sr.dev / claude
Model: Claude · Anthropic · sr.dev
Open for work
Fullstack Developer · Chennai, India

Sriram
Kumar

I'm 18, based in Chennai, studying AI/ML — and I build complete digital products for businesses that actually need to work. Not just look nice.

Auth systems, AI chatbots, Razorpay payments, admin panels, security hardening. From zero to launch.

15+
Projects shipped
4
Service tiers
48h
Response time
100%
Client satisfaction
Auth Systems
Claude AI Chatbots
Razorpay Payments
Admin Panels
Security & APIs

What I build

02 / 07
01
Authentication
OAuth with Google & GitHub, JWT sessions, 2FA, role-based access. Not the copy-paste kind — properly hardened from day one.
OAuth 2.0JWT2FARBAC
Tier I +
02
AI Chatbot
Claude-powered, trained on your business. Handles bookings, FAQs, lead capture — 24/7 without you lifting a finger. RAG so it actually knows your stuff.
Claude APIGPT-4RAGEmbeddings
Tier II +
03
Payment Gateway
Razorpay, Stripe, PhonePe — the full thing. Webhooks, invoices, subscriptions, refunds, UPI. Built for Indian businesses, works internationally too.
RazorpayStripeUPIWebhooks
Tier II +
04
Admin Panel
Custom dashboard built for your exact workflow. Real-time analytics, user management, order tracking, CMS, export. Not a template you fight with.
Real-timeAnalyticsChartsCSV export
Tier II +
05
Website Build
Full site from scratch. Restaurants, clinics, coaching, e-commerce. Mobile-first, fast, no templates. Every element placed with intent.
Next.jsReactSEOAnimations
All tiers
06
Security & APIs
DDoS mitigation, WAF, injection blocking, Cloudflare CDN, OWASP hardening. REST APIs, WebSockets, third-party integrations.
DDoSWAFCloudflareOWASP
Tier III +
© 2025 Sriram Kumar

Rate Sheet

Transparent pricing. No hidden fees. Pick a tier or talk custom.

03 / 07
I
Tier I
Foundation
A converting site with real login infrastructure. For businesses going online for the first time.
₹3K–₹5K
$45 USD · International
  • Custom site, mobile-first
  • OAuth + JWT auth
  • Basic SEO + sitemap
  • Contact form + WhatsApp
  • Vercel deploy · 5–10 days
  • 2 revisions · 14d support
  • Payment gateway
  • AI chatbot
Start project →
III
Tier III · Enterprise
Enterprise
Full infrastructure. Automation, hardened security, multi-platform growth campaigns.
₹15K–₹55K
Custom · 3–8 weeks
  • Everything in Professional
  • Automated email system
  • Order tracking system
  • DDoS, WAF, injection protection
  • Cloudflare DNS + CDN
  • Ad campaigns: Meta + Google
  • Uptime monitoring + alerts
Discuss scope →
IV
Tier IV · Restricted
Sovereign
Zero-compromise privacy. For clients who need complete operational sovereignty and data confidentiality.
On Request
Crypto accepted · Private consult
  • Zero-log infrastructure
  • Onion routing (Tor)
  • E2E encrypted chat
  • Private crypto wallets
  • SLIP-39 seed encryption
  • Full operational guide
  • Dedicated private server
Request consult →

Private only. Identity verification required.

50% upfront · 50% on delivery · UPI / bank / crypto

Recent work

Real clients, real businesses. Scroll →

04 / 07
Healthcare · Fullstack
MedBook
Doctor appointment platform with a Claude AI triage chatbot, calendar sync, Razorpay billing, and a real-time admin panel. Patients book 24/7. Clinic staff see everything in one place.
ReactNode.jsClaude AIMongoDBRazorpay
View project →
F&B · Premium Site
Kerala Parotta Kadai
Premium restaurant site with live menu, table reservation, WhatsApp ordering. Reached #1 on Google Maps within 60 days. Owners get booking notifications directly on WhatsApp.
ReactTailwindWhatsApp APISEO
View project →
Digital Agency · Brand
TS Editors Media
Cinematic portfolio for Chennai's top video editing studio. Full animated hero, service pages, WhatsApp lead capture. Live and getting clients from day one.
HTML/CSS/JSAnimationsSEO
Live site →
Your Business
Next in line?
Most builds start within 48 hours of the first call. I typically have 1–2 open slots per month. Reach out and let's see if it's a fit.
Start now →
← scroll for more projects

How it works

05 / 07
React / Next.js Node.js Claude AI Razorpay MongoDB PostgreSQL Vercel Cloudflare OAuth 2.0 TypeScript Docker React / Next.js Node.js Claude AI Razorpay MongoDB PostgreSQL Vercel Cloudflare OAuth 2.0 TypeScript Docker
01
Discovery
30-minute call. We map your goals, audience, what success actually looks like. This single conversation saves weeks of building the wrong thing.
→ brief + scope doc
02
Architecture
Tech stack, wireframes, database schema, security model, milestone timeline. You approve everything before I write a single line of code.
→ technical spec
03
Build
Weekly check-ins with live preview links. Feedback goes in within 24 hours. No big surprise reveal at the end — you see it grow.
→ preview URL weekly
04
Launch
Production deploy, DNS config, SEO setup, performance audit, full handover. Post-launch support included — not an extra charge.
→ live site + docs
Most projects kick off within 48 hours
06 / 07 · A bit about me
"I'm not a big agency with account managers and decks. I'm one person who cares about your business and knows how to build the tech it needs."
Sriram Kumar, Developer
Based in
Chennai, Tamil Nadu — available remote worldwide
Currently
18 years old, studying AI/ML at university, taking freelance projects alongside
Communication
Direct. You talk to me, not an assistant. Response within 4 hours on WhatsApp
Payment
50% upfront, 50% on delivery. UPI, bank transfer, or crypto for Tier IV
Past work
Healthcare booking app, restaurant chains, digital agency portfolios, textile e-commerce
Tech I work with daily
ReactNext.js Node.jsClaude AI ExpressTypeScript RazorpayStripe MongoDBPostgreSQL RedisTailwind JWT / OAuthVercel CloudflareDocker NginxAWS FirebaseWebSockets
15+
Projects shipped
100%
On-time delivery
0.8s
Avg page load
96+
Lighthouse score
Let's
build
it.

Most projects start within 48 hours of the first message. Tell me what you're building and I'll tell you if I can help — no commitment, no sales call required.