Software Architect
Platform Engineer
Backend Architect
Enterprise Software Engineer
Software Architect
Platform Engineer
Backend Architect
Enterprise Software Engineer
I build software that connects the digital and physical world. Since 2010, I have focused on turning complex business requirements into stable, maintainable systems across enterprise web platforms, backend services, kiosks, payment integrations, hardware communication, and automation workflows. I am Nurul Huda, a software engineer with 15+ years of active coding experience, and I care most about architecture that survives real production constraints: scale, reliability, interoperability, and long-term maintainability.
I design systems for organizations that need dependable backend services, clean APIs, hardware-aware workflows, and business automation that can keep working under day-to-day production pressure.
This portfolio is built to show depth of engineering experience, not percentage scores. The emphasis is on verified career milestones, production-oriented architecture, and the kinds of systems I have spent years building since I started coding professionally in 2010.
Built and evolved hospital information systems supporting multi-branch operations, patient insurance workflows, and healthcare business processes. Delivered hardware integration for hospital environments and designed synchronization flows that kept operational data aligned across multiple branches and connected systems.
Built business applications and strengthened internal development foundations with cleaner code structure, reusable components, and architecture improvements that supported scalability, integration readiness, and long-term maintainability.
Developed internal software and operational tools while managing IT execution for day-to-day business processes. This role established the foundation for later enterprise-focused work in process digitization, internal systems, and practical software architecture.
Bachelor degree focused on Informatics Engineering.
Public freelance profile focused on enterprise software, backend engineering, business automation, API integration, kiosk systems, and hardware communication.
I prioritize maintainable architecture, stable interfaces, reusable backend services, and delivery choices that support long-term operations instead of short-lived feature spikes.
The work spans business software, operational tooling, client-facing platforms, and hardware-linked products where reliability and integration quality are essential.
A cross-section of platforms, products, and experiments spanning enterprise web systems, mobile applications, desktop tooling, hardware-aware software, and interactive demonstrations.
A single-store online shopping app designed for a simple mobile experience with a strong focus on practical day-to-day transactions.
Key features include Raja Ongkir integration, QRIS payments, and order tracking.
A recycling bank mobile app built for customer operations, waste pickup coordination, and the use of waste savings within daily transaction flows.
Key features include Google Maps API integration for pickup routing, recycling-bank customer management, and essential-goods purchasing through waste savings balances.
An online milk tea ordering app built for mobile-first sales flows and flexible payment handling.
Key features include Uber API integration, Stripe payments, credit card processing, Clover, PayPal, cash acceptor support, and membership and points systems.
gTools is a native iOS operational companion app that bridges mobile operators with SMIS-based websites, kiosk endpoints, machine services, and hardware peripherals from a single secure interface.
What I built here includes website binding by QR or manual URL, secure session handling, an embedded web portal with JavaScript bridge, native App Service actuator rendering, kiosk and machine connectivity, remote operator tools, Bluetooth printer support, and structured logging for diagnostics.
The project demonstrates practical integration between native mobile UX, backend-driven UI, kiosk service APIs, printer workflows, and field-ready operational tooling.
Gizmo Kiosk iOS is a native SwiftUI application built for the Gizmo service ecosystem, combining telecom onboarding, kiosk discovery, AI-assisted support, and payment workflows in one mobile experience.
What I built here includes Ask Gizmo AI interaction, nearest kiosk lookup with GPS awareness, IMEI-based activation and number transfer onboarding, hosted online checkout, and kiosk QR payment support connected to production backend services.
The app shows how I translate kiosk and telecom operations into a practical iPhone experience that stays connected to real service endpoints, location features, and cross-channel payment flows.
Desktop control center for smart kiosk and smart payout machines, built to unify bill acceptor, coin acceptor, hopper, printer, scanner, remote API, WebSocket, camera, and automation workflows in one operational dashboard.
I built this as a middleware hub between kiosk hardware, machine controllers, remote operators, mobile apps, and web clients so the same machine can be monitored, controlled, and extended from a single desktop application.
Core capabilities include HTTP API exposure, realtime WebSocket control, cash handling logic, serial communication layers, printer integration, Clover payment bridging, camera control, and AI-assisted operational flows.
My first WordPress theme built with Bootstrap, using a responsive approach and a high level of front-end customization without requiring login access.
Visitors can adjust backgrounds, colors, and display modes through cookies, including normal, simple, sepia, grayscale, black and white, and an energy-saving dark mode.
Prototype interface built from scratch using jQuery and CSS3 only.
This project was not focused on responsive layout, but rather on front-end visual exploration and interaction design.
A tourism website project built with the local government to publish destinations, attractions, and travel information for Banyuwangi.
Related screens: Maps View
A custom WordPress company-profile theme for an agribusiness brand, built with a green-yellow visual identity and circular navigation as a distinctive design element.
Customization of an Andrina-Lite based company profile site with layout changes, background adjustments, and slider integration using Nivo Slider.
A hospital information system that handles cross-department workflows including payroll, pharmacy inventory, cashier operations, receptionist tasks, medical records, finance, accounting, surgery, purchasing, and many other operational modules.
The screenshot shown here comes from the Accounting Daily Transaction module.
Rebuild and development of a government web profile from a Pigment free theme, including a 3D rotating image menu as a distinctive visual interaction.
One of my early WordPress projects, involving customization of the standard WP Creativitix theme to better match the client's visual and functional requirements.
A focused set of showcase cards that highlight the kinds of systems I build most often for clients: enterprise software, hardware integration, automation workflows, and interactive product demonstrations.
Interactive browser-based kiosk demonstrating a production-style ordering workflow, self-service UX, and the kind of software-hardware thinking required for real kiosk deployments.
Industrial payment device communication integrated with Telegram notification flow and production-style interaction logic for kiosk and machine-driven scenarios.
Enterprise document automation and reporting workflow built to generate production-ready PDFs faster and reduce repetitive manual processing.
Live browser-based sandbox where visitors can explore kiosk-oriented interaction flows and experience the software directly instead of only reading about it.
Enterprise software, backend engineering, business automation, API integration, kiosk systems, and hardware communication offered through a public freelance profile.
When the right project allows it, I like to expose working software directly so clients can evaluate interaction quality, flow design, and technical implementation in a more tangible way.
Interactive browser-based demonstration environment for kiosk-oriented workflows, product exploration, and service module interaction.
Recorded walkthrough showing a working kiosk journey from ordering interaction through a polished self-service flow.
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