APIs & Back-end

Secure, scalable application back-ends with clear interfaces and strong observability.

Deliverables

REST/GraphQL schemas, pagination, filtering, errors, and versioning strategy.

OIDC/OAuth2, session/token models, RBAC/ABAC, permissions, and audit trails.

Schema design, migrations, indexing, transactions, and backup/restore procedures.

Profiling, caching (Redis), background jobs/queues, and rate-limiting.

Structured logs, metrics, traces, SLOs, alerting, and runbooks.

Node.js (NestJS, Express) or Python (FastAPI); GraphQL (Apollo) or REST (OpenAPI)
PostgreSQL/MySQL, Prisma/TypeORM/SQLAlchemy; Redis; object storage
Message queues: SQS, RabbitMQ, Kafka (when appropriate)

We’ll map resources, contracts, and rollout plan.