Romostomosn

Lead AI Developer

Aug 2026 - Present • 1 mo

Build custom AI chatbots and agents using LangChain, GPT, and Python. Integrate Stripe, PayPal, and Webhooks for SaaS and eCommerce clients. Full-stack development with React, Next.js, and Node.js. Deliver production-grade solutions with full source code ownership.

Payment Gateway & Backend Developer

Aug 2026 - Present • 1 mo

As a freelance Backend Developer, I help businesses build, integrate, and maintain secure backend systems for websites and web applications. My expertise includes custom API development and integration, Stripe and PayPal payment gateway integration, REST APIs, webhook implementation, WordPress backend development, bug fixing, workflow automation, and third-party service integration. I work with startups, SaaS companies, eCommerce businesses, and agencies to deliver reliable, scalable, and well-documented solutions. I focus on clean code, secure implementations, effective communication, and on-time project delivery while providing ongoing technical support when needed. Backend Development API Integration Stripe API PayPal API Payment Gateways Webhooks WordPress Development REST API PHP JavaScript Automation Debugging Security

API Integration & Backend Developer

Jul 2026 - Present • 2 mos

As an API Integration and Backend Developer, I design, develop, and maintain secure, scalable backend solutions for businesses, startups, and entrepreneurs. My expertise includes REST API development, third-party API integration, Stripe and payment gateway setup, webhook implementation, WordPress bug fixing, database management, and workflow automation. I have helped clients connect applications, automate business processes, improve website performance, resolve backend issues, and build reliable systems that support business growth. I focus on writing clean, maintainable code, delivering projects on time, and providing clear communication throughout every stage of development to ensure high-quality results and client satisfaction.