The short answer
A Flipkart-style mock interview is a practice round shaped like the SDE interviews candidates commonly report at Flipkart: a machine coding round where you build a small working system in about 90 minutes, a problem-solving round on data structures, a design round and a hiring-manager round. On Revvox each round is 60 minutes live with an experienced engineer, scored 1 to 5 on five skills, with a written report within 24 hours. We are not affiliated with Flipkart and do not claim our interviewers work there.
What a Flipkart-style loop usually includes
Flipkart does not publish a detailed interview guide, so this description comes from what candidates commonly report; treat it as the usual shape, not a fixed rule. For SDE roles, the process typically includes a machine coding round, one or two problem-solving rounds on data structures and algorithms, a design round, and a round with the hiring manager.
The machine coding round is the one people talk about most. You get a short problem statement, such as a booking system or a small library tool, with a list of requirements, and build a working, modular program in your own editor in roughly 90 minutes. Interviewers then read the code and ask you to extend it. They care about clean structure, separation of concerns and whether a new requirement fits without a rewrite, more than about clever algorithms.
Problem-solving rounds are medium to hard data structures questions. The design round is low-level design for SDE I, and often system design for SDE II and above. The hiring-manager round covers your projects, your choices and how you work. Details differ by role and level; your recruiter has the specifics.
How it is scored
After the 60-minute round, the interviewer marks each line below 1 to 5 in your written report, due within 24 hours, with notes on what you said and wrote behind each mark. The verdict is one of Strong hire, Hire, Lean hire, Lean no hire or No hire.
| Skill (1 to 5) | What the interviewer looks for |
|---|---|
| Requirements | You read the requirements carefully, confirm the ambiguous ones and pick a sensible subset to build first. |
| Object model | Clear models and services, each with one job, and storage kept behind an interface. |
| Design patterns | Patterns such as strategy or factory where a requirement calls for them, not for show. |
| Extensibility | A new requirement added during the review fits in a few lines. |
| Communication | You walk the interviewer through the code and defend your choices. |
| Skill (1 to 5) | What the interviewer looks for |
|---|---|
| Problem solving | You reach an optimal approach for medium to hard problems and explain why it works. |
| Code quality | Complete, readable code with sensible names. |
| Testing and edge cases | You test boundaries and large inputs without being asked. |
| Complexity | Correct cost analysis, and a reason to choose one approach over another. |
| Communication | Clear reasoning out loud from start to finish. |
| Skill (1 to 5) | What the interviewer looks for |
|---|---|
| Requirements and estimates | You scope an e-commerce style problem and size it for sale-day peaks. |
| High-level design | A clear set of services and a request path for the main flows. |
| Data and storage | Storage chosen for each access pattern, with inventory and orders kept consistent. |
| Scale and trade-offs | You plan for sudden spikes, failures and retries, and say what you trade for speed. |
| Communication | You drive the design and handle pushback calmly. |
Practice questions in a Flipkart style
Written by us in the style of these rounds, not taken from real interviews. The machine coding problems are trimmed to fit a 60-minute mock.
- Machine coding: build a meeting room booker. Rooms have capacities; users book slots; overlapping bookings are refused; list a user's bookings.Clean models and services, a working program early, and an easy path to add recurring bookings.
- Machine coding: build a simple wallet with add money, pay another user and a statement, with offers that give cashback.Separating the offer rules so a new offer is a new class, not a new if-statement.
- Machine coding: build a cab allocation tool that assigns the nearest free driver to a rider.A pluggable matching strategy and clean state changes for drivers and trips.
- Given a sorted matrix of 0s and 1s by row, find the row with the most 1s.A staircase walk from a corner, and why it beats binary search on every row.
- Find the minimum number of platforms needed for a train timetable.Sorting arrivals and departures, or a sweep line, with a clear cost.
- Design a flash sale system where a limited stock sells out in minutes.Inventory reservation, queueing buyers, preventing oversell and handling payment failures.
- Tell me about the most complex part of a project you built and a decision you would change.Depth on your own work and honest reflection.
How to rehearse it with a Revvox package
Most people take the Standard package: three 60-minute rounds. A 60-minute round fits a trimmed machine coding problem with a code review at the end, which is the part most people never practise. You get a report after every round.
- Round one: machine coding. A small system to build with a short list of requirements, then a code review and one new requirement.
- Round two: problem solving. One or two data structures problems with a focus on the optimal approach and clean code.
- Round three: design. Low-level design of classes, or system design for SDE II and above.
How to prepare
- Build three or four small systems end to end in 90 minutes each, in the language you will use: a parking lot, a meeting room booker, a wallet, a cab allocator.
- Keep a clean structure: models, services and a simple in-memory store, with the input handling separate.
- Make the code run early, then add requirements. A working subset beats an unfinished whole.
- Practise data structures at medium to hard level: trees, graphs, heaps, binary search and dynamic programming.
- Prepare to explain one of your projects in depth for the hiring-manager round.
Common mistakes in Flipkart-style rounds
- Putting everything in one file or one class in the machine coding round.
- Spending the first hour on design diagrams and finishing with code that does not run.
- Hard-coding values that the next requirement will change.
- Treating the hiring-manager round as a formality.