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FLIPKART · SENIOR SOFTWARE ENGINEER (SDE 3)

Flipkart senior engineer interview

The senior software engineer (SDE 3) level at Flipkart is SDE-3, for senior engineers with about 5 to 10 years of experience. The rounds at this level, how each one is scored, and the questions to practise first.

From public candidate reports and Flipkart's careers pages, checked November 2026. Processes vary by team. AlgoRung is not affiliated with Flipkart.

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Flipkart titleSDE-3
ExperienceSenior engineers with about 5 to 10 years of experience
Interviews after screeningAbout 4
System design roundYes

The Senior Software Engineer (SDE 3) rounds, in order

  1. Low-level design / machine coding · 90 min

    Machine coding: about 90 minutes to build and submit a working app, then a 30-minute walkthrough of the code, sometimes the next day.

    At Senior Software Engineer (SDE 3): Same as SDE 2 plus concurrency (two users booking the same seat) and a clean extension story.

  2. Coding (DSA) · 45 min

    Problem Solving & Data Structures (PSDS): usually two medium problems, often DP, trees, recursion or graphs; some candidates get a second PSDS round.

    At Senior Software Engineer (SDE 3): Usually two rounds. Same difficulty, but interviewers expect quick, confident problem solving and production-quality code.

  3. System design (HLD) · 60 min

    A design round mixing LLD with some HLD for SDE-2; SDE-3 goes deep on both.

    At Senior Software Engineer (SDE 3): One or two rounds that set your level. Expected to lead, size the system and go deep on two or three hard parts.

  4. Hiring manager · 45 min

    Past projects, the architecture of your current org, and behavioral questions.

    At Senior Software Engineer (SDE 3): Technical leadership, mentoring, and how you choose what to work on.

What Flipkart interviewers look for

Coding questions to practise for Flipkart Senior Software Engineer (SDE 3)

Usually two rounds. Same difficulty, but interviewers expect quick, confident problem solving and production-quality code.

Difficulty
Topic
11 questions
  1. Longest Substring Without Repeating Characters Medium Arrays & Hashing also Amazon, Netflix, Adobe
  2. Asteroid Collision Medium Stack also Swiggy
  3. First Missing Positive Hard Arrays & Hashing also Microsoft, Walmart Global Tech
  4. Word Break Medium Dynamic Programming
  5. Cheapest Flights Within K Stops Medium Graphs also Google, Airbnb, Swiggy
  6. House Robber Medium Dynamic Programming also Adobe
  7. Trapping Rain Water Hard Arrays & Hashing also Amazon, Microsoft, Goldman Sachs +1
  8. Rotting Oranges Medium Graphs
  9. 0 - 1 Knapsack Problem Medium Dynamic Programming also Goldman Sachs
  10. Unique Paths II Medium Dynamic Programming
  11. Largest Rectangle in Histogram Hard Monotonic Stack

How the coding round is scored · The online assessment

System design at Senior Software Engineer (SDE 3)

Machine coding is the first filter for SDE-2 and SDE-3: build a small in-memory app, then defend it. SDE-2 gets an LLD-heavy design round with some HLD; SDE-3 must go deep on both and handle concurrency.

All Flipkart system design questions

Questions people ask

How many rounds are in the Flipkart Senior Software Engineer (SDE 3) interview?

About 4 interviews after the screening: low-level design / machine coding, coding (dsa), system design (hld), hiring manager.

Is there a system design round for Flipkart Senior Software Engineer (SDE 3)?

Yes. Machine coding is the first filter for SDE-2 and SDE-3: build a small in-memory app, then defend it. SDE-2 gets an LLD-heavy design round with some HLD; SDE-3 must go deep on both and handle concurrency.

What coding questions does Flipkart ask at Senior Software Engineer (SDE 3)?

The same question pool is used across levels; the bar rises with level. Most reported: Longest Substring Without Repeating Characters, Asteroid Collision, First Missing Positive, Word Break, Cheapest Flights Within K Stops.

What does Flipkart expect in coding rounds at Senior Software Engineer (SDE 3)?

Usually two rounds. Same difficulty, but interviewers expect quick, confident problem solving and production-quality code.

Senior Software Engineer (SDE 3) interviews at other companies

Senior Software Engineer (SDE 3) interview questions across all companies · Behavioral questions