h
hajirabibi

Jaffar A

@hajirabibi

Software Engineer

Pakistan
English, Urdu
About me
I am a Software Engineer focused on building scalable and high-performance full-stack web applications using React, Angular, Node.js, and cloud-native technologies. I specialize in real-time communication systems, WebRTC, REST APIs, and distributed system architecture with a strong focus on performance and scalability.... Read more

Skills

h
hajirabibi
Jaffar A
Offline • 
Average response time: 1 hour

See my services

Custom Websites
I will develop a mern stack saas web app using react, angular and nodejs
From$100 / projectMore details
Addons & Customization
I will build realtime video calling and streaming apps with webrtc
From$110 / projectMore details

Portfolio

Work experience

Freelancing_Career

Full Stack Engineer

Freelancing Career • Full-time

May 2024 - Present • 2 yrs

Developed scalable full-stack web applications using Angular, React, Node.js, and Express with modular architecture. Built real-time communication systems using WebRTC, Socket.IO, and Redis, enabling video conferencing, chat, and collaboration features. Implemented secure authentication using JWT, role-based access control, and subscription billing integrations with Stripe, Firebase, and Twilio. Designed and documented RESTful APIs using Swagger and optimized database performance using Sequelize ORM and MariaDB. Deployed containerized applications using Docker and Nginx, improving scalability and production reliability. Worked in Agile Scrum teams to deliver high-quality features aligned with business goals and timelines.