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Tanzil.Islam Senior Laravel & MySQL Dev
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PayMatrix Financial API Gateway

PayMatrix Financial API Gateway

High-throughput microservice API engine handling financial transactions with rate limiting and idempotency.

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Project Overview

A resilient RESTful API backend handling sensitive monetary transactions and ledger tracking. Equipped with Sanctum token authentication, Redis request rate limiting, webhook dispatching with automatic retries, and comprehensive OpenAPI / Swagger specs.

Key Engineering Features

Sub-40ms response times for high-volume transactions
Idempotent transaction keys preventing duplicate charges
Encrypted ledger storage with strict MySQL ACID compliance
Automated webhook delivery with exponential backoff retries
Interactive Swagger UI documentation

Tech Stack Used

PHP 8.2 Laravel 11 MySQL Redis Swagger/OpenAPI Docker

Lead Engineer

TI
Tanzil Islam
Full-Stack Laravel Engineer
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