u
umar_sultan

Umar Sultan

@umar_sultan

Experienced MERN Stack Developer with TypeScript and MySQL Expertise

Pakistan
Inglese, Urdu
Alcune informazioni sono riportate in lingua inglese.
Chi sono
I’m a Full Stack Developer with 3+ years of experience building scalable and high-performance web applications. I specialize in React (TypeScript), Node.js (Express), MongoDB, and MySQL. I also have hands-on experience with Prisma ORM, Redis caching, cron jobs, and secure payment API integrations. I build full stack apps, REST APIs, dashboards, and custom solutions with clean, maintainable code. I focus on performance, security, and delivering reliable, production-ready systems tailored to your needs.... Continua a leggere

Competenze

u
umar_sultan
Umar Sultan
offline • 

Consulta i miei servizi

Siti web personalizzati
I will develop web applications using react, node, mysql and mongodb
A partire da80 USD / progettoMaggiori dettagli

Esperienza lavorativa

Senior Full Stack developer

Qecosystem • Full time

Feb 2023 - Feb 2026 • 3 yrs

I engineered and maintained scalable backend systems using Node.js (Express) and MySQL for high-performance applications. I worked on a payment integrator product, PayAbhi.com, where I designed and implemented end-to-end payment workflows, including invoice generation, payment processing, and third-party integrations. I developed settlement systems and commission calculation logic for accurate financial reporting, and built secure checkout flows to enhance user experience and success rates. I optimized performance using Redis caching, Prisma ORM, and Node Cache, and created reporting modules for financial insights. I implemented RBAC, integrated payment gateways, built RESTful APIs, and applied strong security practices including JWT authentication and data protection, delivering reliable and production-ready solutions.