Skip to content
OperationalLast ship · 4h agoIn flight · 6 engagementsReply within · 4hSenior partners onlyMMXXVIOperationalLast ship · 4h agoIn flight · 6 engagementsReply within · 4hSenior partners onlyMMXXVIOperationalLast ship · 4h agoIn flight · 6 engagementsReply within · 4hSenior partners onlyMMXXVI
SmartyDevs
Engineering · 09

Python engineered for production.

FastAPI, Django, async services, ML serving, data tooling and internal platforms. Typed, tested, observable Python that holds up at scale — not notebook code in a deployment.

§ 01The problem

The problem we solve

Python is the lingua franca of backend, data and ML — but most Python in production looks like research code that escaped a Jupyter notebook. Untyped, untested, slow because nobody profiled it, deployed because someone scp'd it onto a server. We write Python the way other languages do: typed end-to-end, tested at the boundaries, profiled where it matters, deployed like a real service.

§ 02Capabilities

What we ship

  • 01FastAPI services with async I/O, type-safe and OpenAPI-documented
  • 02Django applications with serious operational maturity
  • 03Async architecture with asyncio, anyio and Trio where each fits
  • 04Background workers with Celery, RQ, Dramatiq, Arq or Temporal
  • 05Database access with SQLAlchemy 2, Tortoise or raw psycopg
  • 06Pydantic models for boundary validation and serialization
  • 07ML model serving with FastAPI, BentoML, Ray Serve, vLLM
  • 08Data tooling: ETL, scraping, scripting, CLI tools with Click / Typer
  • 09Profiling and optimization: py-spy, scalene, asyncio diagnostics
  • 10Packaging and dependency management with uv, poetry, hatch
§ 03Deliverables

What you receive

  • A typed Python codebase — mypy / pyright strict
  • Test suite that catches regressions, not coverage theatre
  • Container image and deployment configuration
  • Performance baseline with documented bottlenecks
§ 04Stack

Stack we reach for

Python 3.12+
FastAPI · Django · Litestar
Pydantic v2
SQLAlchemy 2 · Tortoise · Prisma
asyncio · anyio · Trio
Celery · Temporal · Inngest
uv · ruff · pyright
pytest · Hypothesis
OpenTelemetry · Sentry
Docker · Kubernetes
§ 05Ideal for

Ideal for

  • Teams whose Python services are slowing down or breaking under load
  • Data and ML teams who need to ship models as real services
  • Companies migrating from Flask / Bottle to a modern async stack
  • Founders building backend on Python because their team knows it
  • Internal platforms needing scripting, ETL and operational tooling
§ 06Process

How an engagement runs

  1. 01

    Audit & profile

    Static analysis, type coverage, dependency health, performance profile. We measure where the pain is before touching code.

  2. 02

    Typing & test foundation

    Bring the codebase to typed, tested ground. mypy / pyright strict, pytest with meaningful coverage at boundaries.

  3. 03

    Architecture & refactor

    Async migration where it pays off, database access tightened, background work made reliable.

  4. 04

    Observability & deploy

    Logs, metrics, traces and alerts wired in. Container images, deployment configuration, runbook.

§ 07Engagement

How to engage

01

Python Audit

1 — 2 weeks

Static, runtime and architectural audit with a prioritized remediation plan.

02

Greenfield Service

4 — 12 weeks

New Python service built end-to-end with documentation and operational maturity.

03

Python Renovation

8 — 16 weeks

Existing Python codebase typed, tested, performance-tuned and made operable without a rewrite.

04

Embedded Python Team

3 — 12 months

Senior Python engineering inside your team, including mentorship and review culture.

§ 08Common questions

Frequently asked.

01Should we migrate from Flask / Django to FastAPI?

Not automatically. Django is excellent for content-heavy CRUD, admin and well-understood patterns. FastAPI shines for typed APIs, async I/O and ML serving. We will tell you which fits — and migration is often unnecessary.

02Can you make our Python faster without a rewrite?

Usually yes. The first 60% of performance work is profiling, fixing N+1 queries, adding correct caching and using async where it matters. Rewrites are rarely the answer.

03What about ML model serving?

We serve models with FastAPI, BentoML, Ray Serve or vLLM depending on the model and load. With proper batching, observability and cost modelling baked in.

04Do you do data engineering in Python?

Yes — see also our Data Engineering practice. Pipelines with Dagster, Airflow, Prefect, dbt-Python and pandas / Polars where appropriate.

Have a problem worth solving well?

Tell us the outcome you want. We'll tell you what it takes — honestly, within a week, in writing.

Start a conversation