Kahoona is a senior engineering consultancy working in Java, Node.js, and applied AI.
We come in for the systems that need to be right the first time — backends that hold up under real load, LLM features that survive production, and platforms your team can run after we hand them back.
We measure success by what your system does in production — tail latency at peak load, deploy frequency, time spent on incident response.
We’ve also built our own financial market-data and algorithmic trading systems, so we know real-time, low-latency engineering from the inside.
Engagements typically run three to twelve months and combine hands-on engineering with architecture work and knowledge transfer. Small teams, senior people, accountable for outcomes.
Java (Spring Boot, Quarkus) and Node.js (TypeScript) services built for resilience and throughput. Event-driven architectures, well-bounded services, and the unglamorous discipline of getting concurrency right.
Kafka, modern open-source databases like Postgres for predictable performance and cost efficiency, and the JVM ecosystem we’ve been shipping for over a decade.
LLM integration that survives contact with production. Retrieval pipelines on your private data, agentic workflows with proper tool-use and guardrails, evals and observability so you know when the model regresses before your customers do.
Model-agnostic — chosen on the merits.
CI/CD that deploys on green. Modern infrastructure-as-code tooling, container orchestration when it earns its keep.
Observability instrumented from day one with Prometheus, Grafana, and OpenTelemetry — built for the questions you’ll actually need to answer at 3 AM.
Load testing, profiling, and the patient work of finding the bottleneck three layers deep. We measure, we fix, and we leave behind the runbook so your team can do it themselves next time.
Resilient and predictable systems by design, not by accident.
Building something hard? Tell us what you’re working on and we’ll tell you honestly whether we’re the right fit. European-based, working with clients worldwide.
