Lead Backend Engineer (Python)

We are hiring a Lead Backend Engineer (Python) in Noida for a team building on FastAPI, Python, Pydantic. 7-9 years of experience.

FastAPI, Python, Pydantic, with APIs, Asyncio, Security across the wider stack.

• 7-9 years with FastAPI in production.
• Hands-on depth in Python, Pydantic, enough to defend a decision you made in each, and name the one you rejected.
• Working familiarity with APIs, Asyncio, Security.
• You have led delivery across more than one person's work: setting the technical direction, reviewing it, and being answerable when it slipped.
• The ability to explain a technical decision to somebody who did not make it. Every round here includes it.

Not the focus of the interview, but part of the job. Teams ask about these, so be ready to talk about them:

• Git, branching and code review as a daily habit
• One cloud provider used in anger: AWS, Azure or GCP
• CI/CD: your work reaches an environment without somebody carrying it
• Docker, and a container platform in production: Kubernetes, ECS or equivalent
• SQL beyond CRUD: indexes, query plans, and why a join got slow
• A queue or stream (Kafka, SQS, RabbitMQ), and what you do when it backs up
• Logs, metrics and traces you actually read when something is on fire

Expect to be asked how you would approach a problem in each of the areas above, and why you would not take the obvious route. Then one level down on whichever answer was weakest.