Salesforce developer interview questions for an experienced candidate:

Here are some Salesforce developer interview questions for an experienced candidate:

Technical Knowledge and Skills

1. Apex and Triggers:
   • Explain the Apex Trigger Handler pattern and its benefits.
   • How do you handle bulk operations in Apex triggers?
   • Describe a scenario where you used a trigger to solve a business problem.
2. Visualforce and Lightning Components:
   • What are the differences between Visualforce and Lightning components?
   • Explain the process of migrating a Visualforce page to a Lightning component.
   • How do you handle communication between Lightning components?
3. Salesforce Integration:
   • Describe how you would integrate Salesforce with an external system.
   • What are the different methods for integrating with external systems (e.g., REST API, SOAP API)?
   • Can you explain the use of Named Credentials in Salesforce?
4. Salesforce Security:
   • How do you implement field-level security in Salesforce?
   • What are sharing rules and how do they differ from roles and profiles?
   • How would you ensure data security while integrating with an external system?
5. Salesforce Deployment:
   • What tools do you use for deploying code and configuration changes in Salesforce?
   • Explain the Salesforce deployment process using Change Sets.
   • How do you handle deployment errors and rollback strategies?

Scenario-Based Questions

6. Problem Solving:
   • You need to automate a complex business process that requires approval from multiple levels of management. How would you implement this in Salesforce?
   • A user reports that a certain field is not updating as expected after a trigger is executed. How would you troubleshoot this issue?
7. Best Practices:
   • Describe your approach to writing test classes in Salesforce. How do you ensure high test coverage and quality?
   • How do you handle governor limits in Salesforce?
   • What are some best practices for designing scalable and maintainable Salesforce applications?

Advanced Topics

8. Advanced Apex:
   • Explain the concept of Apex Batch Processing and its use cases.
   • What is Apex Managed Sharing and when would you use it?
   • Describe how you would use Queueable Apex and its advantages over Future methods.
9. Lightning Web Components (LWC):
   • What are Lightning Web Components and how do they differ from Aura components?
   • Describe the lifecycle of a Lightning Web Component.
   • How do you handle state management in LWCs?

Behavioral and Experience-Based Questions

10. Experience:
    • Can you describe a challenging Salesforce project you worked on and how you overcame the challenges?
    • How do you stay updated with the latest Salesforce features and best practices?
    • Describe a time when you had to work with cross-functional teams to deliver a Salesforce solution.

These questions cover a range of topics and are designed to assess both technical expertise and practical experience in Salesforce development.