Building Meaningful Tech | Software Engineer Specializing in Mobile, AI, and Localized Solutions

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Ratul Hasan Ruhan  • Peerlist

In every village and farm, cattle are more than animals — livelihoods, dreams, and family. But managing them isn’t always easy. Missed vaccinations, guessing weights, losing track of expenses, or struggling to find a vet in time — these challenges cost farmers both time and money. GoruSheba changes that. It’s your all-in-one cattle care companion, built for farmers in Bangladesh. With just your phone, you can: Create a profile for each cow with a QR code 📷 Instantly estimate weight with GoruMetrik ⚖ Ask our AI Farming Assistant anything, anytime 🤖 Find nearby vets when your cattle need help 🩺 Monitor farms with FarmEye IoT camera 📡 Track cattle movement with GoruCollar 📍 Keep farm expenses under control 💰 No matter where you farm — remote village or busy dairy — GoruSheba makes your cattle healthier, safer, and more productive. Because when your cattle thrive, your farm grows. 🌱

GoruSheba - IoT & AI Farming

Developed a streamlined Routine Management System for the Institute of Science, Trade & Technology (ISTT) to efficiently organize and automate class schedules, improving administrative workflow and student experience.

Institute of Science, Trade & Technology (IST

Ojogor is an interpreter for the Bengali programming language, enabling users to write and execute code in Bengali syntax. Designed for beginners and those new to programming, Ojogor makes learning and writing code more accessible and fun by using native Bengali keywords. It’s an innovative step toward making programming more inclusive and relatable for Bengali speakers.

Ojogor - Bengali Programming Language Interpr

Sydrix AI is your all-in-one study companion designed to help students learn smarter, focus better, and prepare effectively for exams. Whether you’re a school student, college learner, or competitive exam aspirant, Sydrix AI gives you the tools you need to stay on top of your studies.

Sydrix Ai - Study Smart

A beautiful Flutter app that encodes audio into stunning visual representations and decodes them back to audio.

Audio Processing:

Uses FFT (Fast Fourier Transform) for frequency analysis
Converts audio amplitude data to RGB color values
Supports WAV and MP3 file formats
Real-time waveform visualization

Image Generation:

Maps audio data to RGB pixel values
Creates square images for optimal data storage
PNG format for lossless compression
Reversible encoding/decoding process

WaveCode - Transfer image via audio wave

Bandhu AI is a mobile application designed to promote mental wellbeing through guided meditation, relaxation techniques, and emotional support via an interactive AI pet. Built with a focus on empathy and accessibility, Bandhu AI offers users a safe space to unwind, reflect, and reconnect—with themselves and their digital companion. The app blends local cultural insights with modern technology to make mental health care more personal and engaging.

Bandhu AI

Developed an AI-based mental well-being app to enhance users' mental health and lifestyle. Key features include:

AI Food Scan: Instantly recognizes food items and provides detailed nutritional information.
Calory AI: Personalized calorie tracking and management.
NFT Pet: Unique digital pets using NFT technology for an engaging user experience.
AI Pet: Interactive virtual pet powered by advanced AI algorithms.

Emerge AI – Mental Well-being App

Built a real-time Forex signals app using Flutter, featuring live trend analysis, signal alerts, and a clean UI for smooth trading insights. Designed to help users make faster, smarter decisions in the Forex market.

Demonstration: https://github.com/ratulhasanruhan/rafkhata/raw/refs/heads/main/khero_khata/projects_video/forex.mp4

Forex Signals – Live Trends & Analysis App

Introducing our new Blood Donation and Medical App. Easily find donation centres, schedule appointments, and track your history. Access the latest health news, and medication schedules, and store records securely. User-friendly for everyone. Download now and make a difference.

USER APP:  https://play.google.com/store/apps/details?id=com.rhrsoft.rokto

DOCTOR APP:  https://play.google.com/store/apps/details?id=com.rhrsoft.hello_doctor

Hello Chatkhil

Key Features:

Educational Games: A collection of interactive games that enhance cognitive skills, problem-solving abilities, and creativity.
User-Friendly Interface: Intuitive and child-friendly design, ensuring ease of use for kids.
Curriculum Integration: Games and activities aligned with the curriculum to reinforce classroom learning.
Progress Tracking: Tools for parents and teachers to monitor and support children's progress.

Role:

Collaborated with educators to ensure the app's content is educational and enjoyable.
Designed and developed the app using modern technologies and best practices in UI/UX.
Implemented features that promote active learning and engagement.

Impact:

Enhanced learning experience for children by making education fun and interactive.
Supported the mission of Cambrian School and College to provide quality education through modern technology.

Junior Cambrian

Ojogor is an interpreter for the Bengali programming language, enabling users to write and execute code in Bengali syntax. Designed for beginners and those new to programming, Ojogor makes learning and writing code more accessible and fun by using native Bengali keywords. It’s an innovative step toward making programming more inclusive and relatable for Bengali speakers.

Ojogor - Bengali Programming Language

I built Porichoy (porichoy.me) as a free platform to help people in Bangladesh easily create their own online portfolio. Whether you're a student, freelancer, or job seeker – now you can showcase your identity and work in just a few clicks, without spending a single taka.

This is my small contribution to help others build their digital presence. ❤️

Porichoy – A Free Portfolio Website Tool

This is an open-source Islamic application.

Playstore: https://play.google.com/store/apps/details?id=com.muslim.productive

Github: https://github.com/ratulhasanruhan/productive_muslim

Productive Muslim

This gold investment app offers a user-friendly and secure platform to buy, sell, and track your gold investments. Get real-time market data and analysis, set up alerts, and manage your portfolio from your smartphone.