FastAPI development company in India
A FastAPI team based in New Delhi that plugs into your backlog: Python engineers who write Pydantic models, async endpoints and tests to your standards, review code in shared hours, and hand over services your own developers can run.
- India-based senior engineers
- IST + US/UK overlap
- 24-hour reply
- Projects shipped
- 50+
- Code ownership
- 100%
- Client rating
- 4.8/5
- First reply
- 24h
Staffing and running FastAPI work from India
Choosing a FastAPI development company in India makes sense when you need Python backend capacity that can own services end to end rather than pick up isolated tickets. At Krapton, a FastAPI squad usually combines backend engineers led by a senior who sets project structure, dependency patterns and review rules, plus QA automation in pytest and, when your stack needs it, a DevOps engineer for containers and CI. Gulf clients get almost a full shared day, since Dubai runs ninety minutes behind New Delhi; London and Berlin mornings meet our afternoon; US East Coast teams usually take a standing call at the start of their day. Between calls, the API contract carries the conversation: OpenAPI diffs appear in each pull request, so your frontend developers see field changes before they merge. Engineers work in your GitHub or GitLab under your branch protection rules, and an NDA plus IP assignment are in place before repository access is granted.
FastAPI development services in India
Dedicated FastAPI developers
Python engineers assigned to your product who attend your ceremonies, follow your linting and typing rules with Ruff and mypy, and own FastAPI services from ticket to deploy.
Backend for your frontend team
When your web or mobile developers sit elsewhere, we build the FastAPI layer they consume, publish OpenAPI-generated clients, and keep mock servers current so both sides move in parallel.
Model-serving microservices
Wrapping models from your data science team in FastAPI services with input schemas, versioned routes, warm-up on startup and GPU or CPU worker settings matched to the model.
Test coverage catch-up
Adding pytest suites to untested FastAPI code: dependency overrides for auth and databases, factory-built fixtures, Testcontainers for Postgres, and coverage gates in your CI pipeline.
Maintenance and upgrade retainers
Keeping FastAPI, Starlette, Pydantic and SQLAlchemy current, patching CVEs flagged by pip-audit or Dependabot, and handling the small fixes that in-house teams rarely have time for.
Async data pipelines
Ingestion and sync services built on FastAPI with httpx, asyncpg and task queues, pulling from partner APIs on schedules and exposing status endpoints your operations team can check.
Why an India-based FastAPI team from Krapton
Senior engineers, fixed scope, and code you own — the things agencies promise and rarely deliver.
Review rules you set
Branch protection, required reviewers and CI checks stay under your control; our senior engineer reviews first, your lead can review second, and nothing merges on a failing pipeline.
Vetting on real FastAPI code
Engineers prove themselves on a practical exercise: spotting a blocking call in an async route, structuring dependencies for auth, and writing tests with dependency overrides, then explaining their choices.
Demos against staging
Sprint demos run against a deployed staging API, not a laptop, so your product owner can try endpoints in Swagger UI and approve behavior directly.
Paperwork done before access
Krapton signs your NDA or ours, an IP assignment covering code and documentation, and a data-processing addendum where personal data is involved, before engineers see a repository.
How we run FastAPI projects from India
01
Onboarding to your repo
Engineers get access, run the service locally with Docker Compose, read existing routers and models, and submit a small fix first to learn your conventions.
02
Sprint planning in overlap
Planning and refinement happen in shared hours; tickets carry acceptance criteria and example requests and responses, so work continues unblocked while your team is offline.
03
Review and staging demo
Pull requests include tests and OpenAPI diffs; after review they deploy to staging, where each sprint’s endpoints are demonstrated live and recorded.
04
Handover package
You receive architecture notes, environment setup docs, runbooks for deploys and incidents, and a recorded code walkthrough, with access revoked at your request.
FastAPI tools our India team works with
FastAPI development in India: questions answered
How does a FastAPI development company in India fit into our existing engineering team?
It fits as an extension of your team, not a separate silo. Our engineers work in your repository, tracker and chat, follow your architecture decisions on routers and dependencies, and submit pull requests that your reviewers can approve or reject. For larger scopes we can own whole services, but the API contracts, review rules and deployment pipeline stay yours.
What should we test when we hire FastAPI developers in India?
Focus on async judgment and testing habits rather than syntax questions. Give candidates a route that calls a synchronous library inside async def and see whether they spot the blocked event loop. Ask how they would structure tenant-aware auth as dependencies, how they would test it with dependency overrides, and how they would run Alembic migrations safely during a rolling deploy.
How do FastAPI developers in India coordinate with US-based teams?
They coordinate through a fixed daily call plus a written trail. The call usually sits in your morning and the Indian evening, covering blockers and decisions; everything else moves through pull request descriptions, OpenAPI diffs and ticket comments. Because the contract is machine-readable, your frontend developers can build against the updated schema during their own day with no extra meeting.
Who owns the FastAPI code and infrastructure we build together?
Your company owns it. The services agreement assigns copyright in code, schemas, tests and documentation to you, and infrastructure is created in your cloud accounts from the start, so there is nothing to transfer later. Our engineers use named accounts you control, and removing them is a normal offboarding step rather than a negotiation.
How is a FastAPI project handed over at the end?
It is handed over with documentation, recordings and a supervised transition. You get the architecture overview, local setup and deploy runbooks, environment variable references, test instructions and known issues, plus a recorded walkthrough of each service. Krapton can then shadow your developers through their first releases so questions are answered while the context is still fresh.
Ready to build? Tell us what you have in mind.
Send a short brief and a senior engineer will reply within one business day with next steps — no sales fluff.