About Johnson
French
Native or bilingual
English
Fluent
Experience
- Fotetsa SARLFullstack Developer (backend-oriented)SOFTWARE PUBLISHINGSeptember 2024 - Today (1 year and 9 months)Douala, CameroonDesigned and developed RESTful APIs for applications using Express.js and Node.js. Improved the modularity and scalability of backend systems through architectural review. Integrated authentication and authorization systems via OAuth and JWT. Optimized database (pool and cluster) and API performance. Integrated AWS and Google Cloud services for deployment and scalability. Collaborated with the frontend team for integration between user interfaces (Vue.js, React Native) and backend services. Automated CI/CD pipelines with GitHub Actions and AWS applications. Participated in code reviews and improved the architecture of the SOPRENA product. Developed scalable web applications (BOMA) on the Shopify, Wordpress, Wix platforms.
- FreelanceFullstack DeveloperSOFTWARE PUBLISHINGJanuary 2022 - September 2024 (2 years and 8 months)Douala, CameroonDesign and development of the Obus application in fullstack (Firebase Realtime Database, MySQL, payment engine (MTN, Orange), complete navigation and geolocation system with MAPBOX, dual authentication (email, OTP,) with Google OAuth and JWT), test version available at obus-test.web.app. Design and realization of the websites fotetsa.com and afritec.net, ensuring seamless integration between frontend and backend with email notification system, lead management, backoffice. Use of modern technologies like Express.js, Node js, React js, Vue.js, Firestore, and Tailwind CSS to deliver high-performance and aesthetically pleasing solutions. Delivered via AWS Amplify, Google Firebase. Management of the entire BOMA project lifecycle, from conception to deployment, respecting deadlines and client requirements. (AWS Codepipeline, AWS codeBuilds, AWS codedeploy).
- Afritec ltdWeb DeveloperSOFTWARE PUBLISHINGNovember 2023 - February 2024 (3 months)Paris, FranceContributed to the creation and maintenance of the back-office and internal management applications. Participated in optimizing backend service performance and resolving technical issues on inventory management software. Assisted in collecting and documenting user needs. Prepared reports, manuals, and other documents on the status, operation, and maintenance of software. Determined and documented website requirements with clients.
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Education
- Master en Cybersécurité et CyberdéfenseÉcole Nationale Polytechnique de Douala2025Master en Cybersécurité et Cyberdéfense
- Bachelor en Génie InformatiqueIUT DoualaBachelor en Génie Informatique
Certifications
- Google CybersecurityGoogle2025