I Cracked My Salesforce Developer Interview — Complete 2025 Guide

Posted by Vinay Vernekar 27th December 2025

A concise, practical guide that bundles Admin, Apex, LWC, Flow and Integration interview topics — with real-world scenarios, code snippets and preparation tips to help you succeed in Salesforce developer interviews.

Overview

This guide consolidates core Salesforce concepts and hands-on interview Q&A across Admin, Apex, LWC, Flow and Integrations. It is designed to help candidates explain concepts clearly, demonstrate practical knowledge, and solve real-time scenarios — the skills interviewers look for at top consultancies and product companies.

What’s covered

  • Salesforce fundamentals: Objects, Profiles, Permission Sets, Record Types, Page Layouts
  • Security & sharing: OWD, Role Hierarchy, Sharing Rules, FLS, CRUD
  • Automation: Workflow, Process Builder vs Flow (record-triggered & scheduled paths)
  • Data & reporting: Data Loader, Validation Rules, Reports & Dashboards
  • Apex: Triggers, Classes, Async (Future / Queueable / Batch), Governor Limits, Security enforcement
  • Lightning Web Components: architecture, @wire vs imperative calls, LMS, NavigationMixin
  • Integrations: REST/SOAP API, Connected Apps, OAuth, Named Credentials, Platform Events

Key interview scenarios and solutions

Below are sample scenario-based answers that show how to think, not just what to memorise.

Profile vs Permission Set

  • Create a Permission Set granting Edit on Contact and assign to the user (avoids changing Profile).

Automating Lead Follow-up (Flow)

  • Create a Record-Triggered Flow on Lead with entry criteria Lead Status = “New” and Lead Owner ≠ null.
  • Add a Scheduled Path delayed by 3 days and send an Email Alert to the Lead Owner.

Preventing Duplicate Accounts

  • Create a Matching Rule and Duplicate Rule (Block or Allow but Alert). Prefer platform duplicate management over triggers when possible.

Practical code examples

Use these in interviews to demonstrate clear, secure, bulkified code.

Apex class example

public class MyGreeting {
    public String greet(String name) {
        return 'Hello, ' + name + '!';
    }
}

Bulkified SOQL example

Set accIds = new Set();
for (Contact c : contacts) accIds.add(c.AccountId);
Map accMap = new Map([SELECT Id, Name FROM Account WHERE Id IN :accIds]);

Interview pro tips

  • Explain the “why” and trade-offs — interviewers want decision-making, not just definitions.
  • Always mention Governor Limits when discussing Apex and show how you bulkified code.
  • Use Flow for automation (it is the future) and show you understand scheduled paths and fault handling.
  • Highlight security enforcement: CRUD & FLS checks, with sharing, and Security.stripInaccessible().
  • Bring one short project example from your experience to illustrate impact and metrics.

Where this helps

This guide is useful for freshers preparing for entry-level developer roles and experienced candidates revising system design, performance, and security topics for senior interviews. Companies like Deloitte, Accenture, TCS, EY, and product teams evaluate both conceptual knowledge and practical implementation — this post covers both.

Final words

Practice in a Developer Org, answer with structure, and keep examples short and relevant. Focus on secure, bulkified code and end-to-end flows that demonstrate you can ship reliable Salesforce solutions.

Why this matters for Salesforce admins, developers and business users: clear interview answers reflect real-world skills — designing secure, scalable, and maintainable solutions that reduce technical debt and increase business velocity.

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