Web & Mobile
API and backend engineering built to be trusted
Sound familiar?
Integrations break without warning
A third-party API changed its response format, a webhook fired twice, and customers were charged double. Nobody noticed until the support tickets arrived the next morning.
The database is the bottleneck
Pages that loaded instantly with ten users crawl with ten thousand. Missing indexes, N+1 queries and no caching mean every new feature ships with a performance apology.
Security was somebody else's job
Tokens never expire, roles are checked in the frontend only, and secrets live in the repository. One audit from a customer's IT team and the deal stalls for months.
What you get
- REST or GraphQL API
- NestJS or Node.js service
- PostgreSQL schema and migrations
- Auth with JWT, OAuth and RBAC
- Webhooks and event handling
- Third-party integrations
- API documentation
- Load and security testing
- Monitoring and alerts
Stack and tools
- Node.js
- NestJS
- TypeScript
- Python
- PostgreSQL
- Prisma
- Redis
- GraphQL
- OpenAPI
- Docker
- Grafana
- Sentry
How we do it
- 1
Design the contract
We write the API contract and data model before code: endpoints, payloads, error shapes and permission rules. Frontend and backend teams can then build in parallel against one document.
- 2
Build with guardrails
Input validation, typed responses, consistent error handling and least-privilege access are in the first commit. Webhooks verify signatures and every mutation is idempotent so retries never duplicate work.
- 3
Tune the database
Indexes, query plans and migrations are reviewed with EXPLAIN ANALYZE on realistic data volumes, with automated backups and a tested restore procedure in place well before launch day.
- 4
Ship with observability
The service deploys in Docker with health checks, structured logs, error tracking and dashboards, so when something fails you find out from an alert rather than from a customer.
Starting at
from $4,000
Typical timeline 2 weeks. Covers a focused service or integration. Full platform backends are scoped after the contract is written.
Related work
API & Backend: questions people ask
Let's scope your api & backend project.
Tell us what you are building or what is slowing you down. We reply within one business day.