Insighter Digital
Async Python APIs with strict typing

FastAPI

When you need a Python service that does one job fast — webhooks, ML inference, integration glue — FastAPI is the sharpest tool. Pydantic types keep the contract honest end to end.

Why us

Why teams pick us for FastAPI

The reasons clients usually keep us once the first scope ships.

  • Senior people only

    No bait-and-switch from your lead engineer in the pitch to a junior on day one. The people you scope with are the people who build.

  • Honest scoping

    We tell you what is in scope, what is not, and where the risks are — in writing, before you sign anything. Surprises kill projects.

  • Weekly demos, not big reveals

    You see real, running software every week. If a direction is wrong, you find out in week three, not week thirteen.

What's included

A FastAPI engagement, end to end

The work below is typical — we scope to the outcome, not a checklist.

  • FastAPI services with Pydantic schemas
  • Async DB access (SQLAlchemy 2.x async / Tortoise)
  • OpenAPI spec generation and client SDKs
  • JWT/OAuth auth flows
  • Containerized deploys with structured logs
How we work

How a FastAPI engagement runs

Three phases that bracket the work.

  1. 01

    Discover

    A working session to map the outcome, constraints, and the smallest thing worth shipping first. You walk out with a written scope, not a sales deck.

  2. 03

    Build

    Senior engineers in weekly sprints with live demos. You see progress every week — no surprise reveals at the end.

  3. 04

    Launch

    Production deploy, infra hand-off, runbooks, and team training. We stay on-call through the first traffic spike.

Related work

Engineering in practice

Projects in this pillar — the same skills that power a typical FastAPI engagement.

  • 2025 · Insighter Digital (in-house)In-house

    A CRM purpose-built for life-insurance comparison funnels

    A multi-tenant CRM with lead-routing, Google Ads OAuth integration, agent dashboards, and conversion analytics. Powers daily operations for our partner agencies.

    Daily active across multiple agency tenants

    • Engineering
    • Data & Platform
    • Commerce
    Visit live
  • 2024 · Confidential — DTC brand

    Shopify replatform with headless checkout

    Migrated a legacy WooCommerce store to headless Shopify with a custom Next.js storefront and bespoke subscription logic.

    LCP 1.1s → 0.4s, +18% mobile conversion

    • Commerce
    • Engineering
FAQ

Questions about FastAPI work

If you do not see your question, just ask. We will tell you straight whether we are the right fit.

Have a project? Let's scope it.

A 30-minute call, no slides. Tell us the outcome you need and we'll tell you what it takes to ship — honestly.