Salesforce Interview Questions
Practice the exact questions companies are asking right now.
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Design a coffee ordering system
System Design: Coffee Ordering System Design a system for a coffee shop (or chain) that supports ordering drinks. Core use cases - Customer browses me...
Design a configurable monthly API rate limiter
Design a rate-limiting system for an expensive API. Requirements - Each user (or API key) has a monthly quota (e.g., 10,000 calls/month). - Users can ...
Design a TikTok-like short video platform
Design a TikTok-like short-video product. Core user stories 1. Users upload short videos (e.g., 10–60 seconds). 2. Users watch an infinite For You fee...
Design an analytics dashboard for an AI chat app
Scenario Design an analytics dashboard for a ChatGPT-like AI chat product. The dashboard is used by Product/Engineering/Support to monitor product hea...
Maximize events attended given date ranges
You are given n events, where each event i can be attended on any single day within an inclusive range \([start_i, end_i]\). You can attend at most on...
Design a scalable coffee ordering notification system
Design an online coffee ordering system. Core flow - Customers browse menus for nearby coffee stores, place orders, and pay. - Coffee stores receive o...
Remove duplicates and find constrained longest subsequence
You are given two independent coding tasks. Task 1: Remove duplicates from a linked list Given the head of a singly linked list (not necessarily sorte...
Flatten a nested JSON object
Problem You are given a JSON-like value representing an object that may contain: - Objects / dictionaries (string keys) - Arrays / lists - Primitive v...
Solve sliding window, heap, DP, in-place tasks
You are given several LeetCode-style coding tasks. Implement each with the stated time/space goals and handle edge cases. 1) Sliding Window: longest s...
Design a file sync and sharing service
Scenario Design a cloud file storage, sync, and sharing service similar to a consumer/team drive product. Core requirements - Upload/download files fr...
Minimize operations to reduce integer to zero
You are given a non-negative integer n. In one operation: - If n is even, you may replace n with n / 2. - If n is odd, you may replace n with either n...
Design a pipeline orchestration system on Kubernetes
Design a pipeline/workflow orchestration system (similar to a DAG-based scheduler) that runs workloads on Kubernetes. Functional requirements - Users ...
Design an async job system and cache layer
Design two systems. You can assume a large-scale production environment; focus on clear APIs, data models, scaling, reliability, and trade-offs. Part ...
Choose DynamoDB vs MySQL for a backend
In a backend system, you must choose a primary database for a core service. Explain when you would choose a key-value/NoSQL store (e.g., DynamoDB-like...
Write SQL for top spender and non-spenders
SQL Questions Assume the following schema: - users(user_id, created_at, ...) - transactions(txn_id, user_id, amount, txn_ts) - amount is a positive ...
Design a 911 emergency calling service
System Design Prompt Design a 911 emergency calling service (or emergency call routing platform) that allows users to place emergency calls from mobil...
Implement a traffic-light UI with JS
Frontend Coding: Traffic Light Build a simple traffic light component using HTML + CSS + JavaScript. Requirements - Render a vertical traffic light wi...
Implement common data-structure and JS tasks
You are given several independent coding tasks that appeared across an OA and frontend-focused interviews. Implement each as specified. 1) Time-based ...
Answer ownership, conflict, and failure recovery questions
You are in a 45-minute hiring manager (behavioral) interview. Prepare structured answers to: 1. Ownership: Describe a project where you showed the mos...
Describe a memorable bug and persuasion story
Behavioral Questions Q1: Most memorable bug Tell me about the most memorable/impactful bug you encountered in your work experience. - What was the use...