Shipped systems
Six builds running in production, described by what actually went wrong and what was done about it. The connection leak. The privilege escalation path. The race that dropped cart updates. That is the part worth reading.
What has The Cubas built?
The Cubas has shipped multi-vendor marketplaces, ecommerce platforms, booking applications and developer tools using Next.js, React, TypeScript, Node.js, PostgreSQL and MongoDB. Each build is documented with the engineering decisions and production incidents behind it rather than a feature list.
Projects live
11
Shipping since
2021
Published
IEEE, 2023
Current role
Full Stack Engineer, Times IT
6 builds · 4 categories
Marketplaces, stores, booking systems and developer tools. Each one links to a full write up of the architecture and the problems that shaped it.
ProductionEcommerce · 2025
Multi-vendor marketplace running in production
A bilingual storefront, vendor dashboards and an admin back office in one marketplace, running in production on its own domain.
ProductionEcommerce · 2025
Home and decor store, hardened after launch
A home and decor storefront with customer and admin dashboards, Chart.js reporting and PDF invoices, maintained in production across more than 200 commits.
ProductionMarketplace · 2025
Farm to table marketplace with a split client and API
A marketplace connecting local farmers listing produce with customers who browse, order and pay, built as a Next.js 15 client against a separate Express API.
LiveBooking · 2024
Hotel booking from search to payment
A booking application covering listing discovery, reservations, property management and payment, with seeded demo accounts so anyone can walk the full flow.
Open sourceDeveloper tools · 2025
SQL to entity relationship diagram, with no server
Paste SQL from any dialect and get an entity relationship diagram. No account, no upload, no server, and 247 tests covering four dialects.
Open sourceDeveloper tools · 2025
JavaScript playground with a real console
Write JavaScript and watch console output and a live DOM preview beside the editor, with a sandbox that an infinite loop cannot wedge.
Who builds this
Ashraful works across backend decisions and frontend detail. He designs typed REST APIs and data models, builds background jobs and authentication flows, then brings those pieces into Next.js and React interfaces that stay usable under real conditions.
The experience that shaped how he works came after launch rather than before it. Investigating a connection leak that only appeared under load. Closing a privilege escalation path found in his own audit. Fixing a race condition that dropped cart updates during rapid clicks. Those taught him to verify how a system behaves, not how it reads in code.
Times IT
Delivers full stack features from database design to production using Next.js and Node.js
Dorik
Built access control, scheduling, filtering and subscription features
Code Partner IT Solutions
Built and shipped MERN stack applications end to end
Engineering services
The same practices these projects were built on, applied to your product.
Send us the brief or the broken thing. We will tell you what it takes and whether it needs building at all.
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