How to Prepare for Salesforce Interview 2026 — Complete Guide
Step-by-step preparation guide for Salesforce interviews. Covers what to study, how long to prepare, top resources, and 12 real questions reported by engineers who cleared the Salesforce process.
Step 1 — Understand what Salesforce actually tests
Based on 12 questions reported by engineers, Salesforce focuses on: System Design, Domain, Behavioral, Domain / Multi-tenancy, SQL / Reporting, Security / Access Control, Java / Design Patterns, Security / Multi-tenancy.
Step 2 — Study the right topics in order
- System Design — 3 questions. Start here — highest weight in technical rounds.
- Domain — 2 questions. Second priority after the first topic.
- Behavioral — 2 questions. Cover once the first two topics are solid.
- Domain / Multi-tenancy — 1 questions. Cover once the first two topics are solid.
- SQL / Reporting — 1 questions. Cover once the first two topics are solid.
- Security / Access Control — 1 questions. Cover once the first two topics are solid.
- Java / Design Patterns — 1 questions. Cover once the first two topics are solid.
- Security / Multi-tenancy — 1 questions. Cover once the first two topics are solid.
Step 3 — Practice with real questions
These are the most upvoted questions engineers report being asked at Salesforce:
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'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?
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 a multi-tenant SaaS database architecture like Salesforce's. Thousands of enterprise customers share the same infrastructure but must never see each other's data. Compare silo (one DB per tenant), pool (shared DB, tenant_id column), and bridge models. Discuss query performance, schema customisation, and compliance isolation.
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?
Step 4 — Analyse the job description
Paste the exact Salesforce JD into Stepkai's AI tool. It will extract the competencies being tested, score your current readiness, and generate a personalised day-by-day plan targeting your specific gaps — not a generic checklist.
Step 5 — Mock interview
Practice answering Salesforce questions with AI grading. Get instant feedback on depth, correctness, and communication before the real thing.
Start practising →