Osama Radwan

Monty Mobile, Beirut, Lebanon

05/2021 - Present

Monty Mobile is a VAS & telecom solutions provider , working to facilitate the international flow of Voice and SMS across global markets.

Back-end Developer:

• Proficiently managed the entire project lifecycle, encompassing analysis, design, development, code review, and testing across various projects.
• Demonstrated expertise in implementing and maintaining multiple projects, collaborating closely with the Business Analysis team for both front-end and back-end solutions.
• Pioneered the development of an automated software application tailored for data manipulation. This application efficiently processes Excel sheets, performing data cleansing and modifications, and seamlessly populates a unified relational MySQL Database Schema.
• Engineered a user-centric web application, empowering users to intuitively search, retrieve, and transform data. This involved dynamic category selection and advanced filtering capabilities.
• Devised a proprietary algorithm to dynamically generate MySQL queries, significantly enhancing database query efficiency for optimized performance.
• Innovated a dynamic data processing pipeline, enabling users to upload CSV files for data enrichment. This server-side solution utilized regex for data cleansing and modification, ensuring data accuracy and integrity. The processed and enriched data is provided in a downloadable CSV format, ideal for managing large datasets.
• Led the development of a robust web application featuring advanced data management functionalities. This included a daily automated data synchronization process from an external API endpoint, ensuring the most up-to-date data in the database.
• Implemented a seamless cron job scheduler to autonomously download data files from the external API, resulting in real-time database updates.
• Engineered an on-demand data synchronization feature, granting users the ability to trigger immediate database updates for timely access to the latest information.
• Spearheaded the integration of industry-standard JWT (JSON Web Token) authentication and authorization mechanisms, complemented by custom middleware for enhanced user authentication.
• Designed and executed a comprehensive error handling system and established rigorous input and type validation procedures, bolstering the application's reliability and security.

Skills: JavaScript, NodeJS, ExpressJS, Angular, Web APIs, Python, PHP, GIT, Github, MySQL, PostgreSQL, DataGrip

Data Analyst:

• Proficiently utilized automated tools to extract valuable data from diverse sources, seamlessly integrating it into our robust database infrastructure.
• Demonstrated expertise in the development and ongoing maintenance of databases and data systems, ensuring data is organized in a user-friendly and easily accessible format.
• Spearheaded data quality assurance efforts, identifying and removing corrupted data, and diligently updating the database with the most recent information as it becomes available.
• Delivered timely and accurate data to relevant departments, fostering efficient decision-making processes and supporting organizational objectives.

Skills: Python, Javascript, MySQL, Web APIs, DataGrip, Excel

MMServices, Saida, Lebanon

08/2018 - 04/2021

An Android application for mobile store dealers in the Lebanese market which sells mobile recharge cards, units, and online gift cards.

• Worked the implementation of a backend server responsible for orchestrating operations, including the transfer of Touch and Alfa units, validity days, and the sale of prepaid Touch and Alfa cards through a mobile application.
• Worked on the development of an Android mobile application designed to provide users with up-to-date pricing information for smartphones and gadgets available in the Lebanese market facilitating user experience by integrating WhatsApp to place orders.
• Worked on the implementation of a affiliate marketing web application that showcased deals from a variety of online stores, including AliExpress. The user-friendly platform allowed users to browse and place orders by redirecting them to their desired online store, enhancing shopping experience.

Skills: Flutter, Dart, Javascript, PHP, Slim Framework, Web APIs, MySQL, GIT, Github

Lebanon Field Office - UNRWA, Beirut, Lebanon

09/2019 - 03/2020

United Nations Relief and Works Agency for Palestine Refugees in the Near East

• Contributed to the development of a web application dedicated to managing flight and hotel reservations exclusively for UNRWA staff. Leveraged ASP.NET with Entity Framework for robust functionality.
• Played a pivotal role in quality assurance efforts for the E-Health web application, a critical tool utilized by the Health Department to ensure the highest standards of performance and reliability.

Skills: ASP.NET Core, C#, Web APIs, Entity Framework, MySQL, Javascript

SE Factory, Beirut, Lebanon

05/2018 - 10/2018

Intensive full stack web development program covering cloud architecture, front and back-end development, source control, and web application security.

• Ran through programming fundamentals including Data Structures, Algorithms, Programming Language Concepts, Version Control, Object-Oriented Programming, Database Management Systems, MVC Design Patterns, Dependency Management, modern Web Frameworks, and AWS.
• Learned non-technical soft skills including Communication & Interpersonal Skills, Time Management, Creative Thinking, Team Work, Conflict Resolution, Technical Presentations, Business Etiquette, Project Management, Leadership, Professional Writing, Negotiation, and Interviewing.
• Developed knowledge in back-end web development by working on small projects using Laravel (PHP).

Lebanon Field Office - UNRWA, Beirut, Lebanon

12/2017 - 05/2018

United Nations Relief and Works Agency for Palestine Refugees in the Near East

• Gained expertise in back-end web development, specializing in PHP, MySQL, and Apache technologies. Contributed to the creation of robust and dynamic web applications that seamlessly handle data and user interactions.
• Crafted responsive user interfaces, employing HTML5, CSS3, and Bootstrap ensuring optimal user experience and usability across various devices.