Bajaj Finserv Coding Questions 2025-2026 | Placement Interview Problems with Solutions

Bajaj Finserv’s coding round evaluates DSA and programming skills for fintech and digital roles. The process usually includes an online assessment or technical interview with 1–2 coding problems (easy to medium) on arrays, strings, and basic data structures. They value correct, readable code and logical approach. Practice standard DSA problems and time yourself to match the test environment.

Bajaj Finserv Coding Round at a Glance

Format: OA or technical round with 1–2 coding problems. Difficulty: Easy to medium. Topics: Arrays, strings, hash maps, basic DSA. Focus: Correctness, logic, and code clarity.

Coding Questions - Complete Problem Set

Practice coding interview questions with solutions.

Arrays & Strings

1. Two Sum

def two_sum(nums, target):
    seen = {}
    for i, num in enumerate(nums):
        if target - num in seen:
            return [seen[target - num], i]
        seen[num] = i
    return []

2. Valid Parentheses

def is_valid(s):
    stack = []
    mapping = {')': '(', '}': '{', ']': '['}
    for char in s:
        if char in mapping:
            top = stack.pop() if stack else '#'
            if mapping[char] != top:
                return False
        else:
            stack.append(char)
    return not stack

3. Reverse String

def reverse_string(s):
    return s[::-1]

4. Palindrome Check

def is_palindrome(s):
    s = ''.join(c.lower() for c in s if c.isalnum())
    return s == s[::-1]

5. Merge Intervals

def merge(intervals):
    intervals.sort(key=lambda x: x[0])
    merged = []
    for interval in intervals:
        if not merged or merged[-1][1] < interval[0]:
            merged.append(interval)
        else:
            merged[-1][1] = max(merged[-1][1], interval[1])
    return merged

6. Maximum Subarray

def max_subarray(nums):
    max_sum = current_sum = nums[0]
    for num in nums[1:]:
        current_sum = max(num, current_sum + num)
        max_sum = max(max_sum, current_sum)
    return max_sum

7. LRU Cache

from collections import OrderedDict

class LRUCache:
    def __init__(self, capacity):
        self.cache = OrderedDict()
        self.capacity = capacity

    def get(self, key):
        if key not in self.cache:
            return -1
        self.cache.move_to_end(key)
        return self.cache[key]

    def put(self, key, value):
        if key in self.cache:
            self.cache.move_to_end(key)
        self.cache[key] = value
        if len(self.cache) > self.capacity:
            self.cache.popitem(last=False)

Company-Specific Focus Areas

Bajaj Finserv tends to test arrays (two sum, subarray, sorting), strings (validation, manipulation), hash maps (frequency, lookup), and stacks/queues (e.g. valid parentheses, simple queue logic). Fintech roles may also touch basic logic and number handling. Prioritize clean code and edge cases; aptitude or technical MCQs may be part of the same selection process.

Related Resources

Interview Experience

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Preparation Guide

Complete preparation strategy.

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Practice these problems with focus on arrays, strings, and hash-based solutions for Bajaj Finserv’s coding round.

Last updated: February 2026