- Analyzed new requirements and made the design for them to work with the existing architecture. - Implemented and maintained web application + Developing servers where all the needed APIs for the web application to use. + Creating/developing services to regularly get data from third-party services, then process them and store the processed data as reports for clients. + Maintaining service to monitor all the notifications, alerts and incidents and handle them following the requirements. - Maintained/created CloudFormation templates to manage the AWS infrastructure for the application. - Helped to manage new features and bug fixes for each release for faster delivering. - Monitored and worked on any defects found on any environments. - Reviewed pull requests. - Wrote documentations to make everything crystal clear and for better maintenance in the future.

- Contributed opinions on the designs for new features and re-designs to refactor old features. - Implemented and maintained web application using ReactJS. - Used NodeJS and PostgreSQL for: + Exposing APIs for the web application to use. + Creating cron jobs to schedule tasks. + Integrating cryptocurrencies into the web application using their relevant libraries such as MATIC, XDC, etc. For these cryptocurrencies to become compatible with the application. + Developing staking feature for ADA (from Cardano blockchain), so users can stake/un-stake their tokens whenever they want using the application. + Developing a web-hook to monitor suspended addresses across blockchains for better security. - Helped to manage new features and bug fixes for each release for faster delivering. - Reviewed pull requests. - Wrote documentations.

- Developed an application that spawns configurable bots when needed for them to play with real users in the company's games.

A web application for bus operating company. The application allows users to manage their employees, vehicles, trips, etc