Opening via Tezvyn
Principal Backend Engineer (Python)
Product company, Series B and beyond · Ahmedabad · 10-15 yrs · ₹48-64 LPA
Your application comes to our recruiting desk, not to a mailbox. We read every one and take the people who fit to the hiring team.
We are hiring a Principal Backend Engineer (Python) in Ahmedabad for a team building on FastAPI, Python, Pydantic. 10-15 years of experience.
WHAT YOU WILL WORK ON
FastAPI, Python, Pydantic, with APIs, Asyncio, Security across the wider stack.
WHAT YOU NEED
- 10-15 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 set technical direction that other teams built on, and have been wrong about one of those decisions in a way you can describe.
- The ability to explain a technical decision to somebody who did not make it. Every round here includes it.
ALSO EXPECTED
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
HOW THE INTERVIEW GOES
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.
What the interview covers
FastAPI, Python and Pydantic.
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These roles come from a recruiting desk that has placed over 1,000 people in ten years, working alongside engineers out of the IITs and DRDO. You never pay us a fee. More about how we work.