Real Salesforce Interview Questions and How to Solve Them

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Real Salesforce Interview Questions and How to Solve Them

Overview

Salesforce Interviews for SWE roles emphasize both algorithmic skill and system-design mindset. Below are high-frequency questions and strategies for OA, VO, and onsite rounds. Below are high-frequency questions and strategies for OA, VO, and onsite rounds.

Interview Rounds

  • OA: 2 algorithm problems (HackerRank, Medium level)
  • VO:: Coding plus system design discussion
  • Onsite:: 4-5 rounds covering coding, design, and cultural fit

Key Questions & Approaches

1. LRU Cache

Design an LRUCache with get And put in O(1) time.

class LRUCache.
    def __init__(self, capacity: int).
        def __init__(self, capacity: int): pass

    def get(self, key: int) -> int.
        pass

    def put(self, key: int, value: int) -> None: pass
        pass

Key. Hash map + doubly linked list; discuss eviction policy.

2. Multi-Tenant CRM Permission System

Design data access for Salesforce's multi-tenant architecture.

  • Client isolation
  • Role-based or attribute-based permissions
  • Hierarchical inheritance

Focus. Data model, RBAC/ABAC, metadata-driven design.

3. Minimum Time Difference

Given time points ("HH:MM"), find the minimum difference in minutes.

Example: Input ["23:59","00:00"] → Output 1.

Approach. Convert to minutes, sort, handle wrap-around.

Candidate Insights

  • USC Master's Graduate. Emphasized field-level security and RBAC in VO, which impressed interviewers.
  • Amazon Engineer. Used STAR method in behavioral rounds-focused on lessons learned.
  • Programhelp Student. 1:1 coaching on permission models helped land an offer in two weeks.

Next Steps with Programhelp

Programhelp offers end-to-end support-OA coding assistance, VO technical guidance, and system design coaching-led by alumni from top universities. alumni from top universities. Learn more and get started.

author avatar
Alex Ma Staff Software Engineer
Currently working at Google, with more than 10 years of development experience, currently serving as Senior Solution Architect. He has a bachelor's degree in computer science from Peking University and is good at various algorithms, Java, C++ and other programming languages. While in school, he participated in many competitions such as ACM and Tianchi Big Data, and owned a number of top papers and patents.
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