Hello, I'm
Muhammad Hasaan Sultan
Senior Full-Stack Developer
Building scalable, high-performance SaaS products with React.js, Svelte.js, TypeScript & Node.js — open to remote roles.
01 · About
Senior Full-Stack Developer with 7+ years of experience designing and building scalable, high-performance SaaS applications across the full stack, using React.js, Svelte.js, TypeScript, Node.js, and ASP.NET Core. Strong expertise in component-based architecture, state management, REST API design and integration, relational and NoSQL databases, and cloud infrastructure (AWS). Proven track record leading front-end teams, mentoring engineers, and delivering accessible, AI-powered products in Agile, distributed/remote-first environments.
- Location
- Pakistan · Remote-ready · Flexible with US/EU hours
- hasaansultan0@gmail.com
- Phone
- +92-310-1528766
- Availability
- Open to full-time remote roles
02 · Skills
Languages & Frameworks
Front-End
Backend & APIs
Databases
Cloud & DevOps
03 · Experience
PackageX Inc
Senior Front-End Developer
Jun 2022 – Present
Islamabad, Pakistan
- Designed and implemented responsive web interfaces using React.js, Svelte.js, Tailwind CSS, Ant Design, and Material UI.
- Engineered a customer engagement platform that improved user satisfaction scores by 25% and reduced support queries.
- Led a UI overhaul of the Receive Dashboard, cutting new-user training time by 25% and increasing platform adoption.
- Implemented JWT-based authentication and led front-end architecture for a logistics operations dashboard.
VisionX Technologies
React.js Developer
Sep 2020 – Jun 2022
Islamabad, Pakistan
- Integrated Google AR SDK to render real-time 3D product models, enhancing the e-commerce shopping experience.
- Rebuilt and maintained a legacy mailroom dashboard, shipping new features and providing ongoing support.
- Built the company's marketing website with Gatsby and partnered on SEO improvements.
Inclusive UAE
React Developer
Mar 2020 – Sep 2020
Remote
- Led development of an accessible social platform that drove a 40% increase in engagement among users with disabilities.
- Translated Figma designs into responsive, reusable React components built to WCAG accessibility standards.
Whinstone (Pvt.) Ltd
Full-Stack Developer
Dec 2018 – Feb 2020
Islamabad, Pakistan
- Built full-stack CRM and assessment solutions using React, ASP.NET Core, and MS SQL.
- Owned the full development lifecycle: architecture, design, debugging, testing, deployment, and version control.
04 · Projects
PackageX Receive
Enterprise last-mile delivery / digital mailroom platform with a multi-channel notification editor (email, WhatsApp, SMS).
AI-Powered Content Automation Tool
Automation tool integrating the Claude API (Anthropic) with third-party APIs to parse content, extract themes, and generate context-aware text — end-to-end LLM integration and prompt engineering.
PackageX Platform
Logistics and supply chain management platform covering inventory, fulfillment, and shipping modules.
ImInclusive Social Platform
Digital inclusion hub for the MENA region connecting people with disabilities to local jobs and opportunities.
Vista EPA
Online exam and certification platform built for UK-based clients.
Tailwind Tesla Landing
Pixel-crafted Tesla-inspired landing page built to practice advanced Tailwind CSS layout techniques.
05 · Contact
Let's work together
Open to remote Senior Full-Stack / Front-End roles and freelance projects. Send a message and I'll get back to you as soon as possible.
Email: hasaansultan0@gmail.com
Phone / WhatsApp: +92-310-1528766
LinkedIn: View profile ↗
GitHub: @HasaanSultan ↗