Solutionsbyte

FastAPI Development

Python APIs at full speed

Async-first Python backends with FastAPI — the stack of choice for AI/ML services, data APIs, and high-performance microservices with automatic OpenAPI docs.

30k+

req/sec on async endpoints

100%

typed request/response schemas

<50ms

p99 latency targets hit

Business impact

Outcomes that move the bottom line

We measure success in business results — revenue, cost, speed, and reliability — not lines of code shipped.

30k+

Req/sec on async endpoints

Python that performs — async-first design that handles serious concurrent load on modest hardware.

<50ms

p99 latency hit

Profiled, optimized hot paths that meet aggressive latency SLAs even under spiky traffic.

100%

Typed schemas

Pydantic-validated contracts and auto-generated docs your frontend team can build against with confidence.

AI-ready by design

The natural home for model serving, inference APIs, and data pipelines that feed your AI features.

Capabilities

What we deliver

High-performance APIs

Async endpoints with Pydantic validation, dependency injection, and auto-generated OpenAPI docs your frontend team will love.

AI/ML model serving

Inference APIs for LLMs and custom models — streaming responses, batching, GPU-aware scaling, and queue-backed long tasks.

Data & ETL services

Pipelines and data APIs with Celery workers, scheduled jobs, and integrations into warehouses and analytics stacks.

Auth & multi-tenancy

OAuth2/JWT auth, role-based access, rate limiting, and tenant isolation patterns for SaaS products.

What's included

Concrete deliverables

Every engagement ships tangible artifacts you own and can run without us — not slideware.

  • Contract-first API design and OpenAPI specification
  • Async FastAPI service with Pydantic models
  • Model-serving / inference endpoints where needed
  • Celery workers and scheduled jobs
  • Auth, rate limiting, and multi-tenancy
  • Dockerized deployment with structured logging
Ideal for

Is this the right fit?

We do our best work when the fit is right. This practice shines for teams like these:

  • AI/ML teams needing to serve models in production
  • Data APIs and ETL pipelines
  • High-performance microservices written in Python
  • SaaS products needing multi-tenant Python backends
Stack

Tools of the trade

FastAPIPython 3.12PydanticSQLAlchemyCeleryPostgreSQLDockeruv
How we work

Our process

01

API design first

Contract-first design with your consumers — schemas and endpoints agreed before code is written.

02

Typed foundation

Pydantic models, strict mypy, pytest harness, and CI from the first commit.

03

Build & load test

Feature delivery with async patterns done right, profiled and load-tested against your SLA targets.

04

Ship & observe

Containerized deployment with structured logging, tracing, and metrics wired into your stack.

How we engage

Ways to work together

Choose the model that matches your stage and risk profile — or tell us your constraints and we'll recommend one.

Defined outcome, fixed budget

Fixed-scope project

A scoped statement of work with milestones, acceptance criteria, and a target launch date. You know the cost and the deliverable before we start.

Best for: Well-defined builds with clear requirements and a firm timeline.

An embedded senior team

Dedicated squad

A cross-functional pod — engineering, design, and delivery — that works as an extension of your team with sustained velocity and full ownership.

Best for: Evolving roadmaps that need ongoing capacity and accountability.

Ongoing partnership

Retainer & support

Reserved monthly capacity for iteration, maintenance, performance work, and on-call reliability — with response-time SLAs that match your risk.

Best for: Maintenance, iteration, and reliability after launch.

FAQ

Common questions

FastAPI's async runtime, Pydantic validation, and auto-docs make it ideal for APIs and AI services. Django still wins for admin-heavy CRUD apps — we use both and recommend what fits your project.

Let's build something

Have a project in mind?

We'd love to hear about it. Tell us what you're building and we'll get back to you within 24 hours.