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My services include:
Designing RESTful/gRPC APIs
Building ISO 8583 payment switch integrations (Visa, Mastercard, Amex)
Serverless functions using AWS Lambda
Database integration (MongoDB, MySQL, PostgreSQL)
Secure authentication (JWT, OAuth)
I follow best practices for clean, testable, and production-ready code. Whether you need help with a new backend service, payment gateway, or cloud deployment — I’m here to help!