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करिअर रोडमॅप

Full Stack Developer roadmap

Full stack developers build both the user interface and the server, database and deployment behind it. It is ideal for startups and freelancers who want to ship complete products alone.

वेळ
⏱ 6–8 months
Level
Intermediate
Steps
6 steps
Architecture ↓Cheat sheet ↓4 interview Q&As ↓
शेअर करा

The roadmap

Click a step to open the full guide.

Best architecture: a full-stack SaaS app

A simple, production-ready stack one developer or a small team can run.

Full-stack SaaS

  1. CDN + React framework (SSR/SSG)
  2. Server routes / API · auth
  3. PostgreSQL · object storage
  4. Background jobs · email · payments webhooks
  5. Error tracking · analytics · backups

Why it's built this way

  • One framework for UI and server code keeps things simple.
  • Managed services (database, auth, storage) reduce operations work.
  • Webhooks confirm payments; never trust the browser.
  • Automatic backups and error tracking before launch.

Full Stack Developer cheat sheet

The essentials on one screen. Bookmark it for revision.

Stack choices

FrontendReact + TypeScript + a meta-framework
StylingTailwind CSS
BackendFramework server routes, or Node/FastAPI API
DatabasePostgreSQL + ORM + migrations
AuthProven library or service
Payments (India)Razorpay; Stripe internationally
FilesS3-compatible storage + CDN

Improve performance

  • Render on the server/static where possible; ship less JavaScript.
  • Optimise images and use a CDN.
  • Index database queries and avoid N+1 queries.
  • Cache API responses and use background jobs for slow work.

Security checklist

  • Validate on the server; never trust the client.
  • Keep secrets server-side only.
  • Verify payment webhooks by signature.
  • Protect against XSS and CSRF; use secure cookies.
  • Check authorisation for every data access.

Most important interview questions

Click a question to see a strong answer. Each step also has its own questions.

1What does a full stack developer do?

Builds both the user interface and the server-side logic, database and deployment of web applications.

2How would you structure a full-stack project?

By feature, with shared types and validation, a clear API layer, server-only modules for secrets and database access, and tests per feature.

3How do frontend and backend communicate?

Over HTTP APIs (REST/GraphQL) with JSON, or via framework server actions; real-time features use WebSockets or server-sent events.

4CORS म्हणजे काय?

A browser security rule that blocks web pages from calling APIs on other origins unless the server explicitly allows them.

Related रोडमॅप

6

Frontend Developer

6 steps · 4–6 months · Beginner

Build fast, accessible websites and web apps.

View roadmap →
6

Backend Developer

6 steps · 5–6 months · Intermediate

Build the APIs, databases and services behind apps.

View roadmap →
5

React

5 steps · 4–6 weeks · Intermediate

The most used library for building user interfaces.

View roadmap →
6

PostgreSQL & SQL

6 steps · 4–5 weeks · Beginner

The database most new apps choose.

View roadmap →
1

Full Stack Developer · Step 1 of 6 · 4 weeks

Web foundations

HTML, CSS, JavaScript and how the web works.

Full stack starts with the browser. Learn the fundamentals properly; they never go out of date.

Understand what happens when you type a URL: DNS, HTTP request, server response, rendering.

What you'll learn

  • HTML and CSS layouts
  • JavaScript fundamentals
  • How HTTP, DNS and browsers work
  • Git
  • Responsive design

Loading a web page

  1. Type URL
  2. DNS lookup
  3. HTTPS connection
  4. Server responds
  5. Browser renders

Key concepts

Client vs server
Client = browser/app; server = computer answering requests.
HTTP
The request/response protocol of the web.

Step by step

  1. 1.1

    HTML & CSS

    Semantic markup, Flexbox, Grid, responsive design.

  2. 1.2

    JavaScript

    DOM, events, async/fetch, modules.

  3. 1.3

    How the web works

    DNS, HTTP, HTTPS, browsers, caching.

Notes

  • Fundamentals first, frameworks second.

Tips & tricks

  • Build small static sites for friends or family.

Interview questions

What happens when you visit a website?

DNS resolves the domain, the browser opens a TLS connection, sends an HTTP request, the server returns HTML, and the browser loads CSS/JS, builds the DOM and paints the page.

The quick way to study this

Follow the first two steps of the Frontend roadmap at full speed.

Frontend Developer roadmap →
2

Full Stack Developer · Step 2 of 6 · 4 weeks

React and TypeScript

Modern interactive frontends.

Using TypeScript on both frontend and backend lets you share types and catch bugs across the stack.

Focus on the React features you will use daily: components, state, effects and forms.

What you'll learn

  • TypeScript basics
  • React components, state and hooks
  • Data fetching
  • Forms and validation
  • Styling with Tailwind or CSS modules

Frontend structure

  • app/
  • pages / routes
  • components/
  • hooks/
  • lib/api.ts
  • types.ts (shared)

Key concepts

Shared types
Same TypeScript types on client and server to catch mismatches.

Step by step

  1. 2.1

    TypeScript

    Types for props and API data.

  2. 2.2

    React

    Components, state, forms, data fetching.

  3. 2.3

    Styling

    Tailwind or CSS modules, design consistency.

Notes

  • Share validation schemas between client and server when possible.

Tips & tricks

  • Build the UI for your capstone app early with fake data.

Interview questions

How do you handle form validation in a full-stack app?

Validate in the browser for quick feedback and again on the server security, ideally using one shared schema. साठी

The quick way to study this

Build a small React + TypeScript app that reads from a public API.

React roadmap →
3

Full Stack Developer · Step 3 of 6 · 4 weeks

Backend and database

APIs, auth and SQL.

Pick Node.js to stay in one language, or Python if you also want AI work. Learn SQL and PostgreSQL, the most popular database for new apps.

Use a proven auth library or service rather than writing your own.

What you'll learn

  • Node.js or Python backend
  • REST API design
  • PostgreSQL and an ORM
  • Authentication
  • File uploads
  • Validation

Full-stack architecture

  1. Browser (React)
  2. API / server routes
  3. Database (PostgreSQL)
  4. File storage + external APIs

Key concepts

ORM
Database tables as code objects.
Object storage
Cheap, scalable storage for files and images.

Step by step

  1. 3.1

    API

    REST endpoints with validation.

  2. 3.2

    Database

    PostgreSQL with an ORM and migrations.

  3. 3.3

    Auth

    Use a proven auth library or service.

  4. 3.4

    Files

    Upload to object storage, not the database.

Notes

  • Validate on the server even if you validate in the browser.

Tips & tricks

  • Model your database before writing API code.

Interview questions

Where would you store user-uploaded images?

In object storage (S3 or similar) with a CDN, storing only the file URL/key and metadata in the database; use signed URLs for private files.

The quick way to study this

Add a real backend and database to your React app.

Backend Developer roadmap →PostgreSQL roadmap →
4

Full Stack Developer · Step 4 of 6 · 3 weeks

A full-stack framework

One framework for UI, server and routing.

Full-stack frameworks such as Next.js combine React pages with server code, routing and data loading. They let one developer build a complete product quickly.

Understand what runs on the server and what runs in the browser; it affects security and speed.

What you'll learn

  • Server rendering and static generation
  • Server actions / API routes
  • Data loading patterns
  • Caching
  • SEO basics

Pick a rendering mode

Static

  • Marketing, blogs
  • Fastest, cheapest

सर्व्हर

  • Personalised, fresh
  • Dashboards

Client

  • Very interactive
  • Editors, chat

Key concepts

SSR
HTML built on the server per request; good for SEO and fresh data.
SSG
HTML built at deploy time; fastest.

Step by step

  1. 4.1

    Rendering modes

    Static, server and client rendering per page.

  2. 4.2

    Server actions / API routes

    Mutations handled securely on the server.

  3. 4.3

    Caching

    Revalidate data at the right intervals.

Notes

  • Never expose secrets to code that runs in the browser.

Tips & tricks

  • Rebuild your app in a full-stack framework and compare.

Interview questions

How do you keep secrets safe in a full-stack framework?

Use them only in server-side code and environment variables; never import them into client components or expose them with public env prefixes.

The quick way to study this

Follow the framework's official tutorial to build its sample app end to end.

5

Full Stack Developer · Step 5 of 6 · 3 weeks

Payments, AI and real features

Features that make apps worth paying for.

Real products need payments, emails and increasingly AI features such as summaries, chat or smart search. These make your portfolio stand out.

Use test modes for payment gateways while building.

What you'll learn

  • Payments (Razorpay, Stripe)
  • Emails and notifications
  • Background jobs
  • Adding AI features with LLM APIs
  • शोधा

Safe payment flow

  1. Create order (server)
  2. Checkout (provider)
  3. Webhook to server
  4. Verify signature
  5. Mark paid
  6. Send receipt

Key concepts

Webhook verification
Check the signature so only the payment provider can confirm payments.

Step by step

  1. 5.1

    Payments

    Razorpay/Stripe in test mode; confirm with webhooks.

  2. 5.2

    Emails & jobs

    Transactional email and background jobs.

  3. 5.3

    AI feature

    Add a summary, chat or smart search with an LLM API.

Notes

  • Use webhooks to confirm payments; never trust the browser alone.

Tips & tricks

  • Add one AI feature to every portfolio project.

Interview questions

Why not trust the browser's 'payment success' message?

It can be faked. Confirm payment on the server via a signed webhook or a server-side API call to the provider.

The quick way to study this

Add payments in test mode and one AI feature to your capstone app.

AI Engineer roadmap →
6

Full Stack Developer · Step 6 of 6 · 2 weeks

Deploy, test and launch

Go live and get users.

Launching teaches more than tutorials. Deploy, add error tracking and invite real users.

Two complete apps with real users are a strong full-stack portfolio.

What you'll learn

  • Hosting front and back ends
  • Managed databases
  • End-to-end tests
  • Monitoring and error tracking
  • Domains and HTTPS

Launch checklist

  1. Tests pass
  2. Deploy
  3. HTTPS + domain
  4. Error tracking
  5. Backups
  6. Invite users

Key concepts

End-to-end test
Automates a real user flow in a browser (sign up, buy).

Step by step

  1. 6.1

    Deploy

    Frontend + backend + managed database; custom domain with HTTPS.

  2. 6.2

    Test

    Unit tests plus end-to-end tests of key flows.

  3. 6.3

    Monitor

    Error tracking, logs, uptime checks, backups.

Notes

  • Back up your production database automatically.

Tips & tricks

  • Launch on a small community and collect feedback.

Interview questions

How do you debug a production-only bug?

Check error tracking and logs, reproduce with production-like data/config, add targeted logging, fix with a test, and deploy with monitoring.

The quick way to study this

Ship your capstone app publicly this week.

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