MYPAY

› Overview

A consumer e-wallet for Malaysia — send money, pay merchants, top up, the standard set. Built at Codelynx with a focus on transaction safety and a calm user experience.

› The problem

Payment products live and die by their edge cases. The brief was clear: build the transaction and auth modules so reliably that the customer-success team would have nothing to do.

› What I built

• ·Owned the transaction module: queued retries, idempotency keys, optimistic UI rollback on failure.
• ·Built the auth module: PIN, biometrics, device binding, recovery flows.
• ·Wrote Terraform for the backend infra to keep the deploys predictable.
• ·Integrated KYC and the local payment rails through the partner SDK.

› Outcomes

• Zero
  Critical incidents in the launch quarter
• Hours
  Average debug-to-fix turnaround during launch

› Stack