Technology

Backend Development

Event-driven, contract-first services: Node.js, FastAPI, Kafka - observable by default.

Overview

Where it fits.

We build backends that are contract-first, event-driven where it earns it, and observable from day one. Boring deployments, auditable data flows.

Tools

What we reach for.

Node.js
22
primary runtime
MITdocs →
FastAPI
0.11x
Python services
MITdocs →
Kafka
3.x
event backbone
Apache-2.0docs →
PostgreSQL
16
primary store
PostgreSQL Licensedocs →
Valkey
8
open Redis fork
BSD-3docs →
OpenAPI
3.1
contracts-first
Apache-2.0 (spec)docs →
Prisma
6
typed data access
Apache-2.0docs →
Sentry
error observability
SDK MITdocs →

Use cases

What it's great for.

API platforms
contract-first, versioned, documented
Event-driven integrations
Kafka backbones, idempotent flows
Realtime services
websockets with fallbacks
Legacy modernization
strangler increments

Pairings

Plays well with.

frontend developmentOpenAPI contracts drive UI codegen
cloud devopsIaC + canary deploys per service
ai datapipelines + embeddings storage

As a service

Where this stack ships.

FAQ

Questions, answered.

Node or Python?

Node for breadth, FastAPI for AI-adjacent services; the workload decides.

Why contracts-first?

OpenAPI prevents integration drift and enables parallel work.

Valkey instead of Redis?

Redis changed to RSALv2; Valkey is the BSD-licensed community fork we default to.

How do you handle scale?

Load tests with k6 budgets in CI; horizontal scaling via K8s.

Observability?

OpenTelemetry traces, Prometheus metrics, Sentry errors - from day one.