Backend systems that hold under load.

Kaev is a systems engineering agency building production backends in Rust and Go: services that hold 50,000 requests per second at sub-10ms p99, event-driven architecture that contains failures, and infrastructure that heals itself instead of paging you.

Selected work

Everything below runs in production today, and the numbers beneath it are measured, not aspirational.

Kaev product

AttoGuard

Real-time threat detection across more than one million patterns at sub-100ms end-to-end latency, in production.

Read the case study →

What you get

• Rust and Go services communicating over gRPC, with Kafka for event-driven architecture and PostgreSQL for data.
• Kubernetes orchestration and infrastructure as code with Pulumi: deploys, scaling, and recovery are automated, not tribal knowledge.
• Observability from the first commit: you see latency, errors, and cost before your customers do.
• Architecture reviews and takeovers of existing systems, with an honest map of what to keep.

How we work

Architecture first: every engagement starts with a systems design before code, because the expensive mistakes are structural, not syntactic. If you are deciding between patching and rebuilding, start with five signs your backend needs re-architecting and the real cost of a system that breaks at scale.

What it costs

Every system is scoped and quoted individually: throughput and reliability targets drive cost more than feature count. We are equally happy to tell you that your current stack is fine: see why most startups over-engineer too early. For the language choice itself, read why Rust over Node.js in production, and for what an engagement covers, what a systems engineering agency actually does.

Also see: custom websites and AI automation.