Hamza Faidi

• Investigated and prepared the integration architecture for Ockto API and Salesforce CRM, focusing on reliable
logging, traceability, and alerting for production operations.

Paris, France)
• Delivered an automation feature to suspend/resume Mastercard corporate cards, replacing a manual support
workflow and improving availability for 1, 000+ corporate users.
• Built the end-to-end workflow: UI (Angular), backend APIs (ASP.NET Core), orchestration (Azure Logic
Apps), and background processing via queues with retries/backoff.
• Improved security posture by centralizing secrets in Azure Key Vault and enforcing safer operational practices
for card lifecycle actions.
• Tech: ASP.NET Core, Angular, REST APIs; Azure Logic Apps, Queue Storage, Key Vault; CI/CD; operational
support.

• Taught programming fundamentals across 4 classes (~80 students); delivered hands-on labs on pointers, memory
management, and OOP; ran weekly debugging/problem-solving clinics.
• Topics: C, C++, OOP, data structures, debugging, teaching & facilitation.

• Built an LLM-assisted fraud detection workflow for Mastercard transactions (backend in .NET, review UI in
Angular); improved detection quality and helped recover 3, 000+ in fraudulent charges during rollout.
• Designed and owned the Mastercard card renewal flow using banking APIs and scheduled processing (queues +
orchestrated jobs); prevented 100+ cards from expiring by ensuring safe retries and operational visibility.
• Refactored webhook processing toward provider-agnostic payments (Swan/Adyen) using clear boundaries and
patterns; reduced provider-specific code and improved change safety.
• Implemented an idempotent, retryable event pipeline for payment-provider webhooks, improving reliability
and reducing duplicate processing in production.
• Contributed to a migration toward DDD with careful database changes: wrote safe SQL migration scripts,
improved logging/monitoring, and supported a low-risk rollout.
• Tech: C#, ASP.NET Core, Web API, SQL Server; Azure (App Service, Key Vault, Application Insights, Logic
Apps, Queue Storage); CI/CD (Azure DevOps); Terraform.