Karim Mannai

Building an e-learning platform using RedwoodJS, Prisma, and GraphQL Implementing Uppy to fetch files locally and remotely from Google Drive and Dropbox Building a search engine from scratch using apache lucene and fuzzy search Implementing infinite scrolling to reduce server load and improve user experience and server performance

Built Back-end services in NodeJs/ExpressJs to set up restaurant managing, delivery, and mailing systems Increased the overall quality of the system and identify defects by using Mocha and Chai to make unit/Integration tests Implemented a gateway payment module that uses different payment solutions such as Stripe, Paypal, Visa... Built a feedback system using Google places API for transparency purposes Applied TDD and BDD approach to increase code quality

Built the UML diagrams to concept projects' needs and specifications Decomposed microservices by subdomain context (HospiTech project) Implemented back-end microservices in Spring Boot and NodeJs using Consul service discovery and Zuul API Gateway Implemented a WebRTC technology to provide a voice and video-communication solution using PeerJs Implemented TensorFlow to use machine learning APIs such as face and emotions detecting Implemented an Apollo GraphQL Server (BeNeutron Project)

Built a web and mobile application from scratch Created UML Diagrams (use case, sequence, class, activity ...) Implemented the back-end system in NodeJs/ExpressJs Built an authentication system using JWT and social media authentication (Google/Facebook)