Salesforce Java Interview Questions 2026
Published July 22, 2026 · Updated July 22, 2026
5 real Java interview questions asked at Salesforce. Upvoted by engineers who cleared the loop. Covers System Design, Technical rounds.
5 questions
130 engineers asked
215 upvotes
Company: Salesforce
Technology: Java
All Java Questions Asked at Salesforce
Salesforce
Hard
System Design round
JavaDistributed Systems
Design Salesforce's governor limits enforcement system. Every Apex code execution is limited (SOQL queries, CPU time, heap). How do you track and enforce these limits in real time across millions of concurrent org executions?
↑ 50 upvotes · 31 engineers asked this · SDE2
Salesforce
Hard
Technical round
PostgreSQLJava
Explain Salesforce's metadata-driven architecture. Why does storing field definitions as data (instead of schema changes) enable the multi-tenant model? What are the trade-offs in query performance?
↑ 45 upvotes · 28 engineers asked this · SDE2
Salesforce
Medium
Technical round
Java
What is Salesforce's SOQL and how does it differ from SQL? Explain relationship queries (parent-to-child and child-to-parent), the 100-SOQL governor limit, and how you optimise queries to avoid hitting it.
↑ 48 upvotes · 29 engineers asked this · SDE1
Salesforce
Hard
System Design round
JavaDistributed Systems
Design Salesforce Flow (visual process automation). Users define business workflows (if-then rules, send emails, create records) in a UI. How do you store, version, execute, and debug millions of active flows in a multi-tenant environment?
↑ 54 upvotes · 33 engineers asked this · SDE2
Salesforce
Medium
Technical round
2-6 yearsJava
When would you use the Builder pattern in Java instead of a constructor with many parameters? Sketch a builder for a User class with 6 optional fields.
↑ 18 upvotes · 9 engineers asked this · Senior SDE
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Frequently asked questions
Design Salesforce's governor limits enforcement system. Every Apex code execution is limited (SOQL queries, CPU time, heap). How do you track and enforce these limits in real time across millions of concurrent org executions?
Design Salesforce's governor limits enforcement system. Every Apex code execution is limited (SOQL queries, CPU time, heap). How do you track and enforce these limits in real time across millions of concurrent org executions?
Explain Salesforce's metadata-driven architecture. Why does storing field definitions as data (instead of schema changes) enable the multi-tenant model? What are the trade-offs in query performance?
Explain Salesforce's metadata-driven architecture. Why does storing field definitions as data (instead of schema changes) enable the multi-tenant model? What are the trade-offs in query performance?
What is Salesforce's SOQL and how does it differ from SQL? Explain relationship queries (parent-to-child and child-to-parent), the 100-SOQL governor limit, and how you optimise queries to avoid hitting it.
What is Salesforce's SOQL and how does it differ from SQL? Explain relationship queries (parent-to-child and child-to-parent), the 100-SOQL governor limit, and how you optimise queries to avoid hitting it.
Design Salesforce Flow (visual process automation). Users define business workflows (if-then rules, send emails, create records) in a UI. How do you store, version, execute, and debug millions of active flows in a multi-tenant environment?
Design Salesforce Flow (visual process automation). Users define business workflows (if-then rules, send emails, create records) in a UI. How do you store, version, execute, and debug millions of active flows in a multi-tenant environment?
When would you use the Builder pattern in Java instead of a constructor with many parameters? Sketch a builder for a User class with 6 optional fields.
When would you use the Builder pattern in Java instead of a constructor with many parameters? Sketch a builder for a User class with 6 optional fields.