Isaias David C.

PHP and Laravel developer, also strong in Node.js and React, for existing products: I find the real cause of bugs and slow pages, and fix them without breaking anything else. I work with AI tools like Claude Code for speed and review every critical change by hand. Available full-time (30-40 hrs/week) or contract-to-hire: a steady developer who learns your codebase once and keeps it healthy, instead of onboarding someone new every month. What I can do for you: - Fix bugs and errors in Laravel, PHP and WordPress/WooCommerce apps - Speed up slow pages, heavy database queries (MySQL, PostgreSQL) and server setups (Linux, Nginx, Apache) - Find and close security and permission issues that are easy to miss - Build new features with Node.js, TypeScript, React, Next.js and React Native - Integrate payments and APIs: Stripe, Klarna, QR payments, Firebase, Supabase, WhatsApp Business, OpenAI/Claude Real results: - A US client has kept me on his platform for 375+ hours and keeps coming back with new work. - Found and fixed a hidden data leak between user roles in a client portal with Stripe and Klarna billing. The interface looked fine; direct calls to the Firebase API did not. - Built a subscription platform with monthly plans and a free tier, end to end. - Integrated QR payments with a bank API for a driver app. How I work: - I read the logs and find the root cause, not just the symptom. - Small, safe changes, with a clear explanation of what changed and why. - Daily written updates, so you always know where things stand. - UTC-4, with good overlap with US business hours. - Written communication in English or Spanish; calls in Spanish (native). Send me your repo or site and a short description of the problem. I’ll tell you what I’d check first.