Technical Screening Questions for Machine Learning Engineers
Hire ML engineers who can ship models to production. Use these 20 knockout questions to filter for practical experience with frameworks, data pipelines, and deployment.
"Asking about production deployment and vector databases helps us find ML engineers with real-world experience, not just academic knowledge."
- Head of AI, Research Lab
20 Knockout Questions for Machine Learning Engineers
| # | Question | Type | Knockout Rule |
|---|---|---|---|
| 1 | How many years of machine learning experience do you have? | MCQ: 0-1 / 1-3 / 3-5 / 5+ | Below minimum = Knockout |
| 2 | Are you proficient in Python for ML? | Yes / No | No = Hard Knockout |
| 3 | Have you worked with ML frameworks? | MCQ: TensorFlow / PyTorch / Scikit-learn / None | None = Hard Knockout |
| 4 | Have you trained and deployed ML models in production? | Yes / No | No = Knockout for production ML roles |
| 5 | Have you worked with large datasets for model training? | Yes / No | No = Red flag |
| 6 | Have you worked with NLP models or text data? | Yes / No | No = Knockout for NLP roles |
| 7 | Have you worked with computer vision models? | Yes / No | No = Knockout for vision roles |
| 8 | Have you used cloud ML platforms? (AWS SageMaker, GCP Vertex, Azure ML) | Yes / No | No = Red flag for cloud-first teams |
| 9 | Have you worked with LLMs or generative AI models? | Yes / No | No = Knockout for GenAI roles |
| 10 | Have you done feature engineering and data preprocessing? | Yes / No | No = Knockout |
| 11 | Have you used MLflow or similar tools for experiment tracking? | Yes / No | No = Red flag for structured ML teams |
| 12 | Have you worked with vector databases? (Pinecone, Weaviate, FAISS) | Yes / No | No = Knockout for RAG/LLM roles |
| 13 | Have you built ML pipelines or workflows? (Airflow, Kubeflow) | Yes / No | No = Knockout for MLOps roles |
| 14 | Have you worked with SQL or big data tools? (Spark, BigQuery) | Yes / No | No = Red flag |
| 15 | Have you evaluated model performance using standard metrics? | Yes / No | No = Knockout |
| 16 | Have you published research or contributed to open-source ML projects? | Yes / No | No = Red flag for research-heavy roles |
| 17 | Do you have a GitHub profile or project portfolio to share? | Yes / No | No = Red flag |
| 18 | What is your expected salary range? | MCQ: Range bands | Out of budget = Knockout |
| 19 | What is your current notice period? | MCQ: Immediate / 2 weeks / 1 month / 2+ months | Mismatch = Knockout |
| 20 | Are you available for an interview within the next 7 days? | Yes / No | No = Deprioritize |