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Vishnu ShajiAvailable for work
Hire Me
Available for Full-Stack & Mobile Engineering

Engineering digital products that conquer scale.

Hi, I'm Vishnu Shaji — a full-stack & mobile architect based in Kerala. I design high-impact web platforms, real-time WebRTC audio networks, and 60fps cross-platform mobile apps.

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6+
Shipped Systems
35+
Mobile Screens
100%
Success Rate
system_radar.ts
FLAGSHIP WEB & PWA · 2026Live Verified

CallNGo (CarConnect)

QR-code privacy vehicle calling system with zero phone number exposure. Features browser-to-browser WebRTC audio streaming, Supabase presence signaling, and responsive PWA installability.

Signaling Latency
<45ms
Privacy Protection
100%
Tech Stack
Next.js 16 + WebRTC
WebRTC Peer Signaling
Explore details
Engineering Journey

The Timeline

How continuous learning, client trust, and real-world challenges shaped my engineering process.

2023Full-Stack CoreMastered React & Node.js

FOUNDATIONS & WEB ARCHITECTURE

From syntax to full-stack logic

Deepened expertise in JavaScript, React, Node.js, and modern CSS. Built full-stack utilities, database-driven applications, and automated workflows.

2024Client ProductionLive Production Deployment

CLIENT DELIVERY & MOBILE APPS

Shipping software for real users

Partnered with institutions and clients to build tailored software. Shipped the Stella Maris web platform and commenced development on a custom cross-platform mobile ecosystem.

2025Mobile Ecosystem35+ Screens Delivered

INSTITUTIONAL SCALE & 35+ SCREENS

Replacing manual operations with software

Delivered the comprehensive 35+ screen Stella Bridge platform. Engineered automated fee tracking, live quiz grading, and assignment distribution for students and teachers.

2026Present · FlagshipWebRTC Audio + Flutter Apps

REAL-TIME WEBRTC & FLUTTER SUITE

P2P voice calling & cross-platform engineering

Engineered CallNGo (CarConnect) — a privacy-first WebRTC peer-to-peer audio platform with QR code triggering and sub-45ms Supabase signaling. Shipped native mobile applications in Flutter & Dart.

Engagement Models

Services & Solutions

Transparent scope, direct communication, and production-ready code. No bloated agency overhead.

Landing Page & Web Presence

High-converting, ultra-fast websites designed to present your business professionally, rank well on search engines, and convert visitors into active leads.

Starting from
₹3,500 - ₹12,000
Est. Timeline: 3–5 days
What's included:
Custom responsive design & motion
Mobile-first fluid layout
Interactive forms & WhatsApp CTA
SEO fundamentals & structured metadata
Deployment to Vercel/Cloudflare
Inquire Now
Most Popular

Full-Stack Web Platform

Complete custom web applications with authenticated user dashboards, real-time data sync, and admin panels built for long-term production scalability.

Starting from
₹25,000+
Est. Timeline: 2–5 weeks
What's included:
Next.js 16 + TypeScript frontend
Supabase / PostgreSQL backend
Auth, RBAC & user permissions
Interactive dashboards & analytics
1 month post-launch support
Inquire Now

Cross-Platform Mobile App

Native Android & iOS applications built with Flutter or React Native, packed with offline support, native push alerts, and Play Store readiness.

Starting from
₹45,000+
Est. Timeline: 3–6 weeks
What's included:
Flutter / React Native architecture
Smooth 60 FPS mobile UI/UX
Local SQLite cache & offline sync
Push notifications & API wiring
Store submission assistance
Inquire Now
Featured Engineering Portfolio

Selected Shipped Systems

Production web platforms, real-time audio networks, and cross-platform mobile ecosystems built for real clients and active users.

CALLNGO · WEBRTC SIGNALING
AES-256 Encrypted
QR Scan → Peer Voice Audio
Direct WebRTC audio • Zero mobile number leakage
Peer Connected (Latency: 42ms)
Supabase PresencePWA Offline Ready
FLAGSHIP · WEB & PWA · 2026

CallNGo (CarConnect)

A privacy-first vehicle communication platform. Drivers place a dynamic QR code on their vehicle; passersby or parking attendants scan the QR to initiate peer-to-peer WebRTC audio calls without ever exposing either party's personal phone number.

"Browser-to-browser WebRTC audio with sub-45ms peer signaling via Supabase."

Next.js 16WebRTCSupabasePWATypeScriptTailwind CSS
Request Private Demo
Stella Bridge Mobile Platform
MOBILE · DELIVERED TO CLIENT

Stella Bridge Mobile Platform

Enterprise school management platform for Stella Maris School. 35+ screens serving students, teachers, and administrators. Includes live fee payments, quiz management, student progress dashboards, and multimedia assignment submissions.

"Replaced disparate WhatsApp groups into a unified digital school campus."

React NativeAndroidFastAPIMongoDB
Discuss Architecture
Stella Maris School Website
WEB · LIVE IN PRODUCTION

Stella Maris School Website

Modern institutional digital presence for Stella Maris School. Features online admission inquiries, faculty directory, interactive event galleries, and fast mobile-optimized pages.

"Serves hundreds of active parent and prospective student visits weekly."

ReactNext.jsTailwind CSSSEO
Visit Live Site
DocuCompare Automation Engine
AUTOMATION · DELIVERED TO CLIENT

DocuCompare Automation Engine

Automated document processing and diffing pipeline powered by n8n workflow triggers and a FastAPI backend. Built for a client handling heavy loads of multi-page technical contracts.

"Decreased manual document comparison turnaround from hours to under 30 seconds."

n8nFastAPIPythonDocument AI
Learn More
Vishnu ShajiVishnu Shaji
Vishnu Shaji
Kerala, India
About The Developer

Architecting systems that solve real-world problems.

I am a full-stack engineer and mobile architect based in Kannur, Kerala. Over the past several years, I have engineered and deployed complete digital ecosystems — from institutional mobile applications serving hundreds of active daily users to real-time WebRTC audio systems.

Rather than treating code as just a task list, I focus on the complete end-to-end product engineering: resilient offline caching, low-latency signaling, intuitive UX, and clean maintainable codebases. When you partner with me, you collaborate directly with the architect who designs, builds, tests, and ships your product.

6+
Shipped Systems
35+
Screen Client App
100%
On-Time Delivery
Download Resume / CVHave a project in mind? →
Collaboration Workflow

How We Build Together

An engineering process focused on clarity, rapid momentum, and zero surprises.

01
STEP 01

Discovery & Strategy

A focused 20–30 minute architectural brainstorm to understand your core objective, user flows, and technical requirements. Zero fluff.

Book a discovery call
02
STEP 02

Scope & Architecture

You receive a clear, milestone-driven technical specification with exact deliverables, tech stack choices, and fixed timelines.

03
STEP 03

Focused Sprints

Fast, transparent development cycles with staging URLs and weekly demos. You test and provide direct feedback on working builds.

04
STEP 04

Deploy & Support

Complete production launch, domain setup, store submissions, and 30 days of included post-launch monitoring and bug fixing.

Client Endorsement

Trusted by Founders & Institutions

Verified Client Project · 35+ Screens Delivered

"Vishnu built our school's entire digital system from scratch. What impressed us most was how clearly he explained every step — from database architecture to the teacher portal. We always knew exactly what was being built and why."

School Administration
Stella Maris School · Kannur, Kerala
Technical Competence

Skills & Tooling

Battle-tested frameworks and technologies used across live client platforms, mobile stores, and real-time systems.

Production Tooling 2026

Web Platforms

High-performance SSR, client state architecture, and responsive web applications.

Next.js 16React 19TypeScriptTailwind CSS v4PWAFramer Motion
Production ReadyVerified in Apps

Cross-Platform Mobile

Shipped 35+ screen institutional mobile platforms & cross-platform suites.

FlutterDartReact NativeAndroid SDKOffline SQLitePush Notifications
Production ReadyVerified in Apps

Backend & Real-Time

Peer-to-peer audio streaming, microservices, and async data pipelines.

WebRTC AudioFastAPI (Python)Node.js / ExpressREST APIsWebSocket Signaling
Production ReadyVerified in Apps

Database, Auth & Cloud

Relational modeling, real-time presence, and secure cloud storage infrastructure.

SupabasePostgreSQLMongoDBFirebaseNextAuthRow-Level Security (RLS)
Production ReadyVerified in Apps
Frequently Answered

Common Questions

Clear answers regarding timelines, pricing, code ownership, and technical collaboration.

Get In Touch

Let's engineer your next product.

Have an ambitious web platform, a real-time WebRTC architecture, or a cross-platform mobile app to build? Drop a message below or reach out directly on WhatsApp for an instant response.

Location
Kannur, Kerala, India (Remote worldwide)
Phone / WhatsApp
+91 7907021204

Send an inquiry

I respond personally to every project inquiry within 24 hours.