Flipkart SDE-1 vs SDE-2 vs SDE-3 Interview: What Each Level Is Tested On (Prep Checklist)
Flipkart has a catch most companies don't: the machine coding round, where you build a small working app in about 90 minutes. Find your level, tick the boxes, and practise on the InterviewSkool pages linked in each section.
Pay at Each Level (Flipkart India)
| Level | Rounds you often see | Typical total pay / year | Main thing they test |
|---|---|---|---|
| SDE-1 | Machine coding, a DSA round, hiring manager chat | ≈ ₹22 L | Working code, cleanly written |
| SDE-2 | Machine coding, medium DSA, often low-level design | ≈ ₹36 L | Code structure that is easy to extend |
| SDE-3 | Machine coding, bigger system design, hiring manager | ≈ ₹57 L | Design trade-offs and what you led |
| SDE-4 | Not covered here | ≈ ₹79 L | For the curious |
Median total pay per year from levels.fyi for Flipkart India, last updated 6 Nov 2026. "Total pay" means salary + bonus + stock. Your offer can be higher or lower by team, city and stock.
Why this matters: SDE-3 pays about 2.5 times SDE-1 (₹57 L vs ₹22 L). If you prepare for SDE-3 the way you'd prepare for SDE-1, you may get an SDE-1 offer, about ₹35 L a year less. The level depends on how you answer, not just whether your code runs.
How the Flipkart Loop Works (All Levels)
- Machine coding round: usually the first round. You get a problem statement and about 90 minutes (some people report up to 2 hours) to build a small working app. You are often asked to walk through your code afterwards. It is judged on working code and structure: separate classes, easy to extend.
- DSA and design rounds: a data structures round, and often a low-level design round (low-level design = which classes you need and how they connect), not only "scale it to a million users" design.
- Hiring manager (HM) round: a chat about your past projects. Candidates report that a "not positive" HM view can end the loop even after good technical rounds.
- Good to know: Flipkart does not publish its loop. These patterns come from candidate posts (2021 to 2026), so rounds vary by team and level. Flipkart has no Leadership Principles list; the story round is about your projects.
Start here on InterviewSkool:
- A step-by-step prep planner built around your dates (sign in first): prep planner
- Questions candidates report for Flipkart: coding · system design
SDE-1 Checklist: Working Code, Cleanly Written
What they check: can you build a small app that works, and solve a data structures problem? Most SDE-1 reports include machine coding, plus a DSA round and a hiring manager chat about your projects.
- I can build a small working app from a problem statement in about 90 minutes.
- I split my code into separate classes (for example one for data, one for rules, one to run it), not one giant file.
- I solve medium problems on arrays, hash maps, binary search and BFS/DFS in about 30 minutes, out loud.
- I run and test my app with a few inputs, including an edge case (empty input, duplicates).
- I can explain every line of my code in a short walkthrough.
- I can describe one project I built: what it did, what I wrote myself, and one thing that went wrong.
Practise on InterviewSkool (free):
- 9 Flipkart coding questions (2 easy, 6 medium, 1 hard), all free to browse with no sign-up
- Full DSA problem list by topic
- Topic guides: arrays & strings · hash maps · binary search · BFS vs DFS · two pointers
- Talking about your projects: tell me about yourself
Red flag: one huge file where everything is mixed together, or an app that crashes on the first odd input.
SDE-2 Checklist: Structure That Grows
What they check: machine coding again, but now the structure matters a lot. Then medium DSA, and often a low-level design round. Reported machine coding prompts include a task scheduler or a group expense app (not a fixed list).
- All the SDE-1 boxes above, done faster, with fewer hints.
- I can turn a vague problem into classes with clear jobs in the first 10 minutes, before I type code.
- I can add a new feature (a new rule or a new type) without rewriting old code. Interviewers often ask for exactly this.
- I use simple patterns only when they help (for example, an interface so a rule can be swapped), and I can say why.
- In low-level design I can draw the classes, what each one owns, and how they talk to each other.
- I can solve medium DSA problems in 30 minutes and explain the time cost.
- I can describe a project I owned: the problem, my design choices, the result, and what I'd change.
Practise on InterviewSkool (free):
- 4 distinct system design problems candidates reported for Flipkart (Sept 2025 – Sept 2026), such as a LeetCode-like platform and a quick-commerce app
- Case studies to try out loud: online judge (LeetCode) · job scheduler · product catalog · car reservation · coffee ordering (all at system design case studies)
- Building blocks: what is system design · caching · message queues · SQL vs NoSQL
- Stories about work you owned: tell me about a time
Red flag: code that works, but adding one new feature means changing five places. Or "we built it" with no sign of what you did.
SDE-3 Checklist: Design and What You Led
What they check: machine coding still usually comes first. Then bigger system design with trade-offs, and a hiring manager who digs into what you led. SDE-3 reports are thinner, so treat this level as less certain than the others.
- I finish the machine coding app with clean, extensible structure and still have time to test it.
- In design rounds I drive: I list requirements, pick the hardest part, and go deep without being asked.
- For every big choice I give two options and why I picked one (for example "strong vs eventual consistency").
- I talk about many users at once: two people buying the last item, retries causing duplicate orders, a hot product page.
- I can describe a project I led: who was involved, what I decided, what went wrong, and the result with a number.
- I have a story where I disagreed with a plan and what happened next.
- I have a story about helping other engineers grow, or fixing a production problem.
Practise on InterviewSkool (free):
- Flipkart-style case studies with deep dives: e-commerce website · faceted product search · payment system · food delivery · duplicate requests · perishable inventory
- Trade-off guides: CAP theorem · sharding · load balancing · rate limiting
- Leadership stories: showing leadership in interviews
Red flag: a neat diagram with no trade-offs, or a project story where you only did your own tasks. One weak hiring manager answer can end a loop, candidates say.
How to Practise Machine Coding
- Pick a problem of the reported kind: a task scheduler, a group expense app, a parking lot, a food-order app.
- Timebox 90 minutes with a real timer. Spend the first 10 minutes on a list of classes and what each one does.
- Separate the classes into their own files: data, rules, and the part that runs it. No giant file.
- Run it with a few real inputs and an edge case. Working code comes first; polish comes second.
- Extend it: add one new rule without breaking the old ones. Then explain your code out loud in 5 minutes.
InterviewSkool does not have a machine-coding page yet, so use the DSA and case-study pages above for the rest of your prep, and the timed practice in the plan below.
Your Hiring Manager Story Bank
Write 6 stories from your own projects and reuse them. Each one should fit the STAR shape: Situation → Task → Action (what you did) → Result (with a number). Hiring managers usually probe your past projects, so pick the right size of story for your level.
| Theme | SDE-1 story | SDE-2 story | SDE-3 story |
|---|---|---|---|
| A project you built | A college or intern project, what you wrote | A feature you owned, launch to results | A system you led across people or teams |
| A hard technical problem | Found the real cause of a bug | Debugged a hard production issue | Fixed a root cause after an outage |
| A design choice | Why you picked one data structure | Two designs, why you chose one | A trade-off that changed the plan |
| A disagreement | Disagreed with a teammate, politely | Disagreed with your lead, with data | Changed another team's plan |
| Helping others | Helped a new joiner | Mentored an intern | Grew engineers, ran interviews |
| Why Flipkart | Why this company, in your words | Why this team and its problems | Why this scope and what you'd change |
Full guides: behavioral questions · tell me about yourself · why this company
Quick Self-Check: Which Level Are You Ready For?
| Question | SDE-1 | SDE-2 | SDE-3 |
|---|---|---|---|
| Can you build a small working app in about 90 minutes? | must | must | must |
| Is your code in separate classes, easy to extend? | nice | must | must |
| Can you solve a medium coding problem in 30 min, out loud? | must | must | must |
| Can you draw the classes for a low-level design problem? | – | must | must |
| Do you give 2 options and a reason for every big design choice? | – | nice | must |
| Can you talk about a project you led, with numbers? | – | nice | must |
If you can't tick every must for the level you're applying to, that's your prep list. Go back to that level's section above.
A Simple 4-Week Plan
| Week | SDE-1 | SDE-2 / SDE-3 |
|---|---|---|
| Week 1 | Build 2 small apps in 90 minutes each; 5 Flipkart easy + medium questions | Build 2 machine coding apps; focus on classes and extending them |
| Week 2 | The other Flipkart questions: BFS/DFS, binary search; write 3 project stories | Medium DSA; 2 case studies out loud (job scheduler, product catalog) |
| Week 3 | Timed: 1 machine coding app + 1 DSA problem in one sitting | Case studies: e-commerce, payment system; write your led-project and disagreement stories |
| Week 4 | 2–3 full mock interviews | 2–3 full mock interviews at your target level |
Want a plan built around your own dates and weak spots? Sign in first and use the InterviewSkool prep planner.
Test Yourself at Your Level Before Flipkart Does
The fastest way to find out which level you're at is a real practice interview. On InterviewSkool you can do a mock interview with Alex, our AI interviewer: coding mocks, and system design mocks at SDE-2, SDE-3 or Staff level, with a score out of 100 and feedback on exactly what kept you from the next level. Your first demo interview is free. Flipkart questions: coding · system design
Pay figures are levels.fyi median total pay for Flipkart India (page updated 6 Nov 2026) and change over time. Interview details come from self-reported candidate posts, not from Flipkart; loops vary by team and level. InterviewSkool is not affiliated with Flipkart, and this is not an official Flipkart document.