SSIS Interview Questions

Version control the project, build an .ispac artifact, deploy to SSISDB via script/DevOps pipeline, bind environments per stage, and automate smoke runs + rollback. Keep parameters and secrets externalized.

You receive hourly CSVs with late-arriving updates and no reliable timestamp. Design an SSIS solution that deduplicates, handles late arrivals, and supports restartability. Justify your hashing/watermark strategy, quarantine design, and how you’d prove idempotency.

Interviewers often start with your practical experience—what types of packages you’ve built, how complex they were, and the challenges you’ve solved. From there, they’ll explore package structure, data flow and control flow, deployment methods, and common troubleshooting steps. For more advanced roles, they may dive into performance tuning and real-world ETL scenarios.

Yes, most SSIS interviews include practical scenarios. You could be asked to design an incremental load, configure a Lookup transformation, or combine datasets using Merge or Union All. The goal is to see how you apply SSIS concepts in real situations.

While junior positions might not require heavy coding, knowing C# or VB for scripting tasks is a big plus. You should understand when to use a Script Task versus a Script Component and how they fit into the ETL process.

Review core SSIS concepts, practise building and deploying packages, and brush up on real-world troubleshooting. If you have access, work through sample projects that test data transformations, error handling, and deployment strategies.