Diaa AbuSaada

Teach Lead|Head of Engineering

eCommerce - KSA

As the Head of Engineering, I led the development of the B2B eCommerce from specs to live within budget and according to the planned timeline.

• Designing the System to achieve modular scalable architecture, DB, Software, & infrastructure
• Hiring the right team and Conducting thorough technical interviews, in addition to mentoring and supporting the team
• Delivering the first and second versions of the app within budget & timeline with minimal issues 
• Identified risks that could impact project delivery, such as technical challenges, and resource constraints. And manage changes in requirements so they won't affect the delivery plan.
• Writing core modules code and conducting code-reviews to achieve a well-tested product that's easy to maintain with modular Node & PHP with a layered architect, and Automated testing.
• Designing secure & versioned RESTfull APIs to be consumed by the mobile apps
• Set up CI/CD pipelines on Gitlab to test and deploy poly repo microservice (PHP, Node) to reduce manual deployment and increase team productivity
• Planning out the project milestones, keeping track of our progress, and reporting to stakeholders.
• Working with Sales & Operation teams daily to ensure the adaptability of the system to both operations and customers

Skills:

Team leadership, Project management, Design Patterns, Service-Oriented Architecture (SOA), Redis, Shell-scripting, PHP, Laravel, NodeJS, Docker, SQL, PostgreSQL

Backend Engineer/Service Owner

Fintech - Dubai, UAE

As a service owner for a service-oriented Fintech platform, I was responsible for designing and developing new features in collaboration with the product and QA teams. I provided support across various areas, including system design, software development, support, and documentation. I ensured that all these aspects were completed within the designated timeline.

• Implementing TDD and DD to develop highly efficient and reliable software systems.
• Utilizing Microservices architecture with NestJs/protocol buffers/event-driven programming to improve scalability and performance.
• Designing and documenting new features to ensure clarity and maintainability using Stoplight for API doc, Sequence Diagrams, Notation, etc.
• Writing robust, maintainable, secure code, and optimizing performance.
• Conducting code reviews and collaborating with team members to identify areas for improvement and ensuring code quality.

Technologies used:

· NestJS · Typescript ·Javascript ·Docker ·PostgreSQL ·gRPC ·Proto ·Design Patterns · Service-Oriented Architecture (SOA) · Node.js · Microservices . RabbitMQ .CQRS/Saga

Lead Software Engineer

Istanbul, Turkey

• Leading the development/upgrade of Saudi Electronic University - Admission Portal by refactoring legacy code into a modern, maintainable codebase. This includes isolating tightly coupled code to a layered and loosely coupled structure.
• Writing clean, robust, and easy-to-maintain code for core and critical features/modules.
• Performing code reviews for my team of 5.
• Actively supporting and mentoring members of the development team.
• Creating event-driven architecture and implementing message queue technology.
• Writing testable and maintainable code using SOLID principles and TDD.
• Investigating, analyzing, and documenting reported defects.
• Following Scrum/Agile methodology to manage sprints and deliveries.
• Creating, documenting, implementing, and managing unit tests and scripts.

Technologies used:

· PHP · Laravel · Design Patterns · Unit Testing · Linux · Git ·TS/JS · Docker-Compose · Docker · MongoDB · PostgreSQL

Lead Software Engineer

- Gathering requirements and functional specs then creating a technical roadmap that shows how the software will cover business needs. - Developing technical designs & estimates to meet the business needs. - Solving complex problems and debug & troubleshoot. - Providing Deployment & production support - Acting as project manager on team projects. - Deploying applications to production environments.

Technologies used:

PHP, Laravel, JS, SQL, GIT, Linux, AWS Cloud, Magento2CE, ElasticSearch, AWS CLI, Algolia, TDD / Unit Testing

Senior Backend(PHP) Engineer

- Gathering requirements and functional specs then creating a technical roadmap that shows how the software will cover business needs. - Developing technical designs & estimates to meet the business needs. - Solving complex problems and debug & troubleshoot. - Providing Deployment & production support - Acting as project manager on team projects. - Deploying applications to production environments.

Technologies used:

PHP, Laravel, JS, SQL, GIT, Linux, AWS Cloud, Magento2CE, ElasticSearch, AWS CLI, Algolia, TDD / Unit Testing

Jr. Web Developer

Responsible for developing many web and mobile projects using Java, PHP as a part of development team

Technologies used:

PHP, Yii, JS, SQL, SVN

Altınbaş University

Saudi Electronic University - Admission Portal

• Admission Portal that facilitates admissions for 100k+ student applications each year.
• Role: Technical Team Lead.
• Made a software design that supports an extendable acceptance flow, allowing any new changes in the admission and acceptance process to be implemented by extending the system rather than changing stable code.
• Breaking specifications into backlog and sprints, and conducting code reviews.
• Writing clean, robust, and maintainable code.
• Writing unit tests.

PHP8.1 , Laravel, Docker, JS, Linux, SQL/Oracle, PHPUnit, Redis, GIT

Saudi Electronic University - Exams Portal

• Exams Portal responsible for distributing and tracking exam sessions for thousands of students in the SEU.
• Wrote an efficient algorithm to distribute all the exam sessions for thousands of students with 100+ proctors, taking into consideration minimizing the number of needed rooms, required sessions, student gender, and minimizing proctors' attendance days. Additionally, ensured the code was clean, readable, and maintainable.
• Role: Lead ENgineer.
• Breaking specifications into backlog and sprints.
• Code Review.
• Writing clean, robust, and maintainable code.
• Writing unit tests.

PHP8.1 , Laravel, Docker, JS, Linux, SQL/Oracle, PHPUnit, Redis, GIT

BaytAlebaa E-Invoicing System (2021)

Leading a web application development to integrate many invoicing-systems (Microsoft Dynamics GP) to a multi-tenant Laravel application to archive and generate E-Invoices based on ZATCA standards for one of the biggest Enterprises in Saudi Arabia - Laravel8, Multi-tenancy, MariaDB, Unit-Testing, AWS EC2, SQL Server