Technology
Built on tools
we trust for years.
We are not romantic about tools. We are romantic about outcomes. The stack below has proven itself under production load, in ours and our customers' operations.
File · 006 / TechnologyVol. 07 / 2026
01The stack
Languages
- TypeScript
- Rust
- Go
- Python
Runtime
- Node.js
- Bun
- Deno
- workerd
Data
- PostgreSQL
- ClickHouse
- Redis
- Kafka
Infrastructure
- Kubernetes
- Terraform
- Nomad
- OpenTelemetry
AI/ML
- PyTorch
- vLLM
- Ray
- In-house training stack
Frontend
- React
- TanStack
- Tailwind
- In-house design system
02Operating principles
Boring first.
We choose proven tools where we can, and reserve novelty for problems that demand it.
Observability by default.
Every system ships with metrics, traces and logs on day one — not day two hundred.
No orphan services.
Every service has an owning team, a documented runbook and an on-call rotation.
Data as a product.
Internal data platforms are treated with the same care as customer-facing ones.