Salesforce Developer interview questions & mock practice
A Salesforce Developer interview in 2026 runs across 4 rounds — salesforce fundamentals, apex round, lightning / ui round, scenario & integration. Below are the most-asked Salesforce Developer interview questions and a focused prep plan. Rehearse every answer with OnJob's free AI mock interview and get instant, specific feedback before the real one.
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Step through the 13 most-asked Salesforce Developer questions one at a time, under a timer, just like the real thing. Jot your answer, then reveal what a strong answer covers. No signup needed to practise.
What a strong answer covers
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The Salesforce Developer interview process
Apex, Lightning Web Components and the Salesforce data model — a high-demand CRM-platform interview across Indian IT services firms and Salesforce consulting partners.
Salesforce fundamentals
Data model, objects, relationships, profiles, permission sets and security model.
Apex round
Triggers, classes, SOQL/SOSL, governor limits and bulkification.
Lightning / UI round
Lightning Web Components, Aura, and the Lightning App Builder.
Scenario & integration
Automation choices, integration patterns and a project deep-dive.
Most-asked Salesforce Developer interview questions
13 of the questions Salesforce Developer candidates are asked most often in India. Practise answering each one out loud in your AI mock interview.
- 1. What is the difference between a Lookup and a Master-Detail relationship?
- 2. What are governor limits and why does Salesforce enforce them?
- 3. What does it mean to bulkify an Apex trigger and why is it important?
- 4. Explain the difference between SOQL and SOSL.
- 5. What is the difference between a Profile and a Permission Set?
- 6. What are the different trigger context variables and when do you use Trigger.new vs Trigger.old?
- 7. When would you use a Workflow Rule, Process Builder, or a Flow?
- 8. What is the difference between a Role and a Profile in the sharing model?
- 9. Explain the difference between Lightning Web Components and Aura components.
- 10. What is a wrapper class in Apex and when do you use one?
- 11. How do you write a test class and what code coverage is required to deploy to production?
- 12. What is the difference between with sharing and without sharing in Apex?
- 13. Explain how organisation-wide defaults, roles and sharing rules control record access.
How to prepare for your Salesforce Developer interview
Know the data model and security model cold: objects, relationships, OWD, roles, profiles, permission sets and sharing rules.
Be strong in Apex: triggers and the trigger framework, bulkification, governor limits, SOQL/SOSL and writing test classes for coverage.
Understand the declarative-vs-code trade-off: when a Flow beats Apex, and the modern push away from Workflow Rules and Process Builder.
Learn Lightning Web Components: the component lifecycle, wire service, Apex calls and event handling.
Pursue the Platform Developer I certification and practice on Trailhead — it is frequently expected by Salesforce partners.
Practise other roles
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Interview prep guides
Salesforce Developer interview — FAQs
What questions are asked in a Salesforce Developer interview?
Common Salesforce Developer interview questions include: What is the difference between a Lookup and a Master-Detail relationship? What are governor limits and why does Salesforce enforce them? What does it mean to bulkify an Apex trigger and why is it important? Explain the difference between SOQL and SOSL. Interviews usually run across 4 rounds — Salesforce fundamentals, Apex round, Lightning / UI round, Scenario & integration. Practice all of them with instant AI feedback using OnJob's free mock interview.
How many rounds are in a Salesforce Developer interview?
A typical Salesforce Developer interview has 4 rounds: Salesforce fundamentals (Data model, objects, relationships, profiles, permission sets and security model.); Apex round (Triggers, classes, SOQL/SOSL, governor limits and bulkification.); Lightning / UI round (Lightning Web Components, Aura, and the Lightning App Builder.); Scenario & integration (Automation choices, integration patterns and a project deep-dive.).
How do I prepare for a Salesforce Developer interview?
To prepare for a Salesforce Developer interview: Know the data model and security model cold: objects, relationships, OWD, roles, profiles, permission sets and sharing rules. Be strong in Apex: triggers and the trigger framework, bulkification, governor limits, SOQL/SOSL and writing test classes for coverage. Understand the declarative-vs-code trade-off: when a Flow beats Apex, and the modern push away from Workflow Rules and Process Builder. Then run a full AI mock interview on OnJob to rehearse out loud and get instant, specific feedback before the real thing.
What skills do I need for a Salesforce Developer role?
Core Salesforce Developer skills tested in interviews include Apex, SOQL, Lightning Web Components, Salesforce Data Model, Triggers, Flows, Integration, Visualforce. OnJob shows you exactly which of these skills stand between you and a 100% match on every live Salesforce Developer job.
Is OnJob's Salesforce Developer mock interview free?
Yes. OnJob's AI mock interview is free to start (₹0) and gives you instant feedback on your answers. Pro (₹99/month) adds unlimited interview-prep AI alongside recruiter tracking and unlimited applications.
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