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Digital Wallet System & Integration Web API

High-throughput digital wallet infrastructure supporting merchant payments, wallet-to-wallet transfers, and multi-provider payment settlements.

Technologies & Architectural Stack
C#.NETASP.NET MVCSQL ServerjQueryHTML/CSSADO.NET

Overview & Scope

Developed and integrated web applications and Web APIs for digital wallet operations. Led a team of junior engineers and interns to successfully deliver robust payment endpoints and transaction settlement modules.

The Engineering Problem

Intermittent mobile connectivity frequently caused incomplete checkout sessions and risk of duplicate charge debits.

The Architectural Solution

Engineered idempotent payment endpoints, asynchronous reconciliation jobs in ASP.NET MVC and C#, and optimized database transactions on SQL Server ensuring 100% financial consistency.

Digital Wallet System & Integration Web API | Paras Maharjan