Senior Backend / API Engineer
PHP (Laravel) • Python (FastAPI) • MySQL Performance • AWS • Payments (Stripe/PayPal)
Building scalable CRM/ERP platforms, REST APIs, and microservices with clean architecture and optimized databases.
I'm Clarence Martinez,
Senior Backend / API Engineer with 15+ years building scalable CRM/ERP platforms, data-heavy systems, and REST APIs using PHP (Laravel), Python (FastAPI), and MySQL. I specialize in API architecture, SQL performance optimization, and backend integrations including Stripe/PayPal.
Recently, I’ve been building Python microservices with FastAPI + Swagger/OpenAPI to support modular, production-ready systems. Based in West Valley City, Utah, open to US-remote, hybrid, or onsite opportunities.
Selected work focused on real business problems, using Laravel, Flutter, Python and modern web technologies.
Laravel · MySQL · Bootstrap · PDF Generator
Platform for U.S. tax professionals to collect client data and automatically generate IRS forms 433-A, 433-B, 2848 and 8821. Includes client intake, case workflows and printable PDFs.
Laravel · MySQL · Geolocation · Scheduling
Attendance and scheduling platform with geofencing. Supports multiple companies, branches with radius, user roles and weekly schedules for field staff with geofence notifications.
Laravel · MySQL · Multi-company · Reporting
Illayrun Intranet is a **multi-company, multi-branch transportation management system** built with **Laravel 11** and **PHP 8.3**
If you’d like to collaborate or hire me, feel free to reach out: