BPO Collections Ltd
Sept 2025 - Present
Full Stack DeveloperContract
4→1 screen payment flow
Reduced a four-screen payment flow to a single interaction and led the platform's migration from legacy ASP.NET to typed Next.js.
- Reduced a four-screen payment flow to a single interaction with no loss of compliance coverage.
- Integrated the Fiserv gateway end to end across card processing, tokenisation and digital wallets, secured with an HMAC-SHA256 authentication layer.
- Built store-ID routing for multi-merchant transactions and integrated 3D Secure into the payment path.
- Consolidated Open Banking, Direct Debit and bank validation into a single flow.