Levelbrook designs and ships TypeScript APIs for teams that need something more durable than endpoints rushed out under deadline: REST, GraphQL, OAuth, webhooks, partner integrations, queue-backed workflows, and the observability to debug them.
A Node.js API is not just a set of routes. It is a contract with customers, partners, internal tools, and future engineers. Levelbrook builds APIs with that in mind: typed schemas, validation, versioning, auth, pagination, rate limits, useful errors, and logging that makes production failures diagnosable.
This work fits teams that already run JavaScript or TypeScript in production and need senior backend capacity without a full-time hire. It also fits mixed-stack teams where Rails, Python, and Node each own the part of the system they are best suited for.
Every API build leaves behind documentation and written-down decisions. The goal is a system your team understands and owns after the engagement, not a permanent dependency on a contractor.
Versioned resources, validation, pagination, auth, rate limits, docs, and tests for real consumers.
Schema design, resolvers, auth, batching, and query patterns that keep performance predictable.
Retry-safe delivery, idempotent handlers, dead-letter paths, and audit logs partners can trust.
Typed API clients, queue-backed sync, reconciliation, and failure modes that surface early.
Whichever fits the consumers. REST is often best for public partner APIs; GraphQL can fit complex product clients. The choice should follow usage, not taste.
Yes — OAuth, JWT, SSO, permission checks, token lifetimes, and the logging/security details that tend to matter in review.
Yes. A defined API, webhook system, or integration is usually a good fixed-scope project. Evolving roadmap work can run hourly as staff augmentation.
Yes. Typical Node API work includes Postgres, Redis, queues, S3, SQS, Lambda, ECS, Cloudflare, and CI/CD cleanup as needed.
Email levelbrookteam@gmail.com with the API consumers, the existing stack, and what needs to ship. You'll get an honest read within one business day.
Send the API shape, consumers, and existing stack. You'll get an honest read on approach and scope within one business day.