Technical proficiency
Check hands-on depth with model serving and pipeline stacks: Kubeflow or Airflow, MLflow or Weights & Biases, Docker, Kubernetes, Terraform, plus GPU scheduling and CI/CD for retraining.
Evidence to listen for
- Command of the languages, frameworks, and data tools the role actually uses
- Understands correctness, performance, and failure modes, not just syntax
- Has opinions on testing and can justify them
- Reads and reasons about code they did not write
Five-point scoring guide
Cannot work independently; fundamentals are missing.
Weak fundamentals; output needs heavy review.
Competent for the role; needs guidance on complex or unfamiliar work.
Strong practitioner; handles hard problems with little guidance.
Names the exact registry, orchestrator and serving layer they ran, with versions, GPU node configs and retraining cadence they owned.