Full Stack Developer

Experience

Senior Software Engineer / Cvent

Nov 2021 - Present

United States

• Developed and maintained microservices architecture for CVENT's Studio streaming platform to scale the Studio application, a streaming platform with 30K+ active users and 100+ users per meeting.

• Engineered high-through-out Typescript-based applications with micro-service architecture and implemented continuous integration to ensure rapid deployment, making the system faster by 20% to 4 teams of 20 developers.

• Created new NPM packages to speed up to 150% of the main application and reduce more than 10k lines of reused code.

• Developed and maintained a scalable microservices architecture, resulting in a 50% increase in system performance and the ability to handle a 300% increase in user traffic during peak periods.

• Engineered high-through-out Typescript-based applications with micro-service architecture and implemented continuous integration to ensure rapid deployment.

• Tec Stack: Micro-services, Typescript, NodeJS, Python, Django, React, Postgres, MongoDB, WebSocket, Datadog, Cache, Redis, Unit test ...

Technical Screener / Andela

Remote

Jan 2021 - Present

United States

• Screened 100’s of candidates for technical positions, evaluating their skills and experience in Java, Python, and C++.

• Conducted technical interviews, assessing candidates' knowledge of computer science concepts, such as data structures and algorithms, and their ability to solve problems.

• Trained other engineers on technical topics, such as software engineering best practices and agile development methodologies, using a variety of tools and resources.

• Contributed to the development of Andela's technical training curriculum, by providing feedback on the curriculum and developing new training materials.- Screened 100’s of candidates for technical positions, evaluating their skills and experience in Java, Python, and C++. 

Full Stack Engineer / PRODUCER - Maker Machina

Remote

Dec 2022 - May 2023

Zurich, Switzerland

• Developed Full Stack Solutions, Designed and implemented APIs.

• Integrate with payment platforms.

• Scale the application to handle more than 100k users around all regions. Hence worked with proxies and CDN to handle diff regions.

• Wrote 100’s unit tests to ensure the quality of my code.

• Part of Award-Winning Team: Played a key role in PRODUCER. Io’s achievement of winning a Microsoft prize. 

• Tec Stack: Typescript, Nest-JS, React, MongoDB, Stripe, AWS, Keycloak, Terraform, Openfga, Python

Senior Software Engineer / Column Inc

Jun 2021 - Jul 2022

United States

• Led backend development for Column's social networking platform, focusing on a scalable microservices architecture capable of supporting a rapidly growing user base, with particular attention to multi-tenancy and sharding strategies.

• Engineered robust back-end services using multiple programming languages, significantly enhancing system scalability to accommodate over 500K active users.

• Implemented Redis caching mechanisms and database sharding, resulting in a 60% improvement in application response times and handling 2x user traffic during peak periods.

• Pioneered a multi-tenant architecture, enabling efficient data management and personalized user experiences while maintaining high performance and security standards.

• Collaborated in a team of 15 engineers, contributing to the seamless integration of diverse services and features, ensuring the platform's adaptability and long-term sustainability.

• Tec Stack: NodeJS, Python, Stripe, Redis, AWS, MongoDB, Lua

Senior Software Engineer / Delivery Hero

Full-time

Sep 2021 - Mar 2022

Cairo, Egypt

• In Deliveryhero, they were trying to merge all the applications of Deliveryhero sub-companies into one.

• Worked with a couple of services, for food merchants. technologies were, micro-services, .net core, typescript, go-langIn 

Technical Lead / HedeDanmark a/s

Apr 2020 - Oct 2021

Denmark

• Led the development of HD-LogSystem, streamlining HedeDanmark's services into a single application used by over 10,000 clients for real-time tracking of sensor-based services.

• Engineered a multi-user platform supporting distinct login functionalities for various roles, enhancing user accessibility and system security for diverse client needs.

• Designed and implemented dynamic forms within the application, enabling users to customize properties according to their specific service requirements.

• Oversaw a team of developers in integrating multiple service modules, resulting in a 30% increase in operational efficiency and client satisfaction.

• Coordinated with stakeholders to convert service needs into technical solutions, ensuring the HD-LogSystem was robust, scalable, and met diverse client demands.

Senior Software Engineer / Crossworkers-Egypt

Full-time

Apr 2020 - Jan 2021

Denmark

Cross-workers is an offshore company, the main client I am working with is Hededanmark,

For the assigned clients by Cross-Workers, most of the time I do:

• Develop software solutions by studying information needs; conferring with users; studying systems flow, data usage, and work processes; investigating problem areas; following the software development lifecycle

• Document and demonstrate solutions by developing documentation, flowcharts, layouts, diagrams, charts, code comments, and clear code.

• Lead Back-End Implementation which is, Choosing the right architecture of data flow, Building up the schema of data.

• Lead Front-end By making sure the code is clean, the structure is good, and APIs are consumed the right way.

• Make informed decisions quickly and taking ownership of services and applications at scale

• Remain cool and effective in a crisis

Senior Software Engineer / 3D|Diagnostix

Jul 2018 - Apr 2020

Washington, United States

• Spearheaded the re-engineering of two web applications, one initially built in Java and the other in PHP, transitioning them to a modern technology stack centered around NodeJS. This involved redesigning the database schema and integrating a microservices architecture.

• Successfully enhanced system performance and user experience by restructuring legacy applications, leading to a 25% improvement in application responsiveness and a 40% reduction in server load.

• Developed the Auto-Downloader, a sophisticated microservice designed to automate the secure download of patient files. Implemented advanced protocols beyond HTTP to ensure data security and integrity.

• Incorporated features like real-time file speed/upload monitoring, queue management, and socket programming, coupled with Redis for efficient data handling and service management.

• Played a critical role in upgrading the company's software infrastructure, significantly improving operational efficiency and data security, directly impacting patient care and clinical outcomes.

• Tech Stack: NodeJS, Java, PHP, Redis, Stream, Process/threads, WebSocket, FTP, Queue, RabbitMQ, Lua, Redis, Concurrency, Jobs, Bull-JS...

Software Engineer / Informatique

Jan 2018 - Jul 2018

Egypt, kuwait, Qatar, Bhrain

Informatique Education offers solutions that enrich the educational experience

• Working in agile/scrum methodology to re-engineer the educational system, and also building different services to achieve integration with the main system.

• By building windows services, Create API's, Consume API's

• Creating Procedures and tables in the database.

• Refactoring Code.

• Enhance Sql Queries performance.

• Integrating with Open Source Modules.

• Developing Web API.

• Technologies stack: .Net core, Node, Socket.io, Jquery, Javascript, SQL-Server

Back End Developer / Appsinnovate

Jan 2017 - Dec 2017

Cairo Governorate, Egypt

Appsinnovate is a software development and services company with both local and international global clients that provide a range of products/solutions and matches the needs of various sectors and industries. It provides turnkey products and services through 

3 business units:

1. Mobile Applications.

2. Games Development.

3. Customer Engagement Solutions

My responsibilities:

• Responsible for managing the interchange of data between the server and the users.

• Responsible for developing all server-side logic, definition, and maintenance of the central database, and ensuring high performance and responsiveness to requests from the front-end.

• Responsible for integrating the front-end elements built by my coworkers into the application.

• Responsible for building reusable code and libraries for future use.

• Responsible for optimizing the application for maximum speed and scalability.

• Responsible for Implementing security and data protection.

• Responsible for designing and implementing data storage solutions.