18Software Engineering · Interview Prep · Free
Salesforce Developer interview questions — and how to answer them.
These are the questions Salesforce Developer candidates are most likely to face, from openers to the hard ones — each with a note on what a strong answer covers. Want more, tuned to your level? Use the free generator below.
What interviewers look for in a Salesforce Developer
- Concrete examples of systems you've built, with the trade-offs you weighed
- How you debug — the process, not just the fix
- Collaboration signals: code review, disagreements, mentoring
Likely Salesforce Developer interview questions
1. Can you walk us through your experience with Salesforce development? What types of projects have you worked on?
Highlight specific Salesforce implementations, scale of projects, and your role in delivery
2. What are the main differences between declarative and programmatic customizations in Salesforce?
Show understanding of when to use each approach and the trade-offs between configuration and code
3. Explain the Salesforce data model. How would you approach designing a complex data structure?
Discuss objects, fields, relationships, and considerations for scalability and query performance
4. Tell us about a time you had to debug a complex issue in Salesforce. What was your approach?
Demonstrate problem-solving methodology, use of debugging tools, and how you documented the solution
5. What is a trigger, and what are some best practices you follow when writing them?
Cover execution order, bulkification, recursion prevention, and governor limits awareness
6. How would you optimize a SOQL query that's hitting governor limits? Give a specific example.
Discuss selective queries, batch processing, SOSL alternatives, and demonstrating performance testing
7. Describe your experience with Apex classes and testing. How do you approach writing unit tests?
Mention test coverage requirements, mocking external calls, testing edge cases, and assertion strategies
8. Have you integrated Salesforce with external systems? Walk us through the architecture and challenges.
Discuss API types (REST/SOAP), authentication, error handling, rate limiting, and monitoring
9. What experience do you have with Lightning components or LWC? How do they differ?
Show hands-on knowledge of both frameworks, lifecycle, communication patterns, and performance considerations
10. Tell us about a time you optimized Salesforce performance. What metrics did you measure?
Demonstrate understanding of CPU time, heap size, query execution plans, and concrete results achieved
11. How do you handle deployments and versioning in Salesforce? Describe your change management process.
Discuss CI/CD pipelines, org-to-org deployment, metadata API, rollback strategies, and testing in sandboxes
12. Design a solution for a multi-tenant Salesforce application with complex business logic and integrations. What are the key architectural decisions?
Address security, scalability, governor limits, code organization, testing strategy, and monitoring/logging
Want to practice answering live with scored feedback? Try the Mock Interview Coach. Applying too? See a Salesforce Developer cover letter example.
Generate more — tuned to your level
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