Interview experience
BigBasket Interview Questions
Overview
Section titled “Overview”BigBasket’s fresher SDE loop is a 3-4 stage process where DSA and SQL fundamentals are consistently framed around grocery/e-commerce scenarios - inventory, catalog, and order management - rather than abstract textbook prompts.
BigBasket interview process at a glance
Section titled “BigBasket interview process at a glance”| Round | Duration | What they test |
|---|---|---|
| Online Assessment | ~60 min | DSA problems, SQL queries, API-design based questions |
| Technical Interview 1 | 45-60 min | DSA/coding, problem-solving |
| Technical Interview 2 | 45-60 min | Project deep-dive, hands-on frontend/backend experience |
| HR Interview | 20-30 min | Background, fit, role/location expectations |
Online Assessment
Section titled “Online Assessment”A roughly 60-minute screening test mixing DSA, SQL, and API-design questions - the first filter before any human interview.
Common questions
- Sliding-window and two-pointer array/string problems
- Design or reason about an LRU cache
- SQL joins and aggregation queries (e.g. top-selling products by category)
- Basic API-design/authentication concepts (JWT, REST conventions)
Technical Interview 1
Section titled “Technical Interview 1”A DSA-focused round with a tech panel member, frequently framing standard algorithmic problems around BigBasket’s actual domain - inventory, catalog, and order flows.
Common questions
- Sliding-window or two-pointer problems reframed as an inventory/catalog scenario
- Design a data structure for order-tracking or cart management
- Time/space complexity trade-offs and edge cases on your solution
Technical Interview 2
Section titled “Technical Interview 2”Shifts from algorithms to a hands-on project deep-dive - expect detailed questions on your actual frontend/backend work rather than new coding problems.
Common questions
- Walk through your most complex project’s architecture and your specific contribution
- Frontend or backend implementation details relevant to your resume stack
- What would you change or rebuild if you did the project again?
Round-by-round narratives are on the BigBasket interview experience page.
HR Interview
Section titled “HR Interview”A closing 20-30 minute conversation on background, motivation, and fit - often includes a lightweight system-design sketch relevant to grocery delivery.
Common questions
- Tell me about yourself, and why BigBasket?
- Walk through the design of a feature you’d build for a grocery-delivery or inventory system
- Tell me about a time you optimized something for scale or performance under real-world constraints
- Location and role expectations
Sample answer frameworks for each of these are on the BigBasket HR interview questions page.
Frequently asked questions about BigBasket interviews
Section titled “Frequently asked questions about BigBasket interviews”What is the BigBasket interview process for freshers?
BigBasket typically runs 3-4 rounds for SDE roles: 1. Online Assessment (about 60 minutes) - a mix of DSA problems, SQL queries, and API-design based questions, used as a screening round. 2. Technical Interview 1 (45-60 minutes) - DSA/coding and problem-solving with a tech panel member. 3. Technical Interview 2 (45-60 minutes) - more project-heavy, focused on hands-on frontend/backend experience. 4. HR Interview (20-30 minutes) - background, fit, and role/location expectations.
What questions are asked in BigBasket interviews?
Expect DSA patterns like sliding window, two pointers, and LRU caching, SQL joins and aggregations, and API/system-design basics like authentication and JWT. Because BigBasket runs a large-scale grocery e-commerce and delivery platform, interviewers often frame problems around inventory, catalog, or order-management scenarios rather than abstract examples.
How many rounds are there in the BigBasket interview?
Most BigBasket SDE drives run 3-4 rounds: an Online Assessment as a screening step, one or two Technical Interviews, and an HR round. Some experiences report the two technical rounds split as one algorithmic and one project/hands-on focused round.
What is the BigBasket technical interview like?
Technical Interview 1 (45-60 min) is DSA-focused - sliding window, two-pointer, and LRU-cache-style problems, often framed around a grocery/e-commerce scenario (inventory, catalog search) rather than an abstract prompt. Technical Interview 2 shifts to a project deep-dive and hands-on frontend/backend questions, testing whether you actually built and can defend what’s on your resume.
How should I prepare for BigBasket interviews?
Practice DSA patterns (sliding window, two pointers, LRU) and revise SQL joins/aggregations for the OA, and be ready to talk through the design of a feature relevant to e-commerce or grocery-tech - inventory, search, or order fulfillment are common framing devices. Know your projects well enough to discuss real trade-offs in the hands-on/project round.
Who owns BigBasket, and does that affect hiring?
BigBasket has been majority-owned by the Tata Group (via Tata Digital) since a 2021-2022 acquisition, and now operates as part of Tata’s broader digital/retail ecosystem alongside Tata Neu. This mainly affects backend integration priorities (Tata Neu tie-ins) rather than the fresher SDE interview format itself, which stays focused on DSA, SQL, and hands-on project depth.