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Hazim Attia

@hazimattia

Senior Backend Engineer at Sure Global Tech who built a Meta WhatsApp Business API integration portal with .NET Core and RabbitMQ.

Egypt

Message

At Sure Global Tech, I designed and built a Meta WhatsApp Business API integration portal using .NET Core on IIS. I implemented RabbitMQ messaging between internal microservices and Meta’s Cloud API to support asynchronous message processing.

Previously, I developed serverless REST APIs for logistics systems at Transflo using .NET Core and AWS Lambda, and integrated Cognito and SNS. Across my roles, I’ve worked on backend microservices, SQL Server performance, and applications including an Egyptian e-invoicing system integrated with national tax authority APIs.

Experience

Work history, roles, and key accomplishments

Current

Senior Software Engineer

Current

Sure Global Tech

Mar 2025 - Present (1 year 7 months)

Designed and built a Meta WhatsApp Business API integration portal using .NET Core on IIS, implementing asynchronous message processing with RabbitMQ and optimizing API request handling for high-volume messaging channels.

.NET Core RabbitMQ IIS WhatsApp Business API Asynchronous Processing API Optimization

Software Engineer

Transflo

Apr 2023 - Oct 2024 (1 year 6 months)

Developed serverless RESTful Web APIs using .NET Core and AWS Lambda for enterprise logistics management systems, designed SQL Server schemas, and integrated AWS Cognito and SNS for authentication and event notifications.

.NET Core AWS Lambda SQL Server Entity Framework Core Amazon Cognito AWS SNS RESTful API Design

Software Engineer

Azentio

May 2022 - Apr 2023 (11 months)

Built modular backend microservices using .NET Core with Clean Architecture, and implemented database access layers with EF Core to enforce transactional consistency and data integrity.

.NET Core Microservices Clean Architecture Entity Framework Core Database Design

Software Engineer

Shadi Systems

Dec 2020 - Apr 2022 (1 year 4 months)

Developed enterprise web applications for healthcare and commercial management using ASP.NET Core MVC, and refactored legacy database queries to reduce API execution latency.

ASP.NET Core MVC Entity Framework Core SQL Server Query Optimization Refactoring