Full-stack SaaS development
Full-stack SaaS development, from first commit to paying customers
A SaaS product is more than its main feature. It needs sign-up, roles, billing, emails, background jobs, an admin view and a deployment you can trust. I build all of it, end to end.
I have shipped Slotly, a booking marketplace where PostgreSQL itself prevents double-bookings; Shotsmith, a generative-AI product studio with a credit ledger that refunds failed jobs; and Stackboard, a real-time collaborative board. I work as a freelance full-stack developer from Delhi, India, with clients worldwide.
Problems I solve
An MVP that needs to become a product
Prototypes often skip auth, billing and data integrity. I build those foundations properly from the start.
Payments that go out of sync
Missed webhooks strand paying users. I verify signatures and reconcile with Stripe or Razorpay so billing state stays correct.
Race conditions and bad data
Double-bookings and double-charges come from concurrency. I enforce critical rules in the database, not only in code.
Too many freelancers for one product
Separate frontend, backend and DevOps contractors slow everything down. One engineer owns the whole stack.
What I build
- Frontend
- Next.js, Nuxt, React or Vue with TypeScript and Tailwind CSS, responsive and accessible.
- Backend and APIs
- FastAPI, Node.js, Laravel or .NET with REST or GraphQL APIs, WebSockets and SSE for real-time features.
- Data
- PostgreSQL with Drizzle or SQLAlchemy, migrations, and constraints that protect your data.
- Auth and multi-tenancy
- Email, Google and other OAuth providers, roles and permissions, tenant isolation.
- Billing
- Stripe or Razorpay subscriptions and one-off payments, signed webhooks, invoices including GST.
- Jobs, email and deployment
- Inngest background jobs, transactional email with Resend, Docker, Vercel or AWS deployments with CI/CD.
Related work
Multi-vendor appointment marketplace
Slotly
A booking marketplace for salons, clinics and consultants where the database itself makes double-booking impossible.
Read the case study →
ShopShot AI · Generative e-commerce product studio
Shotsmith
Turns one raw product photo into marketplace-ready images and multilingual ad copy: cut-outs, AI scenes, magic edits, upscaling and one-click exports.
Read the case study →
Real-time task board with an AI agent
Stackboard
A real-time collaborative task board with an AI agent that plans changes and asks before it applies anything.
Read the case study →
Anti-scam & citizen cyber emergency portal
Thagi Alert
India's independent anti-scam portal: AI screenshot checks, a fund-freeze assistant and bots, in 8 Indian languages.
Read the case study →
How we'll work
Step 1
Scope the first release
Agree the smallest version customers will pay for, and what comes after.
Step 2
Foundations first
Auth, data model, billing and deployment pipeline in the first milestone.
Step 3
Features in weekly demos
Each week a working build on a preview URL you can click and share.
Step 4
Launch and handover
Monitoring, documentation, tests and a walkthrough for your team.
Technology
- Next.js
- Nuxt
- React
- Vue
- TypeScript
- FastAPI
- Laravel
- Node.js
- .NET
- PostgreSQL
- Redis
- Stripe
- Razorpay
- Inngest
- Docker
- Vercel
- AWS
Frequently asked questions
Do you build both frontend and backend?
Yes. I build the whole product: frontend, backend, database, billing, background jobs and deployment, so there is one person accountable for it working.
Which tech stack do you recommend?
Most often Next.js with a FastAPI or Node.js backend and PostgreSQL. If you already have a stack, such as Laravel, Vue or .NET, I work within it.
Can you integrate Stripe or Razorpay?
Yes, including subscriptions, signed webhooks, reconciliation for missed events and GST-compliant invoices for Indian customers.
Do you work with clients outside India?
Yes. I work remotely with clients in the United States, the UK and Europe, with calls scheduled to suit your time zone and weekly demos.
Will I own the code?
Yes. Code lives in your repository from day one, and you receive documentation and a handover walkthrough.
Tell me what you're building
A short description of the problem and your data is enough. I'll reply with questions and a time for a call.
Start a project