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 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...
Design an analytics dashboard for an AI chat app
This question evaluates a candidate's ability to design scalable observability and analytics systems for an AI chat product, including considerations ...
Design a configurable monthly API rate limiter
This question evaluates system-design and distributed-systems skills, focusing on scalable API rate limiting, per-user monthly quota configuration and...
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...
Design a collaborative spreadsheet backend
Design a web-based spreadsheet service similar to Google Sheets, with emphasis on backend architecture and data models. Focus areas: - Multiple users ...
Compare GCP vs AWS and testing strategy
Public Cloud Building Blocks, Compute Choice, and Testing Strategy Context Assume you are designing a new stateless HTTP microservice that exposes RES...
Design a Chat Analytics Backend
Design the backend of an internal analytics system for a conversational AI product similar to ChatGPT. The goal is to power an analytical metrics dash...
Design an async job system and cache layer
This question evaluates system design competencies including asynchronous job orchestration, reliable background processing (state transitions, retrie...
Design a recommendation system
Design a recommendation system Design a User–Item Recommendation System Context You are asked to design an end-to-end recommendation service that sugg...
Maximize events attended given date ranges
This question evaluates understanding of interval scheduling and efficient algorithm design for allocating limited time-based resources, including con...
Architect serving and storage for recommender
Architect serving and storage for recommender System Design: Recommendation Service (Serving + Data Infrastructure) Context Design a production-ready ...
Minimize operations to reduce integer to zero
This question evaluates algorithmic problem-solving and integer-manipulation skills, specifically assessing the ability to reason about operation coun...
Remove duplicates and find constrained longest subsequence
This question evaluates data structure manipulation and string-processing competencies, specifically linked-list deduplication and finding the longest...
Solve sliding window, heap, DP, in-place tasks
This set evaluates proficiency with core algorithmic patterns—sliding-window techniques, heap-based top-k selection, dynamic programming for unbounded...
Write SQL for top spender and non-spenders
This question evaluates SQL querying skills including aggregation and grouping, date/time windowing for previous-calendar-month calculations, joins an...
Design a file sync and sharing service
This question evaluates system design competency, covering distributed storage architecture, synchronization protocols, conflict resolution and versio...
Design secure Kubernetes with CI/CD
Kubernetes Architecture, Troubleshooting, Security, and CI/CD (GKE/EKS) Context: You are the on-call software engineer for a managed Kubernetes cluste...
Design an end-to-end recommendation system
Design an end-to-end recommendation system System Design Prompt: End-to-End Movie Recommendation System You are tasked with designing an end-to-end mo...
Remove duplicates from a singly linked list
You are given the head of a singly linked list of integers. Modify the list in place so that it contains only the first occurrence of each value (i.e....
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...