Freelancer profile translated to English.
Back to original languageAbout 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 SASSenior Front-End EngineerTECHJanuary 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.
- SPVIE AssuranceSenior Front-End EngineerMEDICALJuly 2022 - Today (3 years and 11 months)Paris, FranceSPVIE 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
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Education
- Master of Software EngineeringESTM2018Master Génie Logiciel
- Bachelor of Software EngineeringESTM2015Licence Génie Logiciel