Available for freelance projects

Building Digital
Experiences That Matter

I craft
20+
Projects Built
3+
Years Experience
10+
Happy Clients
1
Custom Font Created

Who I Am

A passionate developer and designer crafting digital solutions across multiple platforms and technologies.

Rotana Profile

Full Stack Developer & Creative Technologist

I'm a multidisciplinary developer who bridges the gap between design and technology. From building robust Chrome Extensions to developing cross-platform mobile apps with Flutter, creating custom typefaces like "Chhuk Krapom Font", to architecting full-stack MVC web applications and customizing SAP Business One solutions — I thrive on turning complex challenges into elegant, user-friendly solutions.

My approach combines technical precision with creative vision, ensuring every project not only functions flawlessly but also delivers an exceptional user experience.

Chrome Extension Flutter HTML5 CSS3 JavaScript React Node.js SQL Python Figma Font Design SAP B1 Git
Professional Timeline
2025 — Present
Full Stack Developer
SAP Business One
Full-stack developer delivering cross-platform solutions including C# MVC web applications and Flutter Android apps. Handles the complete development cycle from backend business logic and database design to frontend UI, ensuring cohesive and efficient software across web and mobile.
2023 — 2025
ERP Developer
SAP Business One
Working as an ERP Developer focused on SAP Business One. Responsible for customizing business logic with queries, transaction notifications, FMS, and Crystal Reports. Also involved in integrating external systems and enhancing workflow automation to support efficient business operations.
2022 — 2023
Graphic Designer
Banner & Poster Design for Clothing Website
Designed promotional banners, posters, and visual content for a fashion e-commerce website. Focused on brand identity, product presentation, and social media engagement through visually appealing and cohesive designs.
2019 — 2023
Bachelor's in Computer Science
RUPP — Royal University of Phnom Penh
Graduated in 2023 with a Bachelor's Degree in Computer Science. Focused on software engineering and human-computer interaction. Served as President of the Coding Club, promoting tech collaboration and innovation.

Featured Projects

A curated selection of my work across different domains and technologies.

Chrome Extension

Chrome Extension Suite

Powerful browser extensions enhancing productivity and user experience with custom UI overlays and background automation.

JavaScriptManifest V3Chrome API
Flutter App

Cross-Platform Mobile App

Beautiful, high-performance mobile applications built with Flutter, delivering native-like experiences on both iOS and Android.

FlutterDartFirebase
Chhuk Krapom Font

Chhuk Krapom Font

A custom-designed typeface crafted with precision. From concept to final glyphs, this font represents my passion for typography.

FontForgeTypographyOTF/TTF
MVC Web App

Full Stack MVC Web App

Enterprise-grade web applications built with MVC architecture, featuring responsive design, secure APIs, and scalable backends.

MVCREST APISQL
SAP Business One

SAP Business One Solutions

Custom SAP B1 integrations, add-ons, and reporting solutions that streamline business operations and enhance data visibility.

SAP B1DI APICrystal Reports
Graphic Design

Graphic Design Portfolio

Creative visual designs including branding, UI/UX, marketing materials, and digital illustrations for various clients.

FigmaAdobe CCBranding

Live Chrome Extensions

Install directly from the Chrome Web Store and supercharge your browser workflow.

Password Generator
Rotana Password Generator
Live

A smart password generator extension that helps users create strong, unique passwords for their online accounts.

SAP B1 Finder
SAP B1 Table Finder
Live

Utility extension for SAP B1 developers — quick access to table lookups, field references, and productivity tools.

Bootstrap Cheat Sheet
Live

Fast, keyboard-friendly Chrome Extension with the entire Bootstrap 5 class reference one click away.

CharCount Pro
Live

The ultimate text analysis tool for writers, marketers, developers, and anyone who works with words on the web.

ESR IPA Chart
Live

Quick-reference International Phonetic Alphabet tool for English learners, teachers, linguists, and pronunciation enthusiasts.

ChemTable — Periodic Table
Live

An elegant interactive periodic table popup for university chemistry students.

Telegram Bots

Handy bots I've built to automate tasks, deliver content, and enhance daily workflows — available 24/7 on Telegram.

Image to Text Bot
@imagetotextkh_bot

Convert image to text with support for more than 10 languages.

Color Picker Bot
@colorpickerkhbot

Pick colors from images or the web and get their hex codes instantly. Perfect for designers and developers.

Premium Password Manager Bot
@PremiumPassManagerBot

Save your passwords securely with full encryption. Easy backup for your accounts in minutes.

គណនាគណិតវិទ្យា
@mathforubot

Calculate exercises, integration, limits — supports implicit functions.

Image to PDF
@imageToPdfkhbot

Convert images to PDF — supports more than 100 images at once.

Auto reach❤️ & Task Bot
@Auto_reachheartkh_bot

Auto Reach ❤️ in direct chat, in channel and in group.

English Dictionary
@Englishdictionarykhbot

Send any English word to get: meaning, synonyms, antonyms, and pronunciation.

SAP B1 Table Finder
@SAPtablefinderbot

Find SAP Business One tables and their relationships with ease.

Sticker Downloader
@KHstickerdownloadbot

Download Telegram stickers as PNG, JPEG, or WEBP files.

From The Blog

Thoughts, tutorials, and insights on development, design, and technology.

Let's Build Together

Whether you have a startup idea, a business challenge, or a creative vision — I bring the skills to make it real.

Startup Projects

Turn your idea into a working product. I help founders build MVPs fast — web apps, mobile apps, or browser extensions.

Business Automation

Streamline operations with custom SAP B1 add-ons, automated reports, and integrations that save real hours every week.

Brand & Design

From logo systems to full UI kits, I create cohesive visual identities that are recognizable, scalable, and on-brand.

Training & Mentoring

Developer mentoring, tech workshops, and coding club sessions — helping the next generation of Cambodian developers grow.

Mobile App Dev

Cross-platform Flutter apps with polished UX — from concept and wireframes all the way to App Store and Play Store deployment.

Bot Development

Custom Telegram bots for your business, community, or workflow — automation, notifications, payments, and much more.

Ready to Collaborate?

I'm open to freelance work, contract projects, long-term partnerships, and open-source contributions. Let's talk about what you're building.

Have a Project in Mind?

I'm always open to discussing new projects, creative ideas, or opportunities to be part of your vision.