Your Idea Deserves
Real Engineering,
Not Just Templates.
I'm Krithiga — Full-Stack Developer & Designer behind Busy Order.
I build web apps, Android apps, AI-powered systems, and blockchain solutions
that actually work in the real world.
I Don't Just Code —
I Engineer Solutions.
I'm Krithiga, a passionate full-stack developer and founder of Busy Order, a freelance agency based in Trichy, India. I specialise in turning complex real-world problems into clean, deployable digital products.
From AI-powered accessibility tools and biometric security systems to Ethereum blockchain apps and AWS-hosted cloud platforms — everything I build is real, working, and production-ready. If you need it built right, let's talk.
Services Built for
Real Results
Every service comes with real engineering, transparent communication, and outcomes you can be proud of.
Web Development
Full-stack websites and web apps built with React, Node.js, and AWS — fast, SEO-optimised, and scalable from day one.
- React / Next.js frontends
- Node.js / Express REST APIs
- Database design & integration
- AWS / Vercel deployment
App Development
Native Android apps (Kotlin) with Firebase — from idea to Play Store in weeks. Cross-platform Flutter available too.
- Kotlin (Android native)
- Flutter (iOS + Android)
- Firebase & REST API integration
- Play Store publishing
Custom Design
UI/UX design that converts visitors into customers — premium aesthetics grounded in real user psychology.
- Figma prototypes & wireframes
- Brand identity design
- Responsive UI systems
- Design-to-code handoff
College Projects
Technically deep, review-ready academic projects — especially AI/ML, security, and blockchain. Stand out in your viva.
- AI / Deep Learning projects
- Blockchain applications
- Security & biometric systems
- Full documentation included
Projects That
Push Boundaries
Skin Cancer Detection Mobile App
- CNN-based model with TensorFlow Lite for on-device skin lesion classification — fast, offline predictions on Android.
- End-to-end image pipeline: camera/gallery → OpenCV preprocessing → real-time inference with confidence scoring.
- Firebase integration for scan history storage with clean UI for result tracking.
AI Voice Navigation — Visually Impaired
- Android voice navigation system with hands-free destination search and audio-guided routing via speech-to-text + Google Maps API.
- AI-based object detection via camera with real-time voice feedback for environmental awareness.
- Low-latency pipeline combining speech recognition, navigation, and TTS for seamless real-time assistance.
Sign Language Recognition & Learning App
- Real-time sign language recognition and interactive learning using MediaPipe hand tracking + on-device ML.
- Gesture pipeline: camera → landmark extraction → model inference with instant text/audio feedback.
- Firebase Auth + Realtime Database to track learning progress and store gesture history per user.
Secure Voting System — Face Verification
- Secure web-based voting platform with face recognition voter authentication — prevents unauthorised access and duplicate votes.
- Tamper-resistant vote recording using blockchain-inspired data structures ensuring integrity and transparency.
- End-to-end workflow: authentication → vote casting → result tracking, with admin and voter interfaces.
Certificate Validation — Ethereum Blockchain
- Smart contracts store and validate tamper-proof certificate hashes on the Ethereum network.
- React.js + Web3.js + MetaMask interface for institutions to issue and anyone to verify certificates instantly.
- Decentralised — eliminates central databases and removes manual validation effort entirely.
Biometric Secure File Storage
- Secure Android vault with fingerprint biometric authentication to restrict access to sensitive files.
- Encrypted file storage and secure handling via Firebase for reliable cloud storage and retrieval.
- File management (upload, view, organise) within a protected environment ensuring privacy and controlled access.
Virtual Classroom — WebAR
- Browser-based virtual classroom using A-Frame + AR.js — interactive 3D learning without any app install.
- Real-time features (chat, sessions, collaboration) powered by Node.js + Socket.io for live interaction.
- 3D models, quizzes, and Firebase session management for a seamless classroom experience.
Cloud-Based LMS — AWS
- Full-stack LMS with course management, video delivery, quizzes, and progress tracking on AWS infrastructure.
- JWT-based auth with RBAC for students, instructors, and admins.
- AWS S3 (storage), CloudFront (CDN delivery), EC2 (hosting), RDS (MySQL) — fully scalable and production-ready.
College Event Management App
- Mobile app for college event management — event registration, scheduling, and notification-based reminders.
- Multi-screen UI: login, event browsing, participation tracking, and feedback collection.
- Backend logic for event management, alerts, and data storage to streamline student-admin coordination.
Daily To-Do Planner
- Productivity Android app for task management, reminders, note-taking, and daily activity planning.
- Task scheduling, calendar organisation, notification reminders, and analytics tracking.
- Material UI with Firebase for secure cloud sync, backup, and real-time data management.
Track Your Expenses — Finance Manager
- Published Android app for daily budgeting, income/expense management, and financial analytics.
- Expense categorisation, recurring transactions, dashboard insights, and visual spending charts via MPAndroidChart.
- Firebase for cloud backup, real-time sync, and secure user data management with Material UI.
abisharan.in — Client Website
- Responsive client website built with WordPress and custom layouts — mobile-first design throughout.
- Customised themes and UI components with HTML/CSS for a smooth, user-friendly experience.
- Responsive animations and optimised layout for cross-device compatibility.
busyorder.co.in — Official Agency Website
- Live business platform offering web, app, UI/UX, and custom digital solutions — designed and built by me.
- Responsive frontend, production-ready architecture, and Firebase + cloud service integrations.
- Built to convert visitors into clients — my own real-world example of the work I deliver.
What Clients
Say About Me
"Krithiga delivered our e-commerce website in half the expected time — and it looked better than anything we could have imagined. Communication was top-notch throughout. Will hire again."
"The AI sign language recognition app she built for our college fest won best project. The depth of technical work was genuinely impressive. Highly recommended for any AI project."
"Got our Android app built and live on the Play Store within 3 weeks. Krithiga handled everything — design, development, Play Store submission. Exactly what a busy startup needs."
"The blockchain certificate system she built for our department is now used every semester. Clean code, well-documented, intuitive interface. Worth every rupee."
"I needed a personal portfolio fast — Krithiga absolutely delivered. Modern design, smooth animations, and my clients immediately started noticing. Best investment this year."
Let's Build Something
Great Together
Have a project in mind? A college deadline coming up? Or just want to chat? I respond within 24 hours — let's make something real.
Chat on WhatsApp