Top 11
Prep plan
~1h total · Updated weekly · Last refresh Aug 9

Airtel Digital Backend Engineer Interview Questions

The questions to prepare for a Airtel Digital Backend Engineer interview. Questions from real interview reports rank first. Updated weekly.

API Rate Limiting DesignMedium

Tests your ability to design robust API controls with correct behavior under load.

system designapirate limiting
AAirtel Digital
Find String Permutation
Medium

Assesses your approach to generating or counting permutations and handling edge cases efficiently.

string manipulation
AAirtel Digital
Maximum Subarray Sum Variant
Medium

Tests your ability to reason about and implement array DP or prefix-sum style solutions.

Dynamic Programming
AAirtel Digital
Build REST Controller and Security
Medium

Evaluates your practical backend skills with Spring Boot, security basics, and collection processing.

AAirtel Digital
More Coding questions with a free account
Ensure Data ConsistencyHard

Tests your understanding of consistency models, distributed transactions, and practical trade-offs.

distributed systemsdata consistencyarchitecture
AAirtel Digital
High-Concurrency URL Shortener
Hard

Assesses your system design for high throughput, storage, and reliability under heavy load.

system design
AAirtel Digital
Design Database Schema
Hard

Assesses your skills in modeling data and designing schemas for high write and read throughput.

system designdatabase design
AAirtel Digital
More System Design questions with a free account

Sign up to see every question

Create a free account to unlock this list and practice real interview questions.

Get my prep plan
Optimize a Slow SQL Query
Hard

Tests performance troubleshooting skills including query plans, indexing, and execution strategies for Aig - American International Group workloads.

Window FunctionsJoinsAggregations
AAirtel Digital