Salman Abualhin
Full-stack product engineer — from UX design and architecture to working code.
Selected work
Offline-First POS & Financial ERP
An enterprise-grade, offline-first Point of Sale (POS), inventory control, and double-entry bookkeeping ERP system tailored for retail merchants with zero-trust cryptographic security.
Kotlin · Jetpack Compose · NestJS · Fastify
E-Commerce Platform & Admin Dashboard
A premium e-commerce platform featuring a modern storefront, advanced Role-Based Access Control (RBAC), and a comprehensive admin dashboard.
Next.js · TypeScript · Supabase · Tailwind CSS
Online Donation Platform
An online donation platform connecting people worldwide with Gaza's community — I led the concept, UX flow, and full-stack build using Next.js, Express.js, and MongoDB, with Stripe/PayPal integration and a 98% Lighthouse score.
Next.js · Express.js · Tailwind CSS · MongoDB
Teaching
Data Structures & Algorithms — Complete Course for Beginners
A free 10-lectures course teaching Data Structures, Algorithms, and Time & Space Complexity from the ground up, designed for students with little or no programming background. Covers Arrays, Strings, Linked Lists, Stacks, Queues, Hash Tables, and Sorting & Searching algorithms, with hands-on practice problems throughout.
10 lectures · Beginner · Free
In their words
“The work was excellent, exactly as required, delivered within the expected timeframe, and the communication was top-notch.”
Ahmad A.
Client, PizzaTruck
“Salman is not just a developer, but a problem solver who thinks about the bigger picture. His solutions are always well-architected and future-proof.”
Mohammed Tubji
Academic Instructor, Palestine Technical College
“What truly sets him apart is his collaborative spirit and initiative.”
Hazem Badran
Founder, Kufeah
Available for freelance projects · Response within 24h