Backend & API Engineering
APIs, data models, authentication and integrations designed to stay correct under load.
Good fit for
- Products where the database is starting to be the bottleneck
- Companies exposing an API to partners or a mobile client
- Teams that need integrations built to survive third-party failures
Overview
The backend is where correctness matters most. Data models, transaction boundaries, authentication and third-party integrations decide whether a product stays reliable when traffic and complexity increase.
We design and build backend services and APIs — REST and GraphQL — with clear contracts, sensible boundaries and the operational tooling needed to run them in production.
Business value
- A well-designed data model prevents expensive rewrites eighteen months in.
- Documented APIs let partners, mobile apps and internal teams build independently.
- Proper authentication and authorisation protect customer data from day one.
- Reliable integrations stop revenue leaking through failed syncs and lost webhooks.
Example deliverables
- API design and versioned OpenAPI documentation
- Relational data model, schema and migration strategy
- Authentication, authorisation and multi-tenant access control
- Third-party integrations with retry, idempotency and webhook handling
- Background jobs, queues and scheduled task infrastructure
- Automated test suite, load testing and query performance tuning
Technologies
- Python
- Django REST Framework
- FastAPI
- Node.js
- PostgreSQL
- Redis
- Celery
- REST & GraphQL
Related services
- Cloud & DevOpsCloud infrastructure, CI/CD, containerisation and monitoring — set up so deployments are boring.
- Custom Software DevelopmentBusiness platforms, internal tools and dashboards built around how your company actually operates.
- Technical ConsultingArchitecture reviews, technology decisions and engineering guidance — with a written recommendation.
Next step
Building the layer everything else depends on?
We'll review your current backend or design a new one — and be direct about the trade-offs.
Within 1–2 business days · Working with clients in the United States and internationally