How do I hire a freelance developer in India?

Email kssonigara@gmail.com or call +91-73000-03101. Every project with Karnveer Singh starts with a initial scoping conversation and a fixed first milestone to establish architecture, timeline, and cost upfront.

What tech stack does Karnveer Singh work with?

Backend: Python (FastAPI, Django), Java (Spring Boot), Node.js/NestJS. Frontend: React, TypeScript, Tailwind CSS, TanStack Router/Next.js. Mobile: Flutter (iOS + Android). Infrastructure: PostgreSQL, Redis, Docker, Railway, Cloudflare.

What is included in full-stack freelance delivery?

Complete end-to-end delivery: UI/UX design, database schema, REST/GraphQL API, web or mobile frontend, technical SEO/AEO/GEO architecture, CI/CD deployment, and handover documentation.

Can I hire Karnveer Singh for a single project or milestone?

Yes. Karnveer takes single-project engagements as well as ongoing advisory roles. Whether it is an MVP, a full web application, a mobile app, or a system refactor, work is scoped in clear fixed milestones.

Hire Freelancer in India

Hire a Full-Stack IT Freelancer in India — 100+ Sites Shipped

Looking for a senior, reliable full-stack developer in India to turn your product vision into production code? Karnveer Singh (K.V.) brings 6+ years of full-stack engineering experience, having shipped over 100+ web applications, mobile apps, and custom platforms for startups and businesses worldwide.

Start a Project +91-73000-03101

Full-Stack Stack & Disciplines

Backend & APIs

Python (FastAPI, Django), Java (Spring Boot), Node.js (NestJS). High-concurrency microservices, PostgreSQL schema design, Redis caching.

Frontend Engineering

React, TypeScript, Tailwind CSS, TanStack Start, Next.js. Fast, accessible, dark-mode-first interfaces built for high conversion.

Mobile Development

Flutter (Dart) cross-platform iOS & Android apps. State management with Riverpod, offline caching, and Google Play/App Store publishing.

SEO, AEO & GEO Built-In

Technical SEO, JSON-LD structured data, speakable tags, and AEO answer engine blocks so search engines and AI assistants cite your business.

FinTech & Automation

UPI payment processing, FIFO ledger settlement systems, automated billing, and heavy dumper/fleet operations software.

DevOps & Security

Docker, Railway, Cloudflare, JWT auth, proxy-aware rate limiting, constant-time security guards, and CI/CD pipelines.

Selected Public Deliveries

MI Stones

Export · Natural stone

Mine-direct Nimbahera limestone exporter from Rajasthan, selling slabs, calibrated tiles, cladding and GCC powder into global markets under India–UAE CEPA.

UI/UX designExport-intent SEO architectureAEO answer blocksGEO for AI searchFull-stack build

Janvi Tour & Travels

Travel · Tourism

Udaipur-based tour and travel operator running day tours, custom itineraries and transport across Rajasthan.

UI/UX designLocal SEO for Udaipur intentItinerary content architectureConversion & lead flowFull-stack build

Scriza Private Limited

Technology · Software services

ISO 27001 & ISO 9001 certified web development, SEO, digital marketing and custom software company serving startups, SMEs and enterprises across India.

Product & marketing UXTechnical SEO architectureAEO / FAQ schemaGEO for generative enginesFull-stack engineering

Sky Handlers

Aviation · Ground services

Aviation services brand platform, built for credibility-first positioning and enquiry capture from operators and partners.

UI/UX designSEO architectureAEO structured answersGEO visibilityFull-stack build

Cortex Automator (Jriza)

AI · Autonomous agent platform

Autonomous AI agent platform that drives a real headless Chromium browser, executes live HTTP requests and DNS reconnaissance, and enforces an anti-hallucination rule set — multi-step planning, retries and tool-verified answers instead of guessed URLs.

Product & agent UXFull-stack platform buildBrowser automation toolingSEO / AEO architectureGEO for AI search

DumperTrack

Heavy transport · Fleet & finance SaaS

Multi-firm dumper truck operations platform for an Indian heavy transport business — trip logging, FIFO client payment settlement, driver salaries, vehicle EMI tracking and a live partner balance sheet, replacing paper ledgers and WhatsApp updates.

Product & operations UXReact + Supabase full-stack buildFinancial ledger & FIFO settlement logicMulti-firm access controlDeployment & handover

Karni Dental Hospital

Healthcare · Dental clinic portal

Patient appointment booking, treatment record management, and dental clinic platform built with custom UI/UX, SEO architecture, and Cloudflare DNS management.

UI/UX designPatient booking engineLocal SEO architectureAEO / FAQ schemaFull-stack build

Shree Balaji Motor Garage

Automotive · Repair fleet & service SaaS

Digital garage management & auto repair platform — service booking, digital job-card generation, spare parts inventory tracking, and automated SMS appointment reminders.

Product & garage UXService booking engineDigital job-card managementParts inventory trackingFull-stack build

Frequently Asked Questions

Frequently asked questions

How do I hire a freelance developer in India?: Email [email protected] or call +91-73000-03101. Every project with Karnveer Singh starts with a initial scoping conversation and a fixed first milestone to establish architecture, timeline, and cost upfront.
What tech stack does Karnveer Singh work with?: Backend: Python (FastAPI, Django), Java (Spring Boot), Node.js/NestJS. Frontend: React, TypeScript, Tailwind CSS, TanStack Router/Next.js. Mobile: Flutter (iOS + Android). Infrastructure: PostgreSQL, Redis, Docker, Railway, Cloudflare.
What is included in full-stack freelance delivery?: Complete end-to-end delivery: UI/UX design, database schema, REST/GraphQL API, web or mobile frontend, technical SEO/AEO/GEO architecture, CI/CD deployment, and handover documentation.
Can I hire Karnveer Singh for a single project or milestone?: Yes. Karnveer takes single-project engagements as well as ongoing advisory roles. Whether it is an MVP, a full web application, a mobile app, or a system refactor, work is scoped in clear fixed milestones.

Have a project in mind?

Work directly with a single senior engineer who handles architecture, code, design, and deployment without agency overhead.

Get in Touch