Developed and maintained an e-commerce platform integrated with bank POS systems using JavaScript, HTML, and CSS. Designed and managed MySQL databases, implemented API integrations, and optimized system performance. Built backend services in PHP (Laravel) to automate user credit management through cron jobs, handling session validation and balance control.

Senior Backend Developer at BrightBack

January 1, 2021 - December 31, 2024

Remote backend development focusing on RESTful APIs for authentication, subscription, and billing workflows; integrated payment gateways; built UI components with React/TypeScript; managed membership and authentication modules.

Software Engineer at DigitalWisers

January 1, 2024 - December 31, 2024

Designed and implemented a subscription management module for SaaS; developed REST APIs in Node.js for authentication, subscription, and billing; integrated Iy zico for secure payments; built responsive UIs with React/TypeScript; deployed on AWS EC2; collaborated with cross-functional teams; set up microservice architecture with Docker; utilized Postgres and MongoDB.

Senior Backend Developer at Gene & Gene – Sports Genetics Platform

January 1, 2025 - Present

Built a full-stack platform using Node.js, Next.js, and TypeScript hosted on AWS EC2; implemented REST APIs; integrated AI features; introduced automated PDF generation pipeline with Puppeteer; set up authentication, authorization, and billing workflows.