OptionFlow

Backends that survive real traffic, not just localhost.

We build APIs, Postgres, auth, queues, and the infrastructure they run on. Typed, tested, documented, monitored — so the frontend has something solid behind it, and nobody gets paged at 3 a.m.

Backend Development

What you get

  • StackNode.js, Python, .NET, PostgreSQL
  • APIsVersioned REST/GraphQL with OpenAPI, breaking-change policy
  • DataVersioned migrations, indexed queries
  • SecurityAuth, roles, rate limits, audit logs
  • OperationsDocker, CI/CD, monitoring, alerts

Sound familiar?

  • Frontend ready, no production-grade API behind it yet

  • The API slows to a crawl once more than a handful of users are online

  • Nobody knows what half the endpoints do, and there's no documentation

  • Every deploy is a manual ritual that someone has to babysit

  • You suspect user data isn't as protected as it should be, but nobody has checked

  • Background jobs fail silently, and you find out from customers

What we build

  1. 01

    APIs: REST & GraphQL

    Versioned APIs with strict validation, cursor pagination, idempotency keys, and rate-limit plus abuse guards. Machine-readable errors, OpenAPI or GraphQL schema, and webhook retries with a dead-letter queue.

  2. 02

    Data & databases

    Postgres schema design, zero-downtime migrations with lock timeouts and backfills, and PITR backups with tested restores. Redis for caching, Kafka only when events justify it.

  3. 03

    Auth, permissions & integrations

    Auth with token rotation and instant revocation, tenant-isolated row-level security, idempotent payment webhooks, and third-party APIs behind retries and circuit breakers — secrets server-side only.

  4. 04

    Infrastructure & DevOps

    Docker, Kubernetes only when multi-service scale demands it — otherwise managed hosting to cap your bill. CI/CD with staging parity, SLO alerts, and runbooks. We own incidents through the support window.

How it works

  1. 01

    Discovery call

    Tell us what the product does, what the frontend expects, and where the current backend hurts. No commitment.

  2. 02

    Scope & proposal

    An architecture outline, a fixed-scope plan with price and timeline, and the first sprint mapped out before we write code.

  3. 03

    Build in sprints

    Working endpoints on a staging environment every one to two weeks, with API docs your frontend team can build against immediately.

  4. 04

    Launch & support

    Production deploy, monitoring, runbooks, and a support window — then you own the code and the infrastructure.

Technologies we use

  • Node.js
  • Express.js
  • Python
  • Django
  • .NET
  • ASP.NET Core
  • GraphQL
  • PostgreSQL
  • Redis
  • Kafka
  • Docker
  • Kubernetes

Common questions

Ready for a backend you don't have to babysit?