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Core service

Backend & API Engineering

Services and APIs that stay up under real load.

Reliable back-ends, well-documented APIs, and data models designed to last — on Node.js, Ruby on Rails, and Python, with the integrations your business depends on.

Overview

Most production incidents trace back to the parts nobody sees: an unindexed query, a webhook with no retry, a background job that silently dies. We build back-ends with those failure modes designed out — clear data models, documented contracts, idempotent integrations, and observability that tells you what broke before a customer does.

What's included

  • REST & GraphQL API design and development
  • Database design, modelling, and optimisation
  • Authentication, authorisation, and role systems
  • Payment, CRM, and third-party integrations
  • Background jobs, queues, and scheduled workloads
  • Monolith-to-service decomposition

How the engagement runs

  1. 1

    API contract first

    Endpoints designed and documented (OpenAPI/GraphQL schema) before implementation, so front-end and third-party work can start in parallel.

  2. 2

    Data model review

    Schema design with indexing, migration strategy, and reporting needs considered up front rather than retrofitted under load.

  3. 3

    Resilient integrations

    Retries, idempotency keys, dead-letter handling, and sandbox testing for every external system you depend on.

  4. 4

    Observability

    Structured logging, metrics, and alerting so failures surface with enough context to act on immediately.

What you get out of it

  • APIs your own team and your partners can build against confidently
  • Query and job performance measured, not guessed at
  • Integrations that fail safely instead of corrupting data
  • A data model that supports reporting rather than fighting it

This is a good fit when

  • Your API is undocumented and every integration becomes a support ticket
  • Response times degrade as data volume grows
  • Background jobs fail quietly and nobody notices for days
  • You need to expose a partner or public API safely

Typical stack

  • Node.js
  • Ruby on Rails
  • Python
  • PostgreSQL
  • Redis
  • GraphQL

Ways to buy this

  • Discovery Sprintfrom $1,5001–2 weeks · Fixed fee
  • Fixed-Scope Buildfrom $12,0004–16 weeks · Milestone-billed
  • Dedicated Teamfrom $4,000/month3 months minimum · Monthly retainer
  • Care & Support Retainerfrom $900/monthRolling monthly · Monthly retainer

Starting points, not a rate card — how our pricing works.