FullStack Product Engineer.
I’m SajidUllah (aka s5sajid) a self-taught developer and designer who values clean logic, refined aesthetics, and the tiny details that make a product feel right. I build digital products that people actually want to use.
SELECTED WORK
Plato | Restaurants Menu Platform
Plato is a lightweight, mobile-first SaaS platform that enables small restaurants to have custom online menus sites in minutes. Built on a real-time architecture, it synchronizes live menu updates, promotional deals, and order notifications across a single, low-latency dashboard, eliminating the need for complex POS integrations or heavy frontend overhead.
S5ARC | End-to-End Ecommerce SaaS Platform
A modern, open-source e-commerce platform built to empower non-technical founders in Cash-on-Delivery markets. Featuring 60-second store launches, sub-domain multi-tenancy, and a cutting-edge architecture. This production-ready platform empowers businesses to launch isolated storefronts in seconds featuring headless ecommerce, a comprehensive admin dashboard, and a seamless customer experience.
ABOUT ME
The Journey
Starting with the sweet name of Almighty Allah. Over the last few years, I've always tried to create systems & products to engineering complete digital ecosystems instead of simple web apps because that's what the whole industry is heading towards. I don't just look at the technical stack; I look at the user experience, the system architecture, what the users wants, what are the problems and how to solve it and how it all fits together.
My favorite approach to UI/UX is a blend of minimalism and functional design, shaped by a curated taste and backed by scalable, type-safe, and maintainable architecture. I believe the best software feels effortless to use, which requires obsessive care behind the scenes.
Following the principle of excellence in my work, I build platforms that do more than look good on a screen. They solve real problems for the people who use them, whether it's a complex multi-tenant system or a fluid, animated web experience.
Skills & Tools
Experience
Full-Stack Product Engineer
S5PAGES · Present
Architecting a drag-and-drop platform that lets businesses launch scalable e-commerce experiences seamlessly, with workflows specifically optimized for cash-on-delivery economies.
Mobile & Web Engineer
Independent Projects · 2023
Partnering with clients to build intuitive, high-performance applications from the ground up, focusing on clean UX and robust architecture across iOS, Android, and Web.
Full-Stack Developer
Self-Employed · 2020-2022
The foundation years. Mastered front-end fluidity and back-end systems, learning exactly what makes a digital product tick under the hood.
THOUGHTS
The story behind 'S5'.
A first-person account of how S5Brand emerged—from an early YouTube experiment, to building a family-led personal brand grounded in education and product creation
2025-12-14 · 2 min read DESIGNThe Beauty of Constraints in UI Design
Exploring how working within limitations can actually foster creativity and lead to better design solutions.
2023-05-15 · 5 min readGET IN TOUCH
Have a project in mind or just want to chat about design, big ideas and development? I'm always open to interesting conversations and collaborations.