-Building, developing, and deploying services. -Participating in planning, design, and technical meetings -Building complicated features like 2FA -Responsible for complicated calculations and features related to the business core -Contributing to diagram big features I'm assigned to a user story of two factors auth feature, we didn't have such a feature before in the current system. I made my own search on how big companies deal with this critical feature as it's the first step for the user to login into our system, I've designed a system design diagram to show to the frontend/mobile team, technical discussion with the engineering manager then got the approval to implement it as I designed. I wrote a document for, unit test and code level. Now we have a working 2FA flow in our app.

-Responsible for teaching Software Engineer tools/languages Teaching topics like -GraphQL -Typescript -NodeJS -Linear algebra for machine learning

-Participated in planning, design, and technical meetings. -I built about 5 service from scratch they had about just 3 i left when they had 17+ microservices -Responsible for building, developing, and deploying microservices. - Design and develop microservice services -Onboarding new freshers and juniors -Transfer business requirements into user stories We had a big challenge to create a webhook in order to provide APIs to our vendor (vodafone). My task was to system design and implement that feature. I decided to look at already existing system designs for big companies' blogs ( e.g. Netflix ), and I made my own approach based on those designs. Finally, they had a webhook service that is responsible to handle all incoming requests from our vendors (e.g. vodafone)

-At Student activities, YouTube channel, ITEYE company, and technical article writer Developed Marketing tools -Web push notification -Developed Bird Tracking, a Beta game website -Developed Twitter bot, Facebook, and Telegram chatbots -Developed Citizens' complaints System -Web scraping task -Talks/videos/articles about advanced topics like OAuth2.0, Circuit Breaker, and so on.