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On-premise compliance AI on open-source LLMs

Financial Services · A financial institution in the GCC

Fully air-gapped retrieval and reasoning system over a financial institution's policy and case corpus. No data leaves the estate; every decision is auditable.

The problem

  • Compliance reviewers were buried in document review, with case backlogs growing month over month.
  • Hosted LLMs were not viable: data-residency and client-confidentiality rules required workloads to remain in-country and on-premise.
  • Earlier proofs-of-concept produced fluent but unverifiable answers, eroding trust.

The architecture

  • Air-gapped deployment of quantised open-source models on local GPUs, served via vLLM behind an internal gateway.
  • Hybrid retrieval with a domain-tuned re-ranker, returning citations from the canonical policy corpus.
  • Human-in-the-loop workflow: every recommendation is reviewed and signed off by a compliance officer before action.
LlamavLLMQdrantPostgreSQLKubernetesOpenTelemetry

The outcome

  • Reviewers retained authority over every decision, but spent their time on judgement rather than search.
  • The audit log gives the firm a defensible, regulator-ready record of every prompt, retrieval, model, and reviewer.

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