Apr 2023 – Mar 2024 · 11 mos

• Integrated multiple BNPL providers such as Tabby ( UAE/KSA), Valu (Egypt) in
• the payment’s architecture, actively contributed in the low-level and high-level design of the functionality, documenting the entire flow, conducting code-reviews and cross-team integration and deployment of the feature.
• Improving the observability of the system by introducing dashboards and generating alerts to identify anomalous behavior and assist in root cause analysis.

Jun 2021 – Mar 2023 · 1 yr 9 mos

• Worked as a member of Carrefour's Payments Team, where my responsibilities included code development, design and documentation, code-review, system monitoring, and bug resolution.
• Designed and developed the Gift-Card Service, which is an event-driven service that assists with instant redemption of physical gift card funds into the customer’s wallet. Delivered the feature with end-to-end ownership, including technical-spike, documentation, design and development, cross-team integration, and production deployment.
• Contributed to the development of the multi-mode payment system, which enables multiple sub-transactions for a single order using different methods of payment. Integrated this architecture with the order management process and incorporated payment methods including credit cards and ApplePay.
• Developed a microservice from scratch to store the data of multiple payment instruments used by users, including wallet account information, card tokens issued by payment gateways, etc.

Jan 2021 – May 2021 · 4 mos