Portfolio | Herlambang

Featured Projects

Business case studies, not just screenshots.

Each project is framed around the problem it solves, the work delivered, and the business value behind the build.

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Case Study

WeNoiZe

My Role

Mobile App Developer

Duration

2 Weeks

Business Problem

Independent musicians and campus music communities often struggle to publish and share their original work because existing music distribution platforms are either too expensive, too complex, or not designed for emerging creators.

Solution

Designed and developed a mobile music streaming platform where independent artists can publish songs, manage their content, and connect listeners through a simple, mobile-first experience. The MVP was built with a scalable backend architecture to validate the product quickly while supporting future growth.

Result

The MVP allowed campus musicians to upload and stream their own music in one place, validating the concept through real user testing and proving there was demand for a simpler platform built around independent creators.

Tech Stack

FlutterMedia UIAnimationMobile UX

Demo

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Case Study

Dapur Pizza Catering

My Role

Full Stack Developer

Duration

2 Weeks

Business Problem

Customers had to repeatedly ask about the menu, pricing, and ordering process through WhatsApp because the business had no centralized online information.

Solution

I built a simple landing page with a mini e-commerce catalog that showcases the menu, pricing, gallery, and a direct WhatsApp ordering button.

Result

Customers could browse the menu and pricing independently, reducing repetitive WhatsApp inquiries and making the ordering process faster and more organized.

Tech Stack

NextJsSanityCMSOrder Flow

Demo

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Case Study

Clinix

My Role

Mobile App Developer

Duration

8 Weeks

Business Problem

Hospitals need a simpler way to manage appointments, doctor schedules, and patient-facing services without mixing data between branches.

Solution

Developed a multi-tenant mobile application that allows each hospital branch to manage appointments, doctor schedules, and patient information independently while sharing a consistent platform.

Result

Patients can book appointments more easily, while each hospital branch manages its own schedules and information without interfering with other branches.

Tech Stack

FlutterLaravelREST APIMulti-Tenant System

Demo

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Case Study

QuickBite

My Role

Mobile App Developer

Duration

5 Weeks

Business Problem

Food businesses need a fast ordering experience that helps customers browse menus, place orders, and understand delivery status without friction.

Solution

Designed and developed a mobile food delivery flow with restaurant browsing, meal ordering, order tracking, and a modern interface optimized for daily use.

Result

Customers can move from discovery to checkout faster, giving the business a clearer path from menu views to completed orders.

Tech Stack

FlutterREST APIMobile UIOrder Flow

Demo

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Case Study

FitTrack

My Role

Mobile App Developer

Duration

4 Weeks

Business Problem

Fitness users often lose motivation when workout data, progress, and routines are spread across notes, spreadsheets, or inconsistent tracking tools.

Solution

Created a mobile fitness tracker with workout logs, progress statistics, and personalized insights presented in a clean app experience.

Result

Users can track routines more consistently and understand progress without needing a complicated fitness management setup.

Tech Stack

FlutterMobile AnalyticsDashboard UIData Tracking

Demo

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Case Study

Durniture

My Role

UI/UX Designer

Duration

1 Weeks

Business Problem

Furniture shoppers need enough product clarity to feel confident before buying, especially when comparing style, price, and room fit on mobile.

Solution

Designed a furniture commerce experience with strong product visuals, simple navigation, and a focused purchase path.

Result

The shopping flow gives customers a calmer way to explore products and helps the business present furniture with stronger buying context.

Tech Stack

Mobile UI/UXE-Commerce FlowProduct CatalogFlutter

Demo

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Case Study

Lumpia Semarang Online

My Role

UI/UX Designer

Duration

1 Weeks

Business Problem

Local culinary businesses need online ordering that feels trustworthy while still preserving the cultural identity of the product.

Solution

Created an e-commerce experience for ordering Semarang lumpia with clear product presentation, easier ordering, and a modern visual structure.

Result

Customers can understand the product, place orders more easily, and trust the buying experience without losing the local brand feel.

Tech Stack

E-Commerce UIResponsive DesignProduct UXCheckout Flow

Demo

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Case Study

Joefixa Pizza

My Role

UI/UX Designer

Duration

1 Weeks

Business Problem

Pizza businesses need an ordering experience that makes menu choices clear and helps customers complete orders quickly from mobile devices.

Solution

Designed a food ordering interface with clear product sections, visual menu browsing, and a focused path from selection to order intent.

Result

The experience supports faster decisions and gives the business a cleaner way to turn menu interest into customer action.

Tech Stack

Food Ordering UIMobile UXProduct MenuCheckout Flow

Demo