a appnuma
Engineering studio

Custom software for teams that need to ship fast and run reliably.

We design, build and operate SaaS products, AI/ML systems, data pipelines and the observability that keeps them honest. From first prototype to production at scale.

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10+ years shipping production systems Cloud-native by default EU-based, remote-first
What we build

End-to-end engineering across the modern stack.

Pick a single capability or a full team. We embed with your engineers or run the build start to finish.

Custom SaaS products

Multi-tenant web apps, billing, auth, admin tooling — production-ready architecture without the boilerplate tax.

  • Multi-tenant
  • Stripe
  • RBAC
  • Admin UI

AI/ML systems

RAG, agents, fine-tuning, evals. We integrate LLMs into real product surfaces — with cost, latency and quality under control.

  • RAG
  • Agents
  • Evals
  • Fine-tuning

Data pipelines & ETL

Ingestion, transformation and warehousing at the volume your product demands. Reliable, testable and idempotent.

  • Airflow
  • dbt
  • Kafka
  • BigQuery
  • Snowflake

Observability & SRE

Metrics, logs, traces and SLOs that turn unknowns into dashboards. We instrument what matters and silence what doesn't.

  • OpenTelemetry
  • Prometheus
  • Grafana
  • SLOs

Cloud & DevOps

Infrastructure as code, CI/CD that's actually fast, and cloud bills that don't surprise you at end of month.

  • AWS
  • GCP
  • Terraform
  • Kubernetes
  • GitHub Actions

Integrations & APIs

Connect your product to the systems your customers already use. Webhooks, OAuth, event buses — done properly.

  • REST
  • GraphQL
  • OAuth
  • Webhooks
  • SDKs
How we work

Small senior team. Short cycles. Boring infrastructure.

No agency overhead, no junior bench, no surprise re-platforms. Engineering decisions with five-year half-lives.

01 — Discover

Understand the problem

Two weeks to map the domain, constraints and the riskiest unknowns. We tell you when not to build.

02 — Prototype

Ship the spine

A working slice end-to-end — auth, deploy, telemetry — in production from day one. No staging-theatre.

03 — Scale

Harden what works

SLOs, load tests, cost guardrails, runbooks. We turn the prototype into something you can run at 3am.

04 — Hand over

Leave you in control

Documented, owned by your team, with a clear path to keep going without us. Or stay on as your on-call partner.

Stack

The tools we reach for.

Pragmatic defaults. We pick boring tech for the load-bearing layers and let the product be the new thing.

TypeScriptPythonGoRustLaravelNext.jsFastAPINode PostgreSQLRedisClickHouseKafkaBigQuerySnowflake OpenAIAnthropicLangGraphvLLMpgvector AWSGCPCloudflareKubernetesTerraform OpenTelemetryPrometheusGrafanaSentry

Got a hard problem worth solving?

Tell us what you're building. We'll come back within two working days with an honest read on scope, risks and shape of a team.

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