • CONCREE SAS
    Senior Front-End Engineer
    TECH
    January 2019 - July 2022 (3 years and 6 months)
    Dakar, Senegal
    • Development and maintenance of web and mobile applications (Ajesud, Lezgo, Parerba)
    • Launch of 3 applications in production
    • +20% improvement in front-end performance
    • Front-End: React.js | Back-End: Ruby on Rails
    • Unit tests and continuous integration (RSpec, Jasmine, GitLab CI)
    • Agile Scrum and Kanban methodologies.
    React.js Typescript redux React Native Expo
  • SPVIE Assurance
    Senior Front-End Engineer
    MEDICAL
    July 2022 - Today (3 years and 11 months)
    Paris, France
    SPVIE Assurance – French group (insurance)
    • Web Development – React.js / Next.js
    • Complete overhaul of the web subscription process, including:
    • • Advanced form validation
    • Robust input error handling
    • Electronic signature integration
    • Design and development of a white-label subscription process, easily customizable for multiple clients
    • Significant improvement of the user experience (UX/UI), based on analysis of user journeys and friction points • Increase of +40%
    in user engagement and notable improvement in conversion rates
    • Strict application of clean code best practices:
    • • SOLID principles
    • Code quality via ESLint, SonarLint
    • Productivity aid with GitHub Copilot
    • Implementation of an automated testing strategy:
    • • Unit and integration tests (TDD)
    • Continuous integration (CI/CD)
    • Mobile Development – React Native (iOS / Android)
    • Improvement and stabilization of the existing mobile application:
    • • Performance optimization
    • Critical bug fixes
    • Improvement of ergonomics and navigation
    • Development and optimization of the mobile subscription process, aligned with the web version
    • Implementation of mobile security mechanisms:
    • • OAuth2 authentication
    • JWT token management
    • Integration with Keycloak
    • Implementation of automated tests and securing the mobile pipeline
    • Work in Agile Scrum methodology:
    • Regular code reviews
    • Close collaboration with product and QA teams
    React Native React.js Expo Typescript redux

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Education

  • Master of Software Engineering
    ESTM
    2018
    Master Génie Logiciel
  • Bachelor of Software Engineering
    ESTM
    2015
    Licence Génie Logiciel

Skill set

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