- Implemented a streamlined kubernetes setup for automated deployment of APIs across all environments, reducing deployment times and simplifying version control while standardizing infrastructure.-Crafted a secure and user-friendly authentication API with intuitive endpoints for login, sign-up, logout, and API key management. Integrated advanced rate-limiting functionality for enhanced security and to deter unauthorized access for reuse in the microservice.- Designed and implemented a payment processing system that securely manages transactions and facilitates real-time payments between users.- Integrated with multiple payment providers such as Ipay and Interswitch to provide a seamless payment experience for users.- Developed features to support payment authorization and settlement workflows, including chargebacks, refunds, and payment disputes.- Built integrations with accounting software such as QuickBooks and Xero to enable automated accounting workflows and reconciliation.- Developed and maintained APIs for payment-related functionality, ensuring consistency and reliability across all services.