System Design Interview for Freshers: What Indian Companies Actually Ask

Yes: but the expectations vary enormously by company type. Knowing which companies ask what helps you calibrate your preparation.

• TCS/Infosys/Wipro (service IT): do not typically ask system design for freshers: focus on OOP and DBMS instead
• Flipkart/Swiggy/Zomato entry-level: may ask a simplified design question in the technical round
• FAANG India (Google, Amazon, Microsoft, Meta): some entry-level roles do include system design, but at a lower bar
• Startups (Series A–C): increasingly ask system design even for freshers, especially in backend roles
• Rule of thumb: if the job description mentions 'distributed systems' or 'scale', expect some design discussion

For freshers, system design interviews test conceptual understanding and structured thinking: not production experience. These are the core areas.

• Client-server model: what happens when you type a URL in a browser: DNS, HTTP, server, DB
• Database basics: when to use SQL vs NoSQL, what indexes do, primary vs foreign keys
• Caching: what a cache is, cache hit vs miss, when to use Redis
• Load balancers: why they exist, round-robin vs least-connections
• APIs: REST vs GraphQL at a high level, what a rate limiter does
• Scaling concepts: horizontal vs vertical scaling, what a CDN does

Having a repeatable framework prevents you from blanking out mid-answer. Use this four-step approach for any system design question as a fresher.

• Step 1: Clarify requirements: functional (what it should do) and non-functional (scale, latency)
• Step 2: Estimate scale: users per day, reads vs writes per second, data stored: rough numbers are fine
• Step 3: Define the high-level components: client, API server, database, cache, optional queue
• Step 4: Discuss one area more deeply: pick what you know best: database schema, API design, or caching strategy

These are questions that have appeared in fresher and early-career interviews at Indian product companies.

• 'Design a URL shortener like bit.ly': tests hashing, database, redirect logic
• 'Design a simple note-taking app backend': tests CRUD API design and data modelling
• 'How would you store and retrieve 10 million user profiles efficiently?'
• 'Design the backend for a leaderboard in a gaming app'
• 'How does Instagram serve a photo to 1000 users simultaneously?': tests CDN and caching intuition

The best way to learn system design as a fresher is to study real systems, not just theory. Here is a concrete learning path.

• Week 1–2: System Design Primer (GitHub, free): covers all the core building blocks clearly
• Week 3–4: ByteByteGo newsletter (free tier): visual explanations of real systems like Instagram, Uber, Netflix
• Build something: create a simple REST API with a database, add a Redis cache: first-hand experience beats 10 tutorials
• Watch: 'Gaurav Sen' and 'Tech Dummies' on YouTube for system design explained for beginners
• Practice: explain any system you have used (Zomato, GPay) as if designing it from scratch: out loud