2-paragraph first-person bio, friendly tone

Omar Jlassi

2-paragraph first-person bio, friendly tone

Available to hire

2-paragraph first-person bio, friendly tone

Experience Level

Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Intermediate
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Language

Arabic
Fluent
English
Fluent
French
Advanced

Work Experience

Full Stack Developer at REO TECH
January 1, 2024 - November 9, 2025
Responsible for maintaining and enhancing mobile applications built with React Native and NestJs; engineered robust REST/GraphQL back-ends with Node.js and Express; implemented unit tests with Jest; improved data fetching with GraphQL/Apollo; improved app performance, fixed critical bugs, and collaborated with UI/UX teams; deployed secure authentication via AWS Cognito; worked in an Agile SCRUM environment with cross-functional teams to ensure high-quality, on-time deliveries.
Full Stack Developer at Agricultural Sales & Engagement Platform (React Native + NestJs)
December 31, 2023 - December 31, 2023
Optimized and enhanced an existing mobile app for fish ordering; contributed to performance optimization, cross-platform adaptation, and cross-ecosystem deployment; developed and deployed Huawei (Android) and iOS versions; fixed bugs and redesigned features to boost stability; improved app size and memory footprint; collaborated with UI/UX teams to refine design and usability; worked in an Agile SCRUM environment with cross-functional teams; integrated push notifications for engagement.
Full Stack Developer at Full Stack IT Group
December 31, 2021 - December 31, 2021
Developed an e-commerce MERN stack platform enabling users to browse products, manage a shopping cart, and complete secure payments; implemented multi-platform deployment with App Store, Google Play, and App Gallery; integrated data from a product catalog, users, and order histories; implemented third-party payment gateways; collaborated with cross-functional teams; introduced real-time notifications using Push API; performed test-driven development with Jest; conducted unit testing to ensure reliability.
Software Engineer
January 1, 2021 - January 1, 2024
Developed and maintained mobile applications using React Native and NestJS; built RESTful APIs with efficient data handling, authentication, and role-based access control; engineered scalable backend using Node.js and Express; designed reusable React Native components; improved front-end experience and performance; organized deployment processes across platforms; mentored interns; participated in Agile SCRUM.
Full Stack Developer at REO TECH
January 1, 2021 - Present
Developed mobile and web solutions using React Native (Expo) for mobile apps and React.js/Node.js for web apps; built robust RESTful APIs with Express; implemented Redux Toolkit based state management; configured authentication and authorization using JWT; integrated Firebase Cloud Messaging; orchestrated multi-platform deployments to App Store/Play Store; collaborated with cross-functional teams; mentored interns; followed Agile SCRUM practices; ensured security and performance; unit tested with Jest.
Full Stack Developer at Creative DSM
January 1, 2020 - December 31, 2021
Developed cross-platform projects using React Native (Expo) for mobile and React.js/Node.js for web, including a Learning Management System (LMS). Designed scalable MongoDB schemas for catalogs, user profiles, orders, and inventory; integrated third-party payment gateways; built real-time features and location-based services; enabled app deployment to App Store, Play Store, and App Gallery; collaborated with UX/UI and sales teams; implemented push notifications; followed Agile SCRUM.

Education

Engineering Degree in Computer Science at TEK-UPP Private Engineering School
January 1, 2020 - January 1, 2023
Engineering Degree in Computer Science at TEK-UP Private Engineering School
January 1, 2020 - January 1, 2023
Bachelor Degree in Computer Networks at Higher Institute of Computer Science of Mahdia (ISIMA)
January 1, 2017 - January 1, 2020
Engineering Degree in Computer Science at TEK-UPP private Engineering School, Ariana, Tunisia
January 1, 2020 - January 1, 2023
Bachelor Degree in Computer Networks at ISIMA, Mahdia, Tunisia
January 1, 2017 - January 1, 2020

Qualifications

Add your qualifications or awards here.

Industry Experience

Software & Internet, Retail, Professional Services, Education, Computers & Electronics, Media & Entertainment