Salesforce Interview Questions
Practice 60 real Salesforce interview questions for 2026. Covers all top categories — Coding & Algorithms, System Design, Software Engineering Fundamentals, Behavioral & Leadership, and ML System Design — across Software Engineer, Machine Learning Engineer, and Backend Engineer roles. Real questions from actual interviews with detailed solutions. This collection is built for focused interview preparation: expect coding-heavy OA problems and live coding, a strong system-design component, and behavioral rounds tied to ownership and collaboration. For Software Engineers (44 questions) the recurring technical themes are clear: two online-assessment coding problems plus common data-structure and JavaScript implementation tasks, LFU/LRU cache design, interval/scheduling puzzles (maximize events attended), backend tradeoffs like DynamoDB vs MySQL and configurable monthly API rate limiting, scalable notification and short-video (TikTok-like) platform designs, Kubernetes pipeline orchestration, and behavioral prompts on ownership, conflict, and failure recovery. Machine Learning Engineer questions emphasize collaborative spreadsheet backends, ML and LLM fundamentals, and concurrent site crawling. Backend Engineer questions focus on low-level control and analytics systems such as Elevator Control System and Chat Analytics backends. Use timed OA practice, system-design sketches, and STAR-based stories for interview preparation.
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Design cloud & k8s architecture
Design cloud & k8s architecture Technical Screen: Kubernetes, Cloud Services, and Secure CI/CD Context You are designing and operating services on Kub...
Explain background and Salesforce motivation
Explain background and Salesforce motivation Behavioral: Background, Motivation, and Team Fit (Salesforce, GCP-Focused) Prompt Provide a concise, stru...
Convert Integer to Non-Adjacent Form
Convert Integer to Non-Adjacent Form Implement toNAF(n) that converts an integer n (allow negative n) to its Non-Adjacent Form using digits from {-1, ...
Count the Ways to Split a Digit String into Primes
You are given a string s consisting of decimal digits ('0'–'9') that represents a positive integer. Count the number of ways to split s into a sequenc...
Minimum Sum of Weekly Maximum Costs
This question tests dynamic programming skills applied to array partitioning, specifically minimizing an objective function over contiguous subarrays....
Design a pipeline orchestration system on Kubernetes
This question evaluates a candidate's ability to design scalable, highly available pipeline and workflow orchestration systems on Kubernetes, emphasiz...
Implement an LFU cache with O(1) operations
This question evaluates a candidate's ability to design and implement efficient data structures for caching, including understanding frequency-based e...
Flatten a nested JSON object
This question evaluates the ability to traverse and manipulate nested JSON-like structures, emphasizing concepts such as recursion or iterative traver...
Solve array duplicate flags and binary swaps
Problem 1: Flag duplicates on the left and right You are given an integer array nums of length n. For each index i, determine: 1. Left-duplicate: whet...
Implement an LFU cache
Problem: LFU Cache Design and implement a Least Frequently Used (LFU) cache with a fixed capacity. The cache supports the following operations: - get(...
Find longest subsequence of x that is a substring of y
Given two strings x and y, compute the maximum length of a string s such that: - s is a subsequence of x (can delete zero or more characters from x wi...
Flatten nested JSON into a string map
Problem You are given an input JSON object that may contain nested objects and arrays. Your task is to flatten it into a single-level key/value mappin...
Minimize steps to reduce integer
Given a positive integer n (1 <= n <= 2^61 - 1), in one step you may replace n with n/2 if n is even, or with n+1 or n-1 if n is odd. Return the minim...
Convert integer to NAF form
Question Convert a given integer into its Non-Adjacent Form (NAF) representation such that no two non-zero digits are adjacent, and prove that the res...
Remove duplicates in linked list
Question Given a linked list, remove all duplicate values so that each value appears only once. Provide solutions for both sorted and unsorted linked ...
Design O(nm) grouping of rearranged strings
Given an array of strings, group together words that are permutations of the same characters. Provide a baseline solution that sorts each word (O(n · ...
Compare cloud compute; design Kubernetes security and CI/CD
Compare cloud compute; design Kubernetes security and CI/CD Cloud Compute Models, Testing Strategies, Kubernetes Deep Dive, Security, and CI/CD to GKE...
Implement 64-bit modular exponentiation safely
Implement a function to compute (a^b) mod m where 0 ≤ a,b < 2^61−1 and 1 ≤ m < 2^61−1 using only 64-bit operations without overflow. Provide implement...
Determine minimal substitutions and removals
Question Given a list of words, determine the minimum number of character substitutions required so that, in every word, no two adjacent characters ar...
Deduplicate a Linked List
Given a singly linked list, remove duplicate values in-place. Variant A (sorted list): delete repeated nodes so each value appears once using O( 1) ex...