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Ramzi Haddad

@ramzihaddad

Backend .NET Developer at SolutionSphere IT, building ASP.NET Core APIs and automating deployments for production SaaS applications.

Canada

Message

At SolutionSphere IT, I develop and maintain ASP.NET Core backend services and REST APIs, automate deployments, and implement logging and monitoring. I also use AI-assisted workflows to speed up debugging and delivery.

At Visual Touch POS, I maintained backend systems supporting about 800 concurrent users and 40,000 total users. I resolved a recurring memory leak that caused production crashes and implemented concurrency controls to prevent overbooking and data inconsistencies.

I designed and built an independent marketplace platform with listings, offers, messaging, and trust systems. It includes Flutter apps for iOS and Android, geo-based discovery using MongoDB, and REST APIs for marketplace workflows.

Experience

Work history, roles, and key accomplishments

Current

Senior Web Application Developer

Current

SolutionSphere IT

May 2024 - Present (2 years 5 months)

Develop and maintain backend services and REST APIs using ASP.NET Core. Automate deployments and operational workflows, implement logging and monitoring, and leverage AI-assisted workflows to accelerate debugging and delivery.

ASP.NET Core REST APIs CI CD Logging Monitoring AI assisted Development

Full Stack Developer

Visual Touch POS

Feb 2022 - Apr 2024 (2 years 2 months)

Maintained and optimized backend systems supporting ~800 concurrent users and ~40,000 total users. Diagnosed and resolved a recurring memory leak, designed concurrency control mechanisms, improved database performance, and built automation tools for deployments.