Hello,
I am Hasnain,
Senior Full-Stack Engineer
I build SaaS platforms, AI-integrated products, and mobile apps with React, Next.js, and React Native.
author
01. <about me>
I'm a Senior Full-Stack Engineer with 6+ years of experience shipping SaaS platforms, AI-integrated products, and mobile apps for US, UK, and enterprise clients.

I specialize in React and Next.js frontends, NestJS and Node.js backends, and React Native for mobile — building applications that are performant, maintainable, and accessible.

Recently at UX Pilot AI, shipping AI-powered design tooling. At HetraByte, I built Adacta.ai and Pendfunds from scratch. At MobileLive, I improved Staples' e-commerce SEO by 40% and conversions by 30%. At GudangAda, I was promoted to Team Lead while driving a 40% increase in client adoption.

Clean code. Fast delivery. Measurable impact.
40%
SEO improvement
30%
Conversion boost
2x
Faster exports
70%
Fewer post-release bugs
02. <experience>
UX Pilot AI
Senior JavaScript Developer
Jul 2025 – Present
  • Enhanced Figma-to-HTML export reliability by 40% and sped up exports by 2x through pipeline optimizations.
  • Drove 50% more React prototype usage by shipping the HTML-to-React pipeline and React Focus Mode.
  • Improved designer workflow efficiency by 35% with a unified editing workspace replacing tool switching.
HetraByte
Lead Engineer
Apr 2023 – Jul 2025
  • Built and launched Pendfunds.com, Vulkan Solutions, and Adacta.ai from scratch using React, Next.js, Strapi, and NestJS.
  • Integrated AI features into Adacta.ai, contributing to a 15% increase in product growth.
  • Led technical strategy, client communication, and delivery for US and UK-based clients.
MobileLive
Senior Software Engineer
Feb 2024 – Dec 2024
  • Led feature development and performance optimization for Staples' eCommerce platform using React.js and Node.js.
  • Improved SEO by 40% and boosted conversion rates by 30% through accessibility upgrades and UX improvements.
  • Delivered major Apple landing pages 25% faster than planned with seamless Contentful CMS integration.
GudangAda
Software Engineer → Team Lead
Mar 2021 – Dec 2022
  • Architected and maintained a large-scale SaaS application using Next.js, TypeScript, and a monorepo approach.
  • Led modules for Authentication, Employee Access, and Reporting, driving a 40% increase in client adoption.
  • Established CI/CD pipelines for automated testing, reducing post-release bugs by 70%.
Zepto Systems
React Native Developer
Aug 2020 – Mar 2021
  • Revamped the Seerene NGO platform and developed RightCRM from scratch.
  • Specialized in video processing solutions for mobile apps using react-native-ffmpeg.
  • Expanded Zepto's software portfolio with production-ready mobile applications.
YSTL
React Native Developer
Jan 2020 – Aug 2020
  • Led frontend and backend development for CircleIt and LetsRead projects.
  • Integrated Google Analytics to drive data-informed UX improvements.
  • Delivered cross-platform mobile features for scheduled messaging and social engagement.
03. <portfolio>
Adacta.ai screenshot
Adacta.ai
Full Stack Developer
AI-driven personal assistant that organizes documents, emails, and tasks in one place — with smart reminders, AI chat, and proactive planning.
React.js
Next.js
Prisma
PostgreSQL
OpenAI
Pendfunds screenshot
Pendfunds
Full Stack Engineer
Stripe-powered escrow platform for clients and freelancers — fund contracts upfront, release payments after review, and resolve disputes fairly.
React.js
Next.js
NestJS
Stripe
AWS
GudangAda SaaS screenshot
GudangAda SaaS
Frontend Engineer → Frontend Team Lead
SaaS platform connecting FMCG wholesalers and retailers in Indonesia — inventory, sales tracking, stock alerts, and business reporting in one place.
React.js
Next.js
Material UI
CI/CD
Vercel
Vulkan Solutions screenshot
Vulkan Solutions
Full Stack Engineer
Modern, animated marketing site showcasing IT services, process, and credibility — built for strong visual storytelling and performance.
React.js
Next.js
Strapi
Framer Motion
Vercel
CircleIt screenshot
CircleIt
Full Stack Engineer
Cross-generational messaging app for scheduling messages, birthday cards, e-gifts, and flowers for future life moments.
React Native
Firebase
Node.js
Socket.io
MySQL
Seerene screenshot
Seerene
React Native Engineer
Mobile app for NGOs and patients to book medical transport, manage profiles, and handle payments for hospital and dialysis visits.
React Native
Google Maps
Stripe
Google Auth
Facebook Auth
04. <tech stack>

JavaScript

TypeScript

React.js

React Native

Next.js

Material UI

Tailwind CSS

Node.js

NestJS

Express.js

MySQL

PostgreSQL

Git

GitHub

MongoDB

Firebase

05. <contact me>
Open to remote and relocation opportunities. Feel free to drop me a message.
Connect on LinkedIn
@Copyright 2026
Hasnain Ali
All rights reserved