AI Infrastructure · Spire Digi Solution

AI Evaluation & Observability Platform

Because “it felt fine in testing” isn’t a release process for a probabilistic system.

Delivered at: Spire Digi Solution
Role: Lead architect — evaluation model, scoring pipeline and platform design.

The problem

AI output is probabilistic, so traditional unit tests alone can’t tell a team whether a production AI system is quietly improving or degrading with every prompt, model or RAG change. This platform turns that into a measurable, CI-gated signal instead of a gut feeling.

Architecture

Scroll sideways to see the full diagram
AI Evaluation & Observability PlatformProduction architecture — request flows top → bottom; security & observability span every layerClientslayer 1Dashboards & consoleSDK / API instrumentationEdge & networklayer 2WAF & DDoS shieldL7 filtering · bot controlAPI gatewayrouting · versioningRate limits & quotasper tenant / per keymTLS · TLS 1.3encrypted in transitIdentity & accesslayer 3OIDC / OAuth2SSO · short-lived tokensRBAC + ABACleast privilegeTenant isolationdata · vectors · toolsSecrets → Vaultno static credentialsAI security & guardrailslayer 4focusNeMo Guardrailstopical & safety railsInjection / jailbreak filterinput inspectionPII & secret redactioninbound & outboundPolicy engine · OPAallow / deny decisionsOutput validationgrounding · citationsEvaluation corelayer 5Event collectorhigh-throughput ingestTrace storefull prompt / agent / tool tracesEvaluation enginedeterministic + LLM-judgeScore aggregationblended into one scoreRegression gatesblock bad releases in CIExperiment comparisonmodel · prompt · RAG versionsExecution & toolslayer 6Judge model poolversioned · calibratedAlertingquality · safety · cost driftRetention & PII controlspolicy-basedModel layerlayer 7LLM gateway · routing & quotasPrimary model + auto fallbackSelf-hosted · vLLM / TritonEmbeddings serviceData & statelayer 8PostgreSQLpgvector / QdrantRedis cacheObject storageImmutable audit logcross-cutting — applied across every layer aboveSECURITY & COMPLIANCE · CROSS-CUTTINGSIEM & threat detectionruntime alertsSupply-chain scanningTrivy · Semgrep · GitleaksSBOM & image signingprovenanceAdversarial mappingOWASP LLM Top 10 · MITRE ATLASComplianceEU AI Act · ISO 42001 · NIST AI RMFOBSERVABILITY & OPS · CROSS-CUTTINGOpenTelemetry tracesprompts · steps · toolsMetricsPrometheus / GrafanaEvaluation & regression gatesblock bad releases in CICost & latency analyticsper tenant / routeAlerting & on-callSLOs · error budgetsCI/CD · IaCKubernetes · GitOpsTEN ARCHITECTURE PILLARS · REVIEWED END TO ENDScalabilitySecurityAI Security / GuardrailsReliability & ResilienceObservabilityGovernanceCost OptimizationData & RAG SecurityPerformanceMaintainability / DevSecOpsLegendSecurityGovernance / accessOrchestrationData / modelProcessing / executionObservability / storageTurns a probabilistic system into a measurable, CI-gated signal — so a bad prompt, model or RAG change never ships quietly.

Key capabilities

Full trace capture across prompts, agent steps and tool calls

Deterministic checks plus LLM-judge evaluation blended into one score

CI-integrated regression gates that automatically block a bad release

Experiment comparison across model, prompt and RAG versions

Cost, latency and safety metrics in a single operational dashboard

Architecture pillars

Designed and reviewed against all ten — see how I evaluate every architecture.

ScalabilitySecurityAI Security / GuardrailsReliability & ResilienceObservabilityGovernanceCost OptimizationData & RAG SecurityPerformanceMaintainability / DevSecOps

Technology

PythonFastAPIReactTypeScriptPostgreSQLRedisOpenTelemetryPrometheus / Grafana-compatible metricsVector storeDockerKubernetes

Want something like this, built properly?

I design and ship systems like this one — from architecture through to production.

Secure Enterprise RAG / Knowledge Intelligence Platform RetailGPT — Agentic Retail Intelligence Platform