THE COMPLETE COLLECTION
18 published engineering case studies. Some document different stages or components of the same system; this is not a count of independent clients.
Use the interactive project atlas · Browse by service · Read the buying guides
AI orchestration
A JWT-authenticated FastAPI AI gateway with circuit breaker, AES-256-GCM session encryption and Prometheus observability for a multi-product platform.
Python 3.12 · FastAPI · Uvicorn / Gunicorn · Gemini 2.5 Flash · Redis
AI orchestration
An enterprise cloud AI marketing site: a zero-library 3D constellation hero, live infrastructure status polling and a full security hardening stack.
React 18 · Vite 5 · TypeScript · Tailwind 3 · i18next
AI orchestration
A corporate website engineered with 40+ Radix UI primitives, shadcn/ui, Lenis smooth scroll and an AI-assisted Lovable.dev design workflow.
React 18 · Vite 5 · TypeScript · Tailwind 3 · shadcn/ui
AI orchestration
An end-to-end AI branch-audit platform: a 6-workflow orchestration state machine and Gemini Vision scoring with anti-hallucination safeguards.
n8n (6-workflow state machine) · Gemini Vision · Express (custom form) · React/Vite dashboard · Keycloak
AI orchestration
A fully automated AI branch-audit system for a 64-location retailer in Mexico, built on n8n, Gemini Vision and 7-layer fraud detection.
n8n (Cloud) · Gemini 2.5 Flash · Google Sheets · Google Drive · Google Docs
AI orchestration
A Telegram-native ROI audit system that quantifies executive time by dollar-per-hour value, using n8n, Gemini AI and Google Sheets — no frontend.
n8n · Telegram Bot API · Google Gemini API · Google Sheets API · n8n Schedule Trigger
AI orchestration
A real-time engineering command center for a cloud AI agency: Keycloak SSO, an AI assistant, health monitoring and zero-framework architecture.
Vanilla JS · Keycloak 26 · PKCE S256 · PostgreSQL 16 · FastAPI
AI orchestration
A compliant AI phone-intake agent on Twilio ConversationRelay: a code-locked honesty floor, ~1s per-turn latency, live EN/ES switching, no recording.
Node.js · ws (WebSocket) · Twilio ConversationRelay · Google Gemini 2.5 Flash · Google TTS (Journey)
AI orchestration
A 12-workflow, deficit-based Instagram engagement automation that delivers growth in organic ratios across phase-gated delivery windows.
n8n v2.10.4 · NocoDB · Apify Instagram Scraper · SMMFlare API · Chart.js v4.4.0
Data pipelines
A deterministic fiscal-enrichment API for a 243k-SKU auto-parts catalog: a 3-stage lookup chain, 26,420 rows corrected, zero LLM calls at runtime.
Node 20 · Express · PostgreSQL 16 · Redis (ioredis) · Zod
Data pipelines
A 4-tier RBAC inventory system for 5,000+ SKUs across 4 warehouses: dual auth, immutable audit logging and mobile-first floor use at 375px.
React 18 · Vite 5 · TanStack Query v5 · keycloak-js 26 · Express 4
Data pipelines
A client-operations platform where web form, AI chat and AI phone call merge into one canonical intake record driving a 6-stage onboarding pipeline.
Static HTML/CSS/JS (framework-free) · nginx · n8n · NocoDB · Keycloak
Data pipelines
Tracing an eight-figure AP overstatement to a duplicated pagination parameter: 2,725 surplus rows purged, the sync rebuilt as an idempotent pipeline.
React 18 + Vite · Keycloak OIDC · Node + Express · NocoDB · n8n
Data pipelines
Replacing a $20/mo transcription SaaS with a self-built n8n pipeline on OpenAI Whisper and Claude Haiku: 91% cheaper, under 30 seconds per file.
n8n · OpenAI Whisper API · Anthropic Claude Haiku · NocoDB · Webhook Trigger
Systems architecture
How Del Rey Valmoria built a zero-trust, security-hardened file upload form with 6-layer security, streaming to S3-compatible storage, and zero RAM buffering.
Node.js 20 Alpine · Express 4 · multer (streaming) · AWS SDK v3 · MinIO
Systems architecture
How Del Rey Valmoria designed and engineered a conscious, living 3D portfolio powered by React, Three.js, Google Gemini, and Neon PostgreSQL.
Systems architecture
Meridian: a multi-tenant container-tracking SaaS on PostgreSQL RLS with an adaptive, ETA-anchored polling scheduler that cut vendor API calls ~6×.
Node 20 · Express + Helmet · PostgreSQL 16 (Force RLS) · Redis 7 · React 18 + Vite
Systems architecture
A client-branded, self-hosted fitment intake tool for a LATAM tire and wheel retailer, shipped in ~2 weeks: 64 MB RAM, zero SaaS lock-in.
HTML/CSS/JS (static) · Formbricks (self-hosted) · nginx:alpine · Docker · Coolify
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